Csharp/C Sharp/GUI Windows Form/ProgressBar

Материал из .Net Framework эксперт
Перейти к: навигация, поиск

ProgressBar Host

<source lang="csharp"> /* User Interfaces in C#: Windows Forms and Custom Controls by Matthew MacDonald Publisher: Apress ISBN: 1590590457

  • /

using System.Drawing; using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace ProgressBarHost {

   /// <summary>
   /// Summary description for ProgressBarHost.
   /// </summary>
   public class ProgressBarHost : System.Windows.Forms.Form
   {
       internal System.Windows.Forms.Timer tmrIncrementBar;
       private System.Windows.Forms.Button cmdStart;
       private Progress status;
       private System.ruponentModel.IContainer components;
       public ProgressBarHost()
       {
           //
           // 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();
           this.status = new Progress();
           this.tmrIncrementBar = new System.Windows.Forms.Timer(this.ruponents);
           this.cmdStart = new System.Windows.Forms.Button();
           this.SuspendLayout();
           // 
           // status
           // 
           this.status.Location = new System.Drawing.Point(12, 8);
           this.status.Name = "status";
           this.status.Size = new System.Drawing.Size(272, 88);
           this.status.TabIndex = 0;
           // 
           // tmrIncrementBar
           // 
           this.tmrIncrementBar.Interval = 1000;
           this.tmrIncrementBar.Tick += new System.EventHandler(this.tmrIncrementBar_Tick);
           // 
           // cmdStart
           // 
           this.cmdStart.Location = new System.Drawing.Point(88, 152);
           this.cmdStart.Name = "cmdStart";
           this.cmdStart.Size = new System.Drawing.Size(92, 24);
           this.cmdStart.TabIndex = 1;
           this.cmdStart.Text = "Start";
           this.cmdStart.Click += new System.EventHandler(this.cmdStart_Click);
           // 
           // ProgressBarHost
           // 
           this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
           this.ClientSize = new System.Drawing.Size(292, 194);
           this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                         this.cmdStart,
                                                                         this.status});
           this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
           this.Name = "ProgressBarHost";
           this.Text = "ProgressBarHost";
           this.ResumeLayout(false);
       }
       #endregion
       /// <summary>
       /// The main entry point for the application.
       /// </summary>
       [STAThread]
       static void Main() 
       {
           Application.Run(new ProgressBarHost());
       }
       private void tmrIncrementBar_Tick(object sender, System.EventArgs e)
       {
           status.PerformStep();
           if (status.Maximum == status.Value)
           {
               tmrIncrementBar.Enabled = false;
           }
       }
       private void cmdStart_Click(object sender, System.EventArgs e)
       {
           tmrIncrementBar.Enabled = false;
           status.Value = 0;
           status.Maximum = 20;
           status.Step = 1;
           tmrIncrementBar.Enabled = true;
       }
   }
   /// <summary>
   /// Summary description for Progress.
   /// </summary>
   public class Progress : System.Windows.Forms.UserControl
   {
       internal System.Windows.Forms.Label lblProgress;
       internal System.Windows.Forms.ProgressBar Bar;
       /// <summary> 
       /// Required designer variable.
       /// </summary>
       private System.ruponentModel.Container components = null;
       public Progress()
       {
           // This call is required by the Windows.Forms Form Designer.
           InitializeComponent();
           // TODO: Add any initialization after the InitForm 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 Component 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.lblProgress = new System.Windows.Forms.Label();
           this.Bar = new System.Windows.Forms.ProgressBar();
           this.SuspendLayout();
           // 
           // lblProgress
           // 
           this.lblProgress.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
               | System.Windows.Forms.AnchorStyles.Right);
           this.lblProgress.Location = new System.Drawing.Point(5, 46);
           this.lblProgress.Name = "lblProgress";
           this.lblProgress.Size = new System.Drawing.Size(152, 16);
           this.lblProgress.TabIndex = 3;
           this.lblProgress.Text = "0% Done";
           this.lblProgress.TextAlign = System.Drawing.ContentAlignment.TopCenter;
           // 
           // Bar
           // 
           this.Bar.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
               | System.Windows.Forms.AnchorStyles.Right);
           this.Bar.Location = new System.Drawing.Point(5, 6);
           this.Bar.Name = "Bar";
           this.Bar.Size = new System.Drawing.Size(154, 32);
           this.Bar.TabIndex = 2;
           // 
           // Progress
           // 
           this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                         this.lblProgress,
                                                                         this.Bar});
           this.Name = "Progress";
           this.Size = new System.Drawing.Size(164, 68);
           this.ResumeLayout(false);
       }
       #endregion
       
