Csharp/C Sharp by API/System.Windows.Forms/Label — различия между версиями

Текущая версия на 15:09, 26 мая 2010

Содержание

1 Label.Background
2 Label.Click
3 Label.DataBindings
4 Label.DoDragDrop
5 Label.Image
6 Label.ImageAlign
7 Label.ImageIndex
8 Label.ImageList
9 Label.Localtion
10 Label.Margin
11 Label.MouseDown
12 Label.MouseHover
13 Label.MouseMove
14 Label.MouseUp
15 Label.Size
16 Label.Text

Label.Background

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class Form1 : Form {

     private System.Windows.Forms.Button learnMoreButton;
     private System.Windows.Forms.Label label2;
     private System.Windows.Forms.Label label1;
     
     public Form1() {
       InitializeComponent();
     }
     private void InitializeComponent()
     {
        this.learnMoreButton = new System.Windows.Forms.Button();
        this.label2 = new System.Windows.Forms.Label();
        this.label1 = new System.Windows.Forms.Label();
        this.SuspendLayout();
        // 
        // learnMoreButton
        // 
        this.learnMoreButton.Font = new System.Drawing.Font( "Microsoft Sans Serif", 14F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ( ( byte ) ( 0 ) ) );
        this.learnMoreButton.Location = new System.Drawing.Point( 17, 81 );
        this.learnMoreButton.Name = "learnMoreButton";
        this.learnMoreButton.Size = new System.Drawing.Size( 120, 59 );
        this.learnMoreButton.TabIndex = 11;
        this.learnMoreButton.Text = "Learn More";
        // 
        // label2
        // 
        this.label2.BackColor = System.Drawing.Color.LightYellow;
        this.label2.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
        this.label2.Font = new System.Drawing.Font( "Microsoft Sans Serif", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte ) ( 0 ) ) );
        this.label2.ForeColor = System.Drawing.Color.MidnightBlue;
        this.label2.Location = new System.Drawing.Point( 17, 154 );
        this.label2.Name = "label2";
        this.label2.Size = new System.Drawing.Size( 273, 25 );
        this.label2.TabIndex = 10;
        this.label2.Text = "text";
        this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
        // 
        // label1
        // 
        this.label1.BackColor = System.Drawing.Color.LightYellow;
        this.label1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
        this.label1.Font = new System.Drawing.Font( "Microsoft Sans Serif", 20.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte ) ( 0 ) ) );
        this.label1.ForeColor = System.Drawing.Color.MidnightBlue;
        this.label1.Location = new System.Drawing.Point( 17, 17 );
        this.label1.Name = "label1";
        this.label1.Size = new System.Drawing.Size( 273, 47 );
        this.label1.TabIndex = 9;
        this.label1.Text = "test";
        this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
        // 
        // VisualInheritanceForm
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF( 6F, 13F );
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size( 307, 201 );
        this.Controls.Add( this.learnMoreButton );
        this.Controls.Add( this.label2 );
        this.Controls.Add( this.label1 );
        this.Name = "VisualInheritanceForm";
        this.Text = "Visual Inheritance";
        this.ResumeLayout( false );
     }
   [STAThread]
   static void Main()
   {
       Application.EnableVisualStyles();
       Application.Run(new Form1());
   }

}

 </source>

Label.Click

<source lang="csharp"> using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class LabelWithGenericEvent : System.Windows.Forms.Form {

 private System.Windows.Forms.Label lblTitle;
 public LabelWithGenericEvent()
 {
   InitializeComponent();
 }
 private void InitializeComponent()
 {
   this.lblTitle = new System.Windows.Forms.Label();
   this.SuspendLayout();
   // 
   // lblTitle
   // 
   this.lblTitle.Location = new System.Drawing.Point(40, 24);
   this.lblTitle.Name = "lblTitle";
   this.lblTitle.Size = new System.Drawing.Size(150, 25);
   this.lblTitle.TabIndex = 0;
   this.lblTitle.Text = "Events Demonstrator";
   this.lblTitle.Click += new System.EventHandler(this.GenericEventHandler);
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(242, 173);
   this.Controls.AddRange(new System.Windows.Forms.Control[] {  this.lblTitle});
   this.ResumeLayout(false);
 }
 [STAThread]
 static void Main() 
 {
   Application.Run(new LabelWithGenericEvent());
 }
 private void GenericEventHandler(object sender, EventArgs e)
 {
   MessageBox.Show("Generic event handler","Event Demo");
 }

}

 </source>

Label.DataBindings

<source lang="csharp"> using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; using System.Data.SqlClient;

  public class Form1 : System.Windows.Forms.Form {
     private System.Windows.Forms.Label label1;
     private System.Windows.Forms.Label label2;
     private System.Data.DataSet dataSet1;

     private System.ruponentModel.Container components = null;
     public Form1(){ 

        InitializeComponent();
     }
     private void InitializeComponent() {
        this.label1 = new System.Windows.Forms.Label();
        this.label2 = new System.Windows.Forms.Label();
        this.dataSet1 = new System.Data.DataSet();
        ((System.ruponentModel.ISupportInitialize)(this.dataSet1)).BeginInit();
        this.SuspendLayout();

        this.label1.Location = new System.Drawing.Point(16, 8);
        this.label1.Name = "label1";
        this.label1.Size = new System.Drawing.Size(72, 16);
        this.label1.TabIndex = 0;
        this.label1.Text = "label1";

