Step 1:- Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Demo.Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script type="text/javascript">
function Validate()
{
var txtNoofColumn
= document.getElementById("txtNoofColumn");
var txtNoofRows
= document.getElementById("txtNoofRows");
if (txtNoofColumn.value
=== "") {
alert("Please enter no of columns.");
document.getElementById("txtNoofColumn").focus();
return false;
}
if (txtNoofRows.value
=== "") {
alert("Please enter no of rows.");
document.getElementById("txtNoofRows").focus();
return false;
}
return true;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Panel ID="Panel1" runat="server">
<fieldset>
<legend>Generate
Table:</legend>
<table>
<tr>
<td class="label">No of
Column*</td>
<td class="labelDescription">
<asp:TextBox ID="txtNoofColumn" Style="text-align: right" runat="server" ClientIDMode="Static">
</asp:TextBox>
</td>
<td class="label">No of
Rows*</td>
<td class="labelDescription">
<asp:TextBox ID="txtNoofRows" Style="text-align: right" runat="server" ClientIDMode="Static">
</asp:TextBox>
</td>
</tr>
<tr>
<td class="labelDescription" colspan="4">
<asp:Button ID="btnGenerate" runat="server" Text="Generate" Font-Bold="true" OnClick="btnGenerate_Click" />
</td>
</tr>
<tr>
<td colspan="4">
<asp:GridView ID="GridView1" runat="server" ClientIDMode="Static">
</asp:GridView>
</td>
</tr>
</table>
</fieldset>
</asp:Panel>
</div>
</form>
</body>
</html>
Step 2:- Default.aspx.cs
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Demo
{
public partial class Default :
System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
btnGenerate.Attributes.Add("onclick", "return
Validate();");
}
}
protected void btnGenerate_Click(object sender, EventArgs e)
{
Generate();
}
protected void Generate()
{
DataTable dt
= new DataTable();
int col
= Convert.ToInt32(txtNoofColumn.Text);
int row
= Convert.ToInt32(txtNoofRows.Text);
for (int i
= 0; i < col; i++)
{
dt.Columns.Add(new DataColumn("", typeof(string)));
}
for (int i
= 0; i < row; i++)
{
dt.Rows.Add();
}
GridView1.DataSource
= dt;
GridView1.DataBind();
int cellCount
= this.GridView1.Rows[0].Cells.Count;
int rowsCount
= this.GridView1.Rows.Count;
TextBox textBox;
for (int i
= 0; i < cellCount; i++)
{
textBox = new TextBox();
textBox.ID = "TextBox_" +
i.ToString();
textBox.Attributes.Add("runat", "server");
textBox.Width = 60;
textBox.BackColor = System.Drawing.Color.Wheat;
//textBox.Style.Add("text-align",
"right");
GridView1.HeaderRow.Cells[i].Controls.Add(textBox);
}
foreach (GridViewRow gridViewRow in GridView1.Rows)
{
for (int i
= 0; i < cellCount; i++)
{
textBox = new TextBox();
textBox.ID = "TextBox_" +
i.ToString();
textBox.Attributes.Add("runat", "server");
textBox.Width = 60;
//textBox.Style.Add("text-align",
"right");
gridViewRow.Cells[i].Controls.Add(textBox);
}
}
}
}
}
Step 3:- Output
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