creating button in asp.net

[ganesh22]

Hi,
the below code is for to create dynamically buttons in asp.net. my problem is at the first time i visited the page its working but if i visited the second time that buttons is not clearing. how to clear that?

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;
 
public partial class Default2 : System.Web.UI.Page
{
 
static Button[] btn_arr = new Button[20];
static int btn_count;
 
protected void Page_Load(object sender, EventArgs e)
 {
   try
   {
      if (btn_arr[0] is Button) {
       //for each button saved in our array, recreate it
       foreach (Button button in btn_arr) {
         add_button(button);
       }
      }
    }
    catch (Exception ex)
    {
      lblStatus.Text += ex.Message.ToString();
    }
 }
 
 protected void add_button(Button button)
 {
  try
  {
      TableRow tr = new TableRow();
      TableCell tc = new TableCell();
   tc.Controls.Add(button);
   tr.Cells.Add(tc);
   ctrlTable.Rows.Add(tr);
   //pnlMain.Controls.Add(new LiteralControl("<br>"));
  }
  catch (Exception ex)
  {
   lblStatus.Text += ex.Message.ToString();
  }
 }
 
 protected void btnSubmit_Click(object sender, EventArgs e)
 {
  try
  {
   //create a new instance of the control
   Button new_button = new Button();
   new_button.ID = txtID.Text;
   new_button.ForeColor = System.Drawing.Color.FromName(txtForeColor.Text);
   new_button.Text = txtText.Text;
   //add button to button array
   btn_arr[btn_count++] = new_button;
   //call our add function
   add_button(new_button);
   lblStatus.Text += "Created button " + new_button.ID + " and of color " + new_button.ForeColor;
  }
  catch (Exception ex)
  {
   lblStatus.Text += ex.Message.ToString();
  }
 
 }
 
}

[kenobewan]

Sounds like you are having trouble with postbacks. When you don't want code to execute in the page load everytime there is a postback, you need to preserve it using not page.ispostback method. HTH.