        this.label2.Location = new System.Drawing.Point(16, 40);
        this.label2.Name = "label2";
        this.label2.Size = new System.Drawing.Size(72, 16);
        this.label2.TabIndex = 1;
        this.label2.Text = "label2";

        this.dataSet1.DataSetName = "NewDataSet";
        this.dataSet1.Locale = new System.Globalization.CultureInfo("en-GB");

        this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
        this.ClientSize = new System.Drawing.Size(128, 69);
        this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                     this.label2,
                                                                     this.label1});
        this.Name = "Form1";
        this.Text = "Form1";
        this.Load += new System.EventHandler(this.Form1_Load);
        ((System.ruponentModel.ISupportInitialize)(this.dataSet1)).EndInit();
        this.ResumeLayout(false);
     }

     static void Main() {
        Application.Run(new Form1());
     }
     private void Form1_Load(object sender, System.EventArgs e) {
        string connString = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI";
   
        string SQL = @"select * from employee";
        SqlConnection Conn = new SqlConnection(connString);
        SqlDataAdapter da = new SqlDataAdapter(SQL, Conn);
        da.Fill(dataSet1, "employee");
        // Bind the Label"s Text property to the ProductID of the Products table
        label1.DataBindings.Add("Text", dataSet1, "employee.ID");
        // Bind the second label"s Text property to the UnitPrice column
        label2.DataBindings.Add("Text", dataSet1, "employee.firstname");
     }
  }
  
 </source>

Label.DoDragDrop

/* User Interfaces in C#: Windows Forms and Custom Controls by Matthew MacDonald Publisher: Apress ISBN: 1590590457

/

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms;

   /// <summary>
   /// Summary description for ControlPalette.
   /// </summary>
   public class ControlPalette : System.Windows.Forms.Form
   {
       internal System.Windows.Forms.ImageList images;
       internal System.Windows.Forms.Label lblPictureThree;
       internal System.Windows.Forms.Label lblPictureTwo;
       internal System.Windows.Forms.Label lblPictureOne;
       private System.ruponentModel.IContainer components;
       public ControlPalette()
       {
           //
           // Required for Windows Form Designer support
           //
           InitializeComponent();
           //
           // TODO: Add any constructor code after InitializeComponent call
           //
       }
       /// <summary>
       /// Clean up any resources being used.
       /// </summary>
       protected override void Dispose( bool disposing )
       {
           if( disposing )
           {
               if(components != null)
               {
                   components.Dispose();
               }
           }
           base.Dispose( disposing );
       }
       #region Windows Form Designer generated code
       /// <summary>
       /// Required method for Designer support - do not modify
       /// the contents of this method with the code editor.
       /// </summary>
       private void InitializeComponent()
       {
           this.ruponents = new System.ruponentModel.Container();
           System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(ControlPalette));
           this.images = new System.Windows.Forms.ImageList(this.ruponents);
           this.lblPictureThree = new System.Windows.Forms.Label();
           this.lblPictureTwo = new System.Windows.Forms.Label();
           this.lblPictureOne = new System.Windows.Forms.Label();
           this.SuspendLayout();
           // 
           // images
           // 
           this.images.ColorDepth = System.Windows.Forms.ColorDepth.Depth8Bit;
           this.images.ImageSize = new System.Drawing.Size(16, 16);
           this.images.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("images.ImageStream")));
           this.images.TransparentColor = System.Drawing.Color.Transparent;
           // 
           // lblPictureThree
           // 
           this.lblPictureThree.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
           this.lblPictureThree.Image = ((System.Drawing.Bitmap)(resources.GetObject("lblPictureThree.Image")));
           this.lblPictureThree.ImageIndex = 2;
           this.lblPictureThree.ImageList = this.images;
           this.lblPictureThree.Location = new System.Drawing.Point(8, 112);
           this.lblPictureThree.Name = "lblPictureThree";
           this.lblPictureThree.Size = new System.Drawing.Size(56, 48);
           this.lblPictureThree.TabIndex = 3;
           this.lblPictureThree.MouseDown += new System.Windows.Forms.MouseEventHandler(this.lbl_MouseDown);
           // 
           // lblPictureTwo
           // 
           this.lblPictureTwo.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
           this.lblPictureTwo.Image = ((System.Drawing.Bitmap)(resources.GetObject("lblPictureTwo.Image")));
           this.lblPictureTwo.ImageIndex = 1;
           this.lblPictureTwo.ImageList = this.images;
           this.lblPictureTwo.Location = new System.Drawing.Point(8, 60);
           this.lblPictureTwo.Name = "lblPictureTwo";
           this.lblPictureTwo.Size = new System.Drawing.Size(56, 48);
           this.lblPictureTwo.TabIndex = 2;
           this.lblPictureTwo.MouseDown += new System.Windows.Forms.MouseEventHandler(this.lbl_MouseDown);
           // 
           // lblPictureOne
           // 
           this.lblPictureOne.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
           this.lblPictureOne.Image = ((System.Drawing.Bitmap)(resources.GetObject("lblPictureOne.Image")));
           this.lblPictureOne.ImageIndex = 0;
           this.lblPictureOne.ImageList = this.images;
           this.lblPictureOne.Location = new System.Drawing.Point(8, 8);
           this.lblPictureOne.Name = "lblPictureOne";
           this.lblPictureOne.Size = new System.Drawing.Size(56, 48);
           this.lblPictureOne.TabIndex = 1;
           this.lblPictureOne.MouseDown += new System.Windows.Forms.MouseEventHandler(this.lbl_MouseDown);
           // 
           // ControlPalette
           // 
           this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
           this.ClientSize = new System.Drawing.Size(76, 174);
           this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                         this.lblPictureThree,
                                                                         this.lblPictureTwo,
                                                                         this.lblPictureOne});
           this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.SizableToolWindow;
           this.Name = "ControlPalette";
           this.Text = "Pictures";
           this.ResumeLayout(false);
       }
       #endregion
       private void lbl_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
       {
           Label lbl = (Label)sender;
           lbl.DoDragDrop(lbl.Image, DragDropEffects.Copy);
       }
       /// <summary>
       /// The main entry point for the application.
       /// </summary>
       [STAThread]
       static void Main() 
       {
           Application.Run(new ControlPalette());
       }
   }
  
