Timmy's

Dynamic Controls in .Net C#

A Simple example how to create Dynamic Control while looping through a dataset

using System;

using System.Data;

……….

String _con = "uid=dmadmin;pwd=pass123;Initial Catalog=candidate;server=SERVER56;";

DataSet ds = new DataSet();

private void Form1_Load(object sender, EventArgs e)

{

SqlConnection conn = new SqlConnection(_con);

SqlCommand selectCmd = conn.CreateCommand();

selectCmd.CommandText = "SELECT * FROM Questions ";

SqlDataAdapter adp = new SqlDataAdapter(selectCmd);

adp.Fill(ds);

int ly = 148, cy = 165, backly = 251, totally=180;

for (i = 0; i <>

{

CheckBox chk = new CheckBox();

chk.Name = "chk" + ds.Tables[0].Rows[i]["ToDoID"].ToString();

chk.Click += new System.EventHandler(this.chk_CheckStateChanged);

chk.Location = new Point(cx, cy + i * 19);

chk.Size = new Size(236, 15);

chk.Font = new System.Drawing.Font("Tahoma", 8F, System.Drawing.FontStyle.Regular);

this.Controls.Add(chk);

if (ds.Tables[0].Rows[i]["Completed"] != DBNull.Value && ds.Tables[0].Rows[i]["Completed"] != null)

{

chk.Checked = true;

chk.Enabled = false;

}

if (ds.Tables[0].Rows[i]["Title"] != DBNull.Value && ds.Tables[0].Rows[i]["Title"] != null)

chk.Text = ds.Tables[0].Rows[i]["Title"].ToString();

}

}

private void chk_CheckStateChanged(object sender, EventArgs e)

{

MessageBox.Show( ((CheckBox)sender).Name.Replace("chk",""));

}

posted by Timmy K Tom @ 7:41 AM