asp.net

My problem is that I m unable to add the values of runtime generated textboxes in asp.net ??

I have done it through javascript function but it's value get lost on simple page postback i want to do the same through c# code please help ???

Following are codes i have used

<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"

CodeFile="Default.aspx.cs" Inherits="_Default" %>

Add

||Remove||

href="javascript:sendInfo();">Calculate

ReadOnly="true">

x B

placeholder="B" ReadOnly="true">

x H

placeholder="H" ReadOnly="true"> (In cm)

C# code

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void Button1_Click(object sender, EventArgs e)

{

int count = Convert.ToInt32(txtAdd.Text.Trim());

for (int i = 0; i < count; i++)

{

Label MyLabel = new Label();

TextBox text1 = new TextBox();

MyLabel.ID = "MyLabel" + i + 1;

text1.ID = "Text" + i + 1;

text1.Text = "0";

MyLabel.Text = "L";

pnlTextBoxes.Controls.Add(new LiteralControl(" "));

pnlTextBoxes.Controls.Add(MyLabel);

pnlTextBoxes.Controls.Add(text1);

Label MyLabel2 = new Label();

TextBox text2 = new TextBox();

MyLabel2.ID = "MyLabel" + i + 2;

text2.ID = "Text" + i + 2;

text2.Text = "0";

MyLabel2.Text = "B";

pnlTextBoxes.Controls.Add(new LiteralControl(" "));

pnlTextBoxes.Controls.Add(MyLabel2);

pnlTextBoxes.Controls.Add(text2);

Label MyLabel3 = new Label();

TextBox text3 = new TextBox();

MyLabel3.ID = "MyLabel" + i + 3;

text3.ID = "Text" + i + 3;

text3.Text = "0";

MyLabel3.Text = "H";

pnlTextBoxes.Controls.Add(new LiteralControl(" "));

pnlTextBoxes.Controls.Add(MyLabel3);

pnlTextBoxes.Controls.Add(text3);

Label MyLabel4 = new Label();

TextBox text4 = new TextBox();

MyLabel4.ID = "MyLabel" + i + 4;

text4.ID = "Text" + i + 4;

text4.Text = "0";

MyLabel4.Text = "Pcs";

pnlTextBoxes.Controls.Add(new LiteralControl(" "));

pnlTextBoxes.Controls.Add(MyLabel4);

pnlTextBoxes.Controls.Add(text4);

pnlTextBoxes.Controls.Add(new LiteralControl(" "));

//Add a spacer in the form of an HTML
element.

pnlTextBoxes.Controls.Add(new LiteralControl("
"));

}

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

ali tuncer10y ago
Accepted answer
Dynamically created controls disappear after post back, you will need to use ViewState..
check this link :
https://chiragrdarji.wordpress.com/2009/05/20/maintain-viewstate-for-dynamic-controls-across-the-postback/
Rohit kumar10y ago
thanks bro
Rohit kumar10y ago
thanks bro...
Rohit kumar10y ago
thanks bro...
Shubham Kumar10y ago
Hi, Just Try this link it may help you

http://www.aspsnippets.com/Articles/Get-Value-Text-of-dynamically-created-TextBox-in-ASPNet-using-C-and-VBNet.aspx

http://www.aspdotnet-suresh.com/2012/07/how-to-get-dynamically-created-textbox.html

http://www.c-sharpcorner.com/UploadFile/8911c4/how-to-create-and-read-values-of-dynamic-controls-in-Asp-Net/