   
   
 </source>

Label.Image

<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms; public class LabelImageAdding : Form {

 Label lblEcho;
 TextBox txt;
 public LabelImageAdding()
 {
   Size = new Size(300,250);
   lblEcho = new Label();
   lblEcho.Parent = this;
   lblEcho.Text = "test";
   lblEcho.Location = new Point(0,0);
   lblEcho.AutoSize = true;
   lblEcho.BorderStyle = BorderStyle.Fixed3D;
   int yDelta = lblEcho.Height + 10;
   
   Image img = Image.FromFile("YourFile.bmp");
   Label lblImage = new Label();
   lblImage.Parent = this;
   lblImage.Location = new Point(250, 0);
   lblImage.Image = img;
   lblImage.Anchor = AnchorStyles.Top | AnchorStyles.Right;
   lblImage.Size = new Size(img.Width, img.Height);
   Label lblCaption = new Label();
   lblCaption.Parent = this;
   lblCaption.Text = "&Enter Text Here:";
   lblCaption.Size = new Size(lblCaption.PreferredWidth, lblCaption.PreferredHeight);
   lblCaption.Location = new Point(0, yDelta);
   lblCaption.BorderStyle = BorderStyle.FixedSingle;
   txt = new TextBox();
   txt.Parent = this;
   txt.Size = new Size(100,23);
   txt.Location = new Point(lblCaption.Width + 5, yDelta);
   txt.TextChanged += new System.EventHandler(txt_TextChanged);
 }
 static void Main() 
 {
   Application.Run(new LabelImageAdding());
 }
 private void txt_TextChanged(object sender, EventArgs e)
 {
   lblEcho.Text = txt.Text;
 }

}

 </source>

Label.ImageAlign

using System; using System.Drawing; using System.Windows.Forms; using System.Collections; public class ImageLists : Form {

 ImageList imgList;
 Label lbl;
 LinkLabel lnk;
 Button btn;
 public ImageLists()
 {
      Size = new Size(300,300);
   imgList = new ImageList();
   Image img;
   String[] arFiles = {"1.ico","2.ico","3.ico"};

   for (int i = 0; i < arFiles.Length; i++)
   {
     img = Image.FromFile(arFiles[i]);
     imgList.Images.Add(img);
   }
   imgList.ImageSize = new Size(32, 32);

   lbl = new Label();
      lbl.Parent = this;
      lbl.Text = "Label";
      lbl.Location = new Point(0,0);
      lbl.Size = new Size(lbl.PreferredWidth + imgList.ImageSize.Width, 
     imgList.ImageSize.Height + 10);
      lbl.BorderStyle = BorderStyle.Fixed3D;
   lbl.ImageList = imgList;
   lbl.ImageIndex = 0;
   lbl.ImageAlign = ContentAlignment.MiddleRight;
      int yDelta = lbl.Height + 10;
    
      lnk = new LinkLabel();
      lnk.Parent = this;
      lnk.Text = "LinkLabel";
      lnk.Size = new Size(lnk.PreferredWidth + imgList.ImageSize.Width, 
     imgList.ImageSize.Height + 10);
      lnk.Location = new Point(0, yDelta);
   lnk.ImageList = imgList;
   lnk.ImageIndex = 0;
   lnk.ImageAlign = ContentAlignment.MiddleRight;
   btn = new Button();
   btn.Parent = this;
   btn.ImageList = imgList;
   btn.ImageIndex = imgList.Images.Count - 1;
   btn.Location = new Point(0, 2 * yDelta);
   btn.Size = new Size(3 * imgList.ImageSize.Width, 
             2 * imgList.ImageSize.Height);

   lbl.ImageIndex = 1;
   lnk.ImageIndex = 0;
   btn.ImageIndex = 2;
 }
 static void Main() 
 {
     Application.Run(new ImageLists());
 }

}

 </source>

Label.ImageIndex

using System; using System.Drawing; using System.Windows.Forms; using System.Collections; public class ImageLists : Form {

