в 15:31, 26 мая 2010

2010-05-26T15:31:19Z

Admin: 1 версия

2010-05-26T11:42:38Z

1 версия

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==Binding database table to ListBox and TextBox, link ListBox and TextBox==

<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.ListBox listBox1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.TextBox textBox2;
private System.Data.DataSet dataSet1;
private System.ruponentModel.Container components = null;
public Form1() {
InitializeComponent();
}
private void InitializeComponent() {
this.listBox1 = new System.Windows.Forms.ListBox();
this.textBox1 = new System.Windows.Forms.TextBox();
this.textBox2 = new System.Windows.Forms.TextBox();
this.dataSet1 = new System.Data.DataSet();
((System.ruponentModel.ISupportInitialize)(this.dataSet1)).BeginInit();
this.SuspendLayout();
this.listBox1.Location = new System.Drawing.Point(8, 8);
this.listBox1.Name = "listBox1";
this.listBox1.Size = new System.Drawing.Size(232, 95);
this.listBox1.TabIndex = 0;
this.textBox1.Location = new System.Drawing.Point(8, 120);
this.textBox1.Name = "textBox1";
this.textBox1.TabIndex = 1;
this.textBox1.Text = "textBox1";
this.textBox2.Location = new System.Drawing.Point(8, 152);
this.textBox2.Name = "textBox2";
this.textBox2.TabIndex = 2;
this.textBox2.Text = "textBox2";
this.dataSet1.DataSetName = "NewDataSet";
this.dataSet1.Locale = new System.Globalization.CultureInfo("en-US");
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(256, 188);
this.Controls.Add(this.textBox2);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.listBox1);
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 firstname, lastname from employee ";
SqlConnection conn = new SqlConnection(connString);
SqlDataAdapter da = new SqlDataAdapter(sql, conn);
da.Fill(dataSet1, "employee");
DataTable dt = dataSet1.Tables["employee"];
listBox1.DataSource = dt;
listBox1.DisplayMember = "firstname";
textBox1.DataBindings.Add("text", dt, "firstname");
textBox2.DataBindings.Add("text", dt, "lastname");
}
}

</source>

==Fill data from Database to ListBox==

<source lang="csharp">

using System;
using System.Diagnostics;
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 {
SqlConnection cn = new SqlConnection("data source=.;database=biblio;uid=admin;pwd=pw");
SqlDataAdapter da = new SqlDataAdapter();
string strSQL = "Select Title, PubID from Titles";
SqlCommand cmd;
SqlDataReader Dr;
System.Windows.Forms.Button Button1 = new System.Windows.Forms.Button();
System.Windows.Forms.ListBox ListBox1 = new System.Windows.Forms.ListBox();
System.Windows.Forms.TextBox TextBox1 = new System.Windows.Forms.TextBox();
public Form1() {
cmd = new SqlCommand(strSQL, cn);
this.SuspendLayout();
this.Button1.Location = new System.Drawing.Point(136, 248);
this.Button1.Size = new System.Drawing.Size(144, 32);
this.Button1.Text = "Get Data";
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.ListBox1.Location = new System.Drawing.Point(48, 64);
this.ListBox1.Size = new System.Drawing.Size(312, 160);
this.TextBox1.Location = new System.Drawing.Point(48, 24);
this.TextBox1.Size = new System.Drawing.Size(328, 20);
this.TextBox1.Text = "Hit";
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(408, 293);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.Button1,
this.ListBox1,
this.TextBox1});
this.ResumeLayout(false);
}
[STAThread]
static void Main() {
Application.Run(new Form1());
}
private void Button1_Click(object sender, System.EventArgs e) {
cn.Open();
cmd.rumandText = strSQL + """ + TextBox1.Text + "%"";
Dr = cmd.ExecuteReader();
ListBox1.Items.Clear();
ListBox1.BeginUpdate();
while (Dr.Read()){
ListBox1.Items.Add(Dr.GetString(0) + " - " + Dr.GetInt32(1).ToString());
}
ListBox1.EndUpdate();
Dr.Close();
}
}
</source>

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Csharp/C Sharp/Database ADO.net/Data Bind ListBox - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия