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Monday, 1 June 2015

Dynamically Add TextBox Control and Detect TextBox Value in Asp.Net Using C#

6/01/2015 - By Pranav Singh 0

This article will show you how you can dynamically add textbox control and detect textbox value in asp.net using c#.net. In this I will create the control and then retrieve the dynamically created textbox control.


<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="WebApplication2.WebForm2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Dynamically Add TextBox Control and Detect TexxtBox Value in Asp.Net Using C#
    </title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Panel ID="Panel1" runat="server">
        </asp:Panel>
        <asp:Button ID="Button2" runat="server" Text="Add Control" OnClick="Button2_Click" />
        <br />
        <br />
        <asp:Label ID="Label1" runat="server" Text=""></asp:Label>
        <br />
        <asp:Button ID="Button1" runat="server" Text="Detect Value" OnClick="Button1_Click" />
    </div>
    </form>
</body>
</html>

In above code I have added a panel control in this I will add dynamic control . on button click I will add the control and detect the value.

Now here is the code for adding and detecting the control.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication2
{
    public partial class WebForm2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button2_Click(object sender, EventArgs e)
        {
            TextBox txtBox = new TextBox();
            txtBox.ID = "txtDynamicControl";
            Panel1.Controls.Add(txtBox);
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            if (Request.Params["txtDynamicControl"] != null)
            {
                Label1.Text = Request.Params["txtDynamicControl"].ToString();

                //Add the control to regrnrtate the control
                TextBox txtBox = new TextBox();
                txtBox.ID = "txtDynamicControl";
                txtBox.Text = Label1.Text;
                Panel1.Controls.Add(txtBox);
            }
          
        }
    }
}

In above code I have dynamically added the control and then on button2 click event I have detected the dynamically added control value.

Now we have done run the control and check the output.



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