 ImageList imgList;
 Label lbl;
 LinkLabel lnk;
 Button btn;
 public ImageLists()
 {
      Size = new Size(300,300);
   imgList = new ImageList();
   Image img;
   String[] arFiles = {"1.ico","2.ico","3.ico"};

   for (int i = 0; i < arFiles.Length; i++)
   {
     img = Image.FromFile(arFiles[i]);
     imgList.Images.Add(img);
   }
   imgList.ImageSize = new Size(32, 32);

   lbl = new Label();
      lbl.Parent = this;
      lbl.Text = "Label";
      lbl.Location = new Point(0,0);
      lbl.Size = new Size(lbl.PreferredWidth + imgList.ImageSize.Width, 
     imgList.ImageSize.Height + 10);
      lbl.BorderStyle = BorderStyle.Fixed3D;
   lbl.ImageList = imgList;
   lbl.ImageIndex = 0;
   lbl.ImageAlign = ContentAlignment.MiddleRight;
      int yDelta = lbl.Height + 10;
    
      lnk = new LinkLabel();
      lnk.Parent = this;
      lnk.Text = "LinkLabel";
      lnk.Size = new Size(lnk.PreferredWidth + imgList.ImageSize.Width, 
     imgList.ImageSize.Height + 10);
      lnk.Location = new Point(0, yDelta);
   lnk.ImageList = imgList;
   lnk.ImageIndex = 0;
   lnk.ImageAlign = ContentAlignment.MiddleRight;
   btn = new Button();
   btn.Parent = this;
   btn.ImageList = imgList;
   btn.ImageIndex = imgList.Images.Count - 1;
   btn.Location = new Point(0, 2 * yDelta);
   btn.Size = new Size(3 * imgList.ImageSize.Width, 
             2 * imgList.ImageSize.Height);

   lbl.ImageIndex = 1;
   lnk.ImageIndex = 0;
   btn.ImageIndex = 2;
 }
 static void Main() 
 {
     Application.Run(new ImageLists());
 }

}

 </source>

Label.ImageList

using System; using System.Drawing; using System.Windows.Forms; using System.Collections; public class ImageLists : Form {

 ImageList imgList;
 Label lbl;
 LinkLabel lnk;
 Button btn;
 public ImageLists()
 {
      Size = new Size(300,300);
   imgList = new ImageList();
   Image img;
   String[] arFiles = {"1.ico","2.ico","3.ico"};

   for (int i = 0; i < arFiles.Length; i++)
   {
     img = Image.FromFile(arFiles[i]);
     imgList.Images.Add(img);
   }
   imgList.ImageSize = new Size(32, 32);

   lbl = new Label();
      lbl.Parent = this;
      lbl.Text = "Label";
      lbl.Location = new Point(0,0);
      lbl.Size = new Size(lbl.PreferredWidth + imgList.ImageSize.Width, 
     imgList.ImageSize.Height + 10);
      lbl.BorderStyle = BorderStyle.Fixed3D;
   lbl.ImageList = imgList;
   lbl.ImageIndex = 0;
   lbl.ImageAlign = ContentAlignment.MiddleRight;
      int yDelta = lbl.Height + 10;
    
      lnk = new LinkLabel();
      lnk.Parent = this;
      lnk.Text = "LinkLabel";
      lnk.Size = new Size(lnk.PreferredWidth + imgList.ImageSize.Width, 
     imgList.ImageSize.Height + 10);
      lnk.Location = new Point(0, yDelta);
   lnk.ImageList = imgList;
   lnk.ImageIndex = 0;
   lnk.ImageAlign = ContentAlignment.MiddleRight;
   btn = new Button();
   btn.Parent = this;
   btn.ImageList = imgList;
   btn.ImageIndex = imgList.Images.Count - 1;
   btn.Location = new Point(0, 2 * yDelta);
   btn.Size = new Size(3 * imgList.ImageSize.Width, 
             2 * imgList.ImageSize.Height);

   lbl.ImageIndex = 1;
   lnk.ImageIndex = 0;
   btn.ImageIndex = 2;
 }
 static void Main() 
 {
     Application.Run(new ImageLists());
 }

}

 </source>

Label.Localtion

<source lang="csharp"> using System; using System.Windows.Forms; class MainForm : Form {

   private Label label1;
   private TextBox textBox1;
   private Button button1;
   public MainForm()
   {
        this.label1 = new Label();
        this.textBox1 = new TextBox();
        this.button1 = new Button();
        this.SuspendLayout();
        this.label1.Location = new System.Drawing.Point(16, 36);
        this.label1.Name = "label1";
        this.label1.Size = new System.Drawing.Size(128, 16);
        this.label1.TabIndex = 0;
        this.label1.Text = "Please enter your name:"; 
        this.textBox1.Location = new System.Drawing.Point(152, 32);
        this.textBox1.Name = "textBox1";
        this.textBox1.TabIndex = 1;
        this.textBox1.Text = "";
        this.button1.Location = new System.Drawing.Point(109, 80);
        this.button1.Name = "button1";
        this.button1.TabIndex = 2;
        this.button1.Text = "Enter";
        this.button1.Click += new System.EventHandler(this.button1_Click);
        this.ClientSize = new System.Drawing.Size(292, 126);
        this.Controls.Add(this.button1);
        this.Controls.Add(this.textBox1);
        this.Controls.Add(this.label1);
        this.Name = "form1";
        this.Text = "Visual C#";
        this.ResumeLayout(false);
    }
    private void button1_Click(object sender, System.EventArgs e)
    {
       System.Console.WriteLine("User entered: " + textBox1.Text);
       MessageBox.Show("Welcome, " + textBox1.Text, "Visual C#");
    }
    [STAThread]
    public static void Main()
    {
       Application.EnableVisualStyles();
       Application.Run(new MainForm());
    }

}

 </source>

Label.Margin

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class Form1 : Form {

   private System.Windows.Forms.GroupBox groupBox1;
   private System.Windows.Forms.Label label1;
   private System.Windows.Forms.TextBox textBox1;
   private System.Windows.Forms.Button cmdSetText;
   private System.Windows.Forms.Button cmdSetTextConstraint;
 public Form1() {
       InitializeComponent();
 }
   private void InitializeComponent(){
       this.groupBox1 = new System.Windows.Forms.GroupBox();
       this.label1 = new System.Windows.Forms.Label();
       this.textBox1 = new System.Windows.Forms.TextBox();
       this.cmdSetText = new System.Windows.Forms.Button();
       this.cmdSetTextConstraint = new System.Windows.Forms.Button();
       this.groupBox1.SuspendLayout();
       this.SuspendLayout();
       // 
       // groupBox1
       // 
       this.groupBox1.AutoSize = true;
       this.groupBox1.Controls.Add(this.label1);
       this.groupBox1.Location = new System.Drawing.Point(15, 133);
       this.groupBox1.Margin = new System.Windows.Forms.Padding(20);
       this.groupBox1.Name = "groupBox1";
       this.groupBox1.Size = new System.Drawing.Size(200, 100);
       this.groupBox1.TabIndex = 0;
       this.groupBox1.TabStop = false;
       this.groupBox1.Text = "groupBox1";
       // 
       // label1
       // 
       this.label1.AutoSize = true;
       this.label1.Location = new System.Drawing.Point(17, 25);
       this.label1.Margin = new System.Windows.Forms.Padding(5);
       this.label1.Name = "label1";
       this.label1.Size = new System.Drawing.Size(35, 13);
       this.label1.TabIndex = 0;
       this.label1.Text = "label1";
       // 
       // textBox1
       // 
       this.textBox1.Location = new System.Drawing.Point(15, 12);
       this.textBox1.Multiline = true;
       this.textBox1.Name = "textBox1";
       this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
       this.textBox1.Size = new System.Drawing.Size(200, 47);
       this.textBox1.TabIndex = 1;
       this.textBox1.Text = "The quick brown fox jumps over the lazy dog. The quick brown fox jumps over the l" +
           "azy dog.";
       // 
       // cmdSetText
       // 
       this.cmdSetText.Location = new System.Drawing.Point(50, 65);
       this.cmdSetText.Name = "cmdSetText";
       this.cmdSetText.Size = new System.Drawing.Size(165, 23);
       this.cmdSetText.TabIndex = 2;
       this.cmdSetText.Text = "Set Text";
       this.cmdSetText.UseVisualStyleBackColor = true;
       this.cmdSetText.Click += new System.EventHandler(this.cmdSetText_Click);
       // 
       // cmdSetTextConstraint
       // 
       this.cmdSetTextConstraint.Location = new System.Drawing.Point(50, 91);
       this.cmdSetTextConstraint.Name = "cmdSetTextConstraint";
       this.cmdSetTextConstraint.Size = new System.Drawing.Size(165, 23);
       this.cmdSetTextConstraint.TabIndex = 3;
       this.cmdSetTextConstraint.Text = "Constrain Label and Set Text";
       this.cmdSetTextConstraint.UseVisualStyleBackColor = true;
       this.cmdSetTextConstraint.Click += new System.EventHandler(this.cmdSetTextConstraint_Click);
       // 
       // Form1
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.AutoSize = true;
       this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
       this.ClientSize = new System.Drawing.Size(247, 336);
       this.Controls.Add(this.cmdSetTextConstraint);
       this.Controls.Add(this.cmdSetText);
       this.Controls.Add(this.textBox1);
       this.Controls.Add(this.groupBox1);
       this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
       this.Name = "Form1";
       this.Text = "Form1";
       this.groupBox1.ResumeLayout(false);
       this.groupBox1.PerformLayout();
       this.ResumeLayout(false);
       this.PerformLayout();
   }
   private void cmdSetText_Click(object sender, EventArgs e)
   {
       label1.MaximumSize = new Size(0,0);
       label1.Text = "";
       label1.Text = textBox1.Text;
   }
   private void cmdSetTextConstraint_Click(object sender, EventArgs e)
   {
       label1.MaximumSize = new Size(200,0);
       label1.Text = textBox1.Text;
   }
 [STAThread]
 static void Main()
 {
   Application.EnableVisualStyles();
   Application.Run(new Form1());
 }

}

 </source>

Label.MouseDown

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form {

 internal System.Windows.Forms.Label lblDragger;
 public Form1()
 {
   this.lblDragger = new System.Windows.Forms.Label();
   this.SuspendLayout();
   this.lblDragger.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
   this.lblDragger.Image = new Bitmap("winter.jpg");
   this.lblDragger.Location = new System.Drawing.Point(110, 105);
   this.lblDragger.Name = "lblDragger";
   this.lblDragger.Size = new System.Drawing.Size(72, 56);
   this.lblDragger.TabIndex = 2;
   this.lblDragger.MouseUp += new System.Windows.Forms.MouseEventHandler(this.lblDragger_MouseUp);
   this.lblDragger.MouseMove += new System.Windows.Forms.MouseEventHandler(this.lblDragger_MouseMove);
   this.lblDragger.MouseDown += new System.Windows.Forms.MouseEventHandler(this.lblDragger_MouseDown);
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(292, 266);
   this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                   this.lblDragger});
   this.Text = "Fake Drag And Drop";
   this.ResumeLayout(false);
 }
 [STAThread]
 static void Main() 
 {
   Application.Run(new Form1());
 }

 private bool isDragging = false;

 private int clickOffsetX, clickOffsetY;

 private void lblDragger_MouseDown(System.Object sender, System.Windows.Forms.MouseEventArgs e)
 {
   isDragging = true;
   clickOffsetX = e.X;
   clickOffsetY = e.Y;
 }
 private void lblDragger_MouseUp(System.Object sender, System.Windows.Forms.MouseEventArgs e)
 {
   isDragging = false;
 }
 private void lblDragger_MouseMove(System.Object sender,
   System.Windows.Forms.MouseEventArgs e)
 {
   if (isDragging == true)
   {
     lblDragger.Left = e.X + lblDragger.Left - clickOffsetX;
     lblDragger.Top = e.Y + lblDragger.Top - clickOffsetY;
   }
 }

}

 </source>

Label.MouseHover

<source lang="csharp"> using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class frmMouseButtons : System.Windows.Forms.Form {

   private System.Windows.Forms.Label lblLeftClick;
   private System.Windows.Forms.Label lblRightClick;
   private System.Windows.Forms.Label lblMiddleClick;
   private System.Windows.Forms.Label lblHover;
   public frmMouseButtons() {
       this.lblLeftClick = new System.Windows.Forms.Label();
       this.lblRightClick = new System.Windows.Forms.Label();
       this.lblMiddleClick = new System.Windows.Forms.Label();
       this.lblHover = new System.Windows.Forms.Label();
       this.SuspendLayout();
       this.lblLeftClick.Location = new System.Drawing.Point(8, 8);
       this.lblRightClick.Location = new System.Drawing.Point(8, 32);
       this.lblRightClick.Size = new System.Drawing.Size(100, 32);
       this.lblMiddleClick.Location = new System.Drawing.Point(8, 72);
       this.lblHover.Location = new System.Drawing.Point(8, 104);
       this.lblHover.MouseEnter += new System.EventHandler(this.lblHover_MouseEnter);
       this.lblHover.MouseHover += new System.EventHandler(this.lblHover_MouseHover);
       this.lblHover.MouseLeave += new System.EventHandler(this.lblHover_MouseLeave);
       this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
       this.ClientSize = new System.Drawing.Size(184, 198);
       this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                     this.lblHover,
                                     this.lblMiddleClick,
                                     this.lblRightClick,
                                     this.lblLeftClick});
       this.MaximizeBox = false;
       this.ResumeLayout(false);
   }
   protected override void OnMouseDown(MouseEventArgs e) {
       switch (e.Button) {
           case (MouseButtons.Left):
               lblLeftClick.Text = "Left Click";
               break;
           case (MouseButtons.Middle):
               lblLeftClick.Text = "Middle Click";
               break;
           case (MouseButtons.Right):
               lblLeftClick.Text = "Right Click";
               break;
           case (MouseButtons.XButton1):
               lblLeftClick.Text = "XButton1 Click";
               break;
           case (MouseButtons.XButton2):
               lblLeftClick.Text = "XButton2 Click";
               break;
       }
       switch (e.Clicks) {
           case 1:
               lblMiddleClick.Text = "Single Click";
               break;
           case 2:
               lblMiddleClick.Text = "Double Click!";
               break;
           default:
               lblMiddleClick.Text = "Many clicks!";
               break;
       }
   }
   protected override void OnMouseWheel(MouseEventArgs e) {
       switch (e.Delta) {
           case -360:
               lblRightClick.Text = "One Rotation Reverse";
               break;
           case -720:
               lblRightClick.Text = "Two Rotations Reverse";
               break;
           case 360:
               lblRightClick.Text = "One Rotation Forward";
               break;
           case 720:
               lblRightClick.Text = "Two Rotations Forward";
               break;
           default:
               lblRightClick.Text = "Rotation wasn"t full turn of wheel";
               break;
       }
   }

   protected void lblHover_MouseEnter(object sender, EventArgs e) {
       lblRightClick.Text = "One Rotation Forward";
       lblHover.Text = "Entering label";
       Cursor = Cursors.NoMove2D;
   }
   protected void lblHover_MouseHover(object sender, EventArgs e) {
       lblHover.Text = "Hovering over label";
       Cursor = Cursors.Hand;
       System.Diagnostics.Debug.WriteLine("hover");
   }
   protected void lblHover_MouseLeave(object sender, EventArgs e) {
       lblHover.Text = "Leaving label";
       Cursor = Cursors.Default;
   }
   [STAThread]
   static void Main() {
       Application.Run(new frmMouseButtons());
   }

