Dynamic Ext.NET Gridview

</div>

</div>

</form>

</body>

</html>

Step2: Your .cs file.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using Ext.Net;

using System.Text;

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

{

string connection = System.Configuration.ConfigurationManager.ConnectionStrings["testDatabaseConnectionString"].ToString();

protected void Page_Load(object sender, EventArgs e)

{

if (!X.IsAjaxRequest)

{

this.BindData();

}

}

private void BindData()

{

//Create column name.

ColumnModel columnmodel = new ColumnModel();

string[] columnarray = { "ID", "Name", "City" };

JsonReader jsonreader = new JsonReader();

//Create Dynamic Column Name.

for (int i = 0; i < columnarray.Length; i++)

{

Ext.Net.Column column = new Column();

/*If you wan't to hide the column.*/

if (columnarray[i].ToString() == "City")

{

column.Hidden = true;

}

column.Header = columnarray[i].ToString();

column.DataIndex = columnarray[i].ToString();

this.GridPanel1.ColumnModel.Columns.Add(column);

RecordField recoredfield = new RecordField();

recoredfield.Name = columnarray[i].ToString();

jsonreader.Fields.Add(recoredfield);

}

this.Store1.Reader.Add(jsonreader);

this.Store1.EnableViewState = true;

this.Store1 = this.GridPanel1.GetStore();

using (ExtNetDataDataContext db = new ExtNetDataDataContext(connection))

{

var info = (from a in db.Emp_Msts

select new

{

ID = a.id,

Name = a.emp_name + " " + a.emp_lname,

City = a.city

}

);

if (info != null)

{

if (info.Count() > 0)

{

this.Store1.DataSource = info.ToArray();

this.Store1.DataBind();

}

}

}

if (!this.IsPostBack)

{

CellSelectionModel sm = this.GridPanel1.SelectionModel.Primary as CellSelectionModel;

sm.SelectedCell.ColIndex = 1;

sm.SelectedCell.RowIndex = 1;

}

}

/*Grid View Cell Event*/

protected void Cell_Click(object sender, DirectEventArgs e)

{

CellSelectionModel sm = this.GridPanel1.SelectionModel.Primary as CellSelectionModel;

this.Label1.Html = string.Format("RecordID: {0}<br />Name: {1}<br />Value: {2}<br />Row: {3}<br />Column: {4}", sm.SelectedCell.RecordID, sm.SelectedCell.Name, sm.SelectedCell.Value, sm.SelectedCell.RowIndex.ToString(), sm.SelectedCell.ColIndex.ToString());

}

/*Grid View Command Event.*/

protected void ApplicationAdd(object sender, DirectEventArgs e)

{

string command = e.ExtraParams["command"].ToString();

string RowIndex = e.ExtraParams["rowIndex"].ToString();

this.Label1.Html = "Command Name::" + command + " RowIndex:" + RowIndex;

}

}

For fire the Gridview Command event you must be add   <DirectEvents> in your 

.aspx page.