ASP.NET

protected void BtnUpdate_Click(object sender, EventArgs e)
{
    dt = (DataTable)Session["data"];
    DataGrid2.DataSource = