How to create and collect textbox value at runtime?

**yogarajan** · Mar 2 '11, 06:43 AM

Hi All

I am create textbox and collect textbox value at runtime using c#

my aspx code

Code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test.aspx.cs" Inherits="test" %>

<!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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Button ID="Button1" runat="server" Text="Add More" OnClick="Button1_Click" />
        <asp:Panel ID="Panel1" runat="server">
            <asp:Table ID="Table1" runat="server">
                <asp:TableRow>
                    <asp:TableCell>Language</asp:TableCell>
                    <asp:TableCell>Read</asp:TableCell>
                    <asp:TableCell>Write</asp:TableCell>
                    <asp:TableCell>Speak</asp:TableCell>
                    
                </asp:TableRow>
                
            </asp:Table>
        </asp:Panel>
        
    </div>
    </form>
</body>
</html>

my cs code

Code:

using System;
using System.Data;
using System.Configuration;
using System.Collections;
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;

public partial class test : System.Web.UI.Page
{
    
    //
    //System.Web.UI.WebControls.TextBox txt1 = new System.Web.UI.WebControls.TextBox();
    
    protected void Page_Load(object sender, EventArgs e)
    {
        //Panel1
        if (!IsPostBack)
        {
            ViewState["count"] = 0;
        }
        else
        {
           // gettextcheckboxval();
        }
        
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        gettextcheckboxval();
        
        ViewState["count"] = Convert.ToInt32(ViewState["count"])+1;
        //Response.Write(Convert.ToString(ViewState["count"]));
       
        for (int i = 0; i < Convert.ToInt32(ViewState["count"]); i++)
        {


            TableRow tr = new TableRow();
            TableCell td1 = new TableCell();
            TableCell td2 = new TableCell();
            TableCell td3 = new TableCell();
            TableCell td4 = new TableCell();

            TextBox textBoxes = new TextBox();
            textBoxes.ID = "TextBox" + i;
            textBoxes.Text = "English";
            

            CheckBox readchk = new CheckBox();
            readchk.ID = "readCheckBox" + i;

            CheckBox writechk = new CheckBox();
            writechk.ID = "writeCheckBox" + i;

            CheckBox speakchk = new CheckBox();
            speakchk.ID = "speakCheckBox" + i;

            td1.Controls.Add(textBoxes);
            td2.Controls.Add(readchk);
            td3.Controls.Add(writechk);
            td4.Controls.Add(speakchk);

            tr.Cells.Add(td1);
            tr.Cells.Add(td2);
            tr.Cells.Add(td3);
            tr.Cells.Add(td4);

            Table1.Rows.Add(tr);


            //Panel1.Controls.Add(txt);
        }
    }

    private void gettextcheckboxval()
    {
        for (int i = 0; i < Convert.ToInt32(ViewState["count"]); i++)
        {
            TextBox txtCtrl = (TextBox)Panel1.FindControl("TextBox" + (i + 1));
            if (txtCtrl != null)
            {

                Response.Write((i+1)+" box value = "+txtCtrl.Text);
                Response.Write("<br>");
            }
            else
            {
                Response.Write("TextBox"+(i+1)+" not found");
                Response.Write("<br>");
            }
        }
    }
}

but my output

TextBox1 not found
TextBox2 not found

what is wrong with my code

Pls guide me

Thanks in Advance