}

 </source>

Label.MouseMove

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form {

 internal System.Windows.Forms.Label lblDragger;
 public Form1()
 {
   this.lblDragger = new System.Windows.Forms.Label();
   this.SuspendLayout();
   this.lblDragger.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
   this.lblDragger.Image = new Bitmap("winter.jpg");
   this.lblDragger.Location = new System.Drawing.Point(110, 105);
   this.lblDragger.Name = "lblDragger";
   this.lblDragger.Size = new System.Drawing.Size(72, 56);
   this.lblDragger.TabIndex = 2;
   this.lblDragger.MouseUp += new System.Windows.Forms.MouseEventHandler(this.lblDragger_MouseUp);
   this.lblDragger.MouseMove += new System.Windows.Forms.MouseEventHandler(this.lblDragger_MouseMove);
   this.lblDragger.MouseDown += new System.Windows.Forms.MouseEventHandler(this.lblDragger_MouseDown);
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(292, 266);
   this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                   this.lblDragger});
   this.Text = "Fake Drag And Drop";
   this.ResumeLayout(false);
 }
 [STAThread]
 static void Main() 
 {
   Application.Run(new Form1());
 }

 private bool isDragging = false;

 private int clickOffsetX, clickOffsetY;

 private void lblDragger_MouseDown(System.Object sender, System.Windows.Forms.MouseEventArgs e)
 {
   isDragging = true;
   clickOffsetX = e.X;
   clickOffsetY = e.Y;
 }
 private void lblDragger_MouseUp(System.Object sender, System.Windows.Forms.MouseEventArgs e)
 {
   isDragging = false;
 }
 private void lblDragger_MouseMove(System.Object sender,
   System.Windows.Forms.MouseEventArgs e)
 {
   if (isDragging == true)
   {
     lblDragger.Left = e.X + lblDragger.Left - clickOffsetX;
     lblDragger.Top = e.Y + lblDragger.Top - clickOffsetY;
   }
 }

}

 </source>

Label.MouseUp

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form {

 internal System.Windows.Forms.Label lblDragger;
 public Form1()
 {
   this.lblDragger = new System.Windows.Forms.Label();
   this.SuspendLayout();
   this.lblDragger.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
   this.lblDragger.Image = new Bitmap("winter.jpg");
   this.lblDragger.Location = new System.Drawing.Point(110, 105);
   this.lblDragger.Name = "lblDragger";
   this.lblDragger.Size = new System.Drawing.Size(72, 56);
   this.lblDragger.TabIndex = 2;
   this.lblDragger.MouseUp += new System.Windows.Forms.MouseEventHandler(this.lblDragger_MouseUp);
   this.lblDragger.MouseMove += new System.Windows.Forms.MouseEventHandler(this.lblDragger_MouseMove);
   this.lblDragger.MouseDown += new System.Windows.Forms.MouseEventHandler(this.lblDragger_MouseDown);
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(292, 266);
   this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                   this.lblDragger});
   this.Text = "Fake Drag And Drop";
   this.ResumeLayout(false);
 }
 [STAThread]
 static void Main() 
 {
   Application.Run(new Form1());
 }

 private bool isDragging = false;

 private int clickOffsetX, clickOffsetY;

 private void lblDragger_MouseDown(System.Object sender, System.Windows.Forms.MouseEventArgs e)
 {
   isDragging = true;
   clickOffsetX = e.X;
   clickOffsetY = e.Y;
 }
 private void lblDragger_MouseUp(System.Object sender, System.Windows.Forms.MouseEventArgs e)
 {
   isDragging = false;
 }
 private void lblDragger_MouseMove(System.Object sender,
   System.Windows.Forms.MouseEventArgs e)
 {
   if (isDragging == true)
   {
     lblDragger.Left = e.X + lblDragger.Left - clickOffsetX;
     lblDragger.Top = e.Y + lblDragger.Top - clickOffsetY;
   }
 }

