For using your code i have added a Class in App_Code folder. Then i have made this class as Static
Class
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
/// <summary>
/// Summary description for PivoteDataTable
/// </summary>
public static class PivoteDataTable
{
public static DataTable Pivot(this DataTable tbl)
{
var tblPivot = new DataTable();
tblPivot.Columns.Add(tbl.Columns[0].ColumnName);
for (int i = 1; i < tbl.Rows.Count; i++)
{
tblPivot.Columns.Add(Convert.ToString(i));
}
for (int col = 0; col < tbl.Columns.Count; col++)
{
var r = tblPivot.NewRow();
r[0] = tbl.Columns[col].ToString();
for (int j = 1; j < tbl.Rows.Count; j++)
r[j] = tbl.Rows[j][col];
tblPivot.Rows.Add(r);
}
return tblPivot;
}
}
HTML
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
body
{
font-family: Arial;
font-size: 10pt;
}
table
{
border: 1px solid #ccc;
}
table th
{
background-color: #F7F7F7;
color: #333;
font-weight: bold;
}
table th, table td
{
padding: 5px;
border-color: #ccc;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
Normal GridView
<asp:GridView ID="GridView1" HeaderStyle-BackColor="#3AC0F2" HeaderStyle-ForeColor="White"
runat="server" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="Id" HeaderText="Id" ItemStyle-Width="30" />
<asp:BoundField DataField="Name" HeaderText="Name" ItemStyle-Width="150" />
<asp:BoundField DataField="Country" HeaderText="Country" ItemStyle-Width="150" />
</Columns>
</asp:GridView>
Pivoted GridView
<asp:GridView ID="GridView2" HeaderStyle-BackColor="#3AC0F2" HeaderStyle-ForeColor="White"
runat="server" AutoGenerateColumns="true">
</asp:GridView>
</div>
</form>
</body>
</html>
Namespace
using System.Data;
C#
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
DataTable dt = new DataTable();
dt.Columns.AddRange(new DataColumn[3] { new DataColumn("Id", typeof(int)),
new DataColumn("Name", typeof(string)),
new DataColumn("Country",typeof(string)) });
dt.Rows.Add(1, "John Hammond", "United States");
dt.Rows.Add(2, "Mudassar Khan", "India");
dt.Rows.Add(3, "Suzanne Mathews", "France");
dt.Rows.Add(4, "Robert Schidner", "Russia");
GridView1.DataSource = dt;
GridView1.DataBind();
DataTable dt2 = PivoteDataTable.Pivot(dt);
GridView2.DataSource = dt2;
GridView2.DataBind();
}
}
Screenshot