       [Description("The current value (between 0 and Maximum) which sets the position of the progress bar"), 
       Category("Behavior"), DefaultValue(0)]
       public int Value
       {
           get
           {
               return Bar.Value;
           }
           set
           {
               Bar.Value = value;
               UpdateLabel();
           }
       }
       public int Maximum
       {
           get
           {
               return Bar.Maximum;
           }
           set
           {
               Bar.Maximum = value;
           }
       }
       public int Step
       {
           get
           {
               return Bar.Step;
           }
           set
           {
               Bar.Step = value;
           }
       }
       public void PerformStep()
       {
           Bar.PerformStep();
           UpdateLabel();
       }
       private void UpdateLabel()
       {
           lblProgress.Text = (Math.Round((decimal)(Bar.Value * 100) /
               Bar.Maximum)).ToString();
           lblProgress.Text += "% Done";
       }
   }

}


      </source>


ProgressBar in C#

<source lang="csharp"> // I am trying to use Class ProgressBar in C# // Editor Used : Antechinus http://www.c-point.ru // Dt. 9th Jan. 2001 // ... Special thanks Saurabh for help & guidance ... Thanks! someday i would // do the way you do.... programming // ... thanks Mahesh for loading my codes. Your site rules! // ... thanks to you for reading it you know better who you are :) // if you have any comments or doubts or whatever please don"t // hesitate to e-mail me.

   using System;
   using System.Drawing;
   using System.ruponentModel;
   using System.Windows.Forms;
   /// <summary>
   ///    Summary description for Win32Form2.
   /// </summary>
   public class Win32Form2 : System.Windows.Forms.Form {
       /// <summary>
       ///    Required by the Win Forms designer
       /// </summary>
       private System.ruponentModel.Container components;
       private System.Windows.Forms.TextBox textBox1;
       private System.Windows.Forms.Label label1;
       private System.Windows.Forms.Button button1;
       private System.Windows.Forms.ProgressBar progressBar1;
       public Win32Form2() {
           // Required for Win Form Designer support
           InitializeComponent();
       }
       /// <summary>
       ///    The main entry point for the application.
       /// </summary>
       public static void Main(string[] args) {
           Application.Run(new Win32Form2());
       }
       /// <summary>
       ///    Required method for Designer support - do not modify
       ///    the contents of this method with an editor
       /// </summary>
       private void InitializeComponent() {
           this.ruponents = new System.ruponentModel.Container();
           this.label1 = new System.Windows.Forms.Label();
           this.progressBar1 = new System.Windows.Forms.ProgressBar();
           this.button1 = new System.Windows.Forms.Button();
           this.textBox1 = new System.Windows.Forms.TextBox();
           
           //@design this.TrayHeight = 0;
           //@design this.TrayLargeIcon = false;
           //@design this.TrayAutoArrange = true;
           label1.Location = new System.Drawing.Point(32, 40);
           label1.Text = "Progress Value";
           label1.Size = new System.Drawing.Size(88, 24);
           label1.TabIndex = 2;
           
           progressBar1.Maximum = 10;
           progressBar1.Location = new System.Drawing.Point(8, 312);
           progressBar1.Minimum = 0;
           progressBar1.TabIndex = 0;
           progressBar1.Value = 0;
   
           //We have calculated the excat size which will result in only 20 boxes to be drawn
           
           progressBar1.Size = new System.Drawing.Size(520, 40);
           progressBar1.Step = 1;
           
           button1.Location = new System.Drawing.Point(152, 168);
           button1.Size = new System.Drawing.Size(144, 48);
           button1.TabIndex = 1;
           button1.Text = "button1";
           button1.Click += new System.EventHandler(button1_Click);
           
           textBox1.Location = new System.Drawing.Point(136, 40);
           textBox1.Text = "0";
           textBox1.TabIndex = 3;
           textBox1.Size = new System.Drawing.Size(184, 20);
           this.Text = "Win32Form2";
           this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
           this.ClientSize = new System.Drawing.Size(616, 393);
           this.Click += new System.EventHandler(Win32Form2_Click);
           
           this.Controls.Add(textBox1);
           this.Controls.Add(label1);
           this.Controls.Add(button1);
           this.Controls.Add(progressBar1);
       }
       protected void button1_Click(object sender, System.EventArgs e) {
       
           //this checking is automatically done as stated in the Ref Documentation 
           //but it does not work , BUGssssss 
           //so we have to do it shhhhh .... 
           if (progressBar1.Value == progressBar1.Maximum){
               progressBar1.Value =  progressBar1.Minimum;
           }
           progressBar1.PerformStep();
           textBox1.Text=progressBar1.Value.ToString() ; // Displays the values of progressbar in textbox
   
       }
       protected void Win32Form2_Click(object sender, System.EventArgs e) {
       }
   }


      </source>