}

 </source>

Label.Size

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class Form1 : Form {

   private System.Windows.Forms.GroupBox groupBox1;
   private System.Windows.Forms.Label label1;
   private System.Windows.Forms.TextBox textBox1;
   private System.Windows.Forms.Button cmdSetText;
   private System.Windows.Forms.Button cmdSetTextConstraint;
 public Form1() {
       InitializeComponent();
 }
   private void InitializeComponent(){
       this.groupBox1 = new System.Windows.Forms.GroupBox();
       this.label1 = new System.Windows.Forms.Label();
       this.textBox1 = new System.Windows.Forms.TextBox();
       this.cmdSetText = new System.Windows.Forms.Button();
       this.cmdSetTextConstraint = new System.Windows.Forms.Button();
       this.groupBox1.SuspendLayout();
       this.SuspendLayout();
       // 
       // groupBox1
       // 
       this.groupBox1.AutoSize = true;
       this.groupBox1.Controls.Add(this.label1);
       this.groupBox1.Location = new System.Drawing.Point(15, 133);
       this.groupBox1.Margin = new System.Windows.Forms.Padding(20);
       this.groupBox1.Name = "groupBox1";
       this.groupBox1.Size = new System.Drawing.Size(200, 100);
       this.groupBox1.TabIndex = 0;
       this.groupBox1.TabStop = false;
       this.groupBox1.Text = "groupBox1";
       // 
       // label1
       // 
       this.label1.AutoSize = true;
       this.label1.Location = new System.Drawing.Point(17, 25);
       this.label1.Margin = new System.Windows.Forms.Padding(5);
       this.label1.Name = "label1";
       this.label1.Size = new System.Drawing.Size(35, 13);
       this.label1.TabIndex = 0;
       this.label1.Text = "label1";
       // 
       // textBox1
       // 
       this.textBox1.Location = new System.Drawing.Point(15, 12);
       this.textBox1.Multiline = true;
       this.textBox1.Name = "textBox1";
       this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
       this.textBox1.Size = new System.Drawing.Size(200, 47);
       this.textBox1.TabIndex = 1;
       this.textBox1.Text = "The quick brown fox jumps over the lazy dog. The quick brown fox jumps over the l" +
           "azy dog.";
       // 
       // cmdSetText
       // 
       this.cmdSetText.Location = new System.Drawing.Point(50, 65);
       this.cmdSetText.Name = "cmdSetText";
       this.cmdSetText.Size = new System.Drawing.Size(165, 23);
       this.cmdSetText.TabIndex = 2;
       this.cmdSetText.Text = "Set Text";
       this.cmdSetText.UseVisualStyleBackColor = true;
       this.cmdSetText.Click += new System.EventHandler(this.cmdSetText_Click);
       // 
       // cmdSetTextConstraint
       // 
       this.cmdSetTextConstraint.Location = new System.Drawing.Point(50, 91);
       this.cmdSetTextConstraint.Name = "cmdSetTextConstraint";
       this.cmdSetTextConstraint.Size = new System.Drawing.Size(165, 23);
       this.cmdSetTextConstraint.TabIndex = 3;
       this.cmdSetTextConstraint.Text = "Constrain Label and Set Text";
       this.cmdSetTextConstraint.UseVisualStyleBackColor = true;
       this.cmdSetTextConstraint.Click += new System.EventHandler(this.cmdSetTextConstraint_Click);
       // 
       // Form1
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.AutoSize = true;
       this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
       this.ClientSize = new System.Drawing.Size(247, 336);
       this.Controls.Add(this.cmdSetTextConstraint);
       this.Controls.Add(this.cmdSetText);
       this.Controls.Add(this.textBox1);
       this.Controls.Add(this.groupBox1);
       this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
       this.Name = "Form1";
       this.Text = "Form1";
       this.groupBox1.ResumeLayout(false);
       this.groupBox1.PerformLayout();
       this.ResumeLayout(false);
       this.PerformLayout();
   }
   private void cmdSetText_Click(object sender, EventArgs e)
   {
       label1.MaximumSize = new Size(0,0);
       label1.Text = "";
       label1.Text = textBox1.Text;
   }
   private void cmdSetTextConstraint_Click(object sender, EventArgs e)
   {
       label1.MaximumSize = new Size(200,0);
       label1.Text = textBox1.Text;
   }
 [STAThread]
 static void Main()
 {
   Application.EnableVisualStyles();
   Application.Run(new Form1());
 }

}

 </source>

Label.Text

<source lang="csharp"> using System; using System.Windows.Forms; class MainForm : Form {

   private Label label1;
   private TextBox textBox1;
   private Button button1;
   public MainForm()
   {
        this.label1 = new Label();
        this.textBox1 = new TextBox();
        this.button1 = new Button();
        this.SuspendLayout();
        this.label1.Location = new System.Drawing.Point(16, 36);
        this.label1.Name = "label1";
        this.label1.Size = new System.Drawing.Size(128, 16);
        this.label1.TabIndex = 0;
        this.label1.Text = "Please enter your name:"; 
        this.textBox1.Location = new System.Drawing.Point(152, 32);
        this.textBox1.Name = "textBox1";
        this.textBox1.TabIndex = 1;
        this.textBox1.Text = "";
        this.button1.Location = new System.Drawing.Point(109, 80);
        this.button1.Name = "button1";
        this.button1.TabIndex = 2;
        this.button1.Text = "Enter";
        this.button1.Click += new System.EventHandler(this.button1_Click);
        this.ClientSize = new System.Drawing.Size(292, 126);
        this.Controls.Add(this.button1);
        this.Controls.Add(this.textBox1);
        this.Controls.Add(this.label1);
        this.ResumeLayout(false);
    }
    private void button1_Click(object sender, System.EventArgs e)
    {
       System.Console.WriteLine("User entered: " + textBox1.Text);
       MessageBox.Show("Welcome, " + textBox1.Text, "Visual C#");
    }
    [STAThread]
    public static void Main()
    {
       Application.EnableVisualStyles();
       Application.Run(new MainForm());
    }

}

 </source>

Csharp/C Sharp by API/System.Windows.Forms/Label — различия между версиями

Текущая версия на 15:09, 26 мая 2010

Содержание

Label.Background

Label.Click

Label.DataBindings

Label.DoDragDrop

Label.Image

Label.ImageAlign

Label.ImageIndex

Label.ImageList

Label.Localtion

Label.Margin

Label.MouseDown

Label.MouseHover

Label.MouseMove

Label.MouseUp

Label.Size

Label.Text

Навигация

Персональные инструменты

Пространства имён

Варианты

Просмотры

Ещё

Поиск

Разделы

Инструменты

Навигация

Версия 18:31, 26 мая 2010 (просмотреть исходный код) (обсуждение) ← Предыдущая правка	Текущая версия на 15:09, 26 мая 2010 (просмотреть исходный код) Admin (обсуждение \| вклад) м (1 версия)
(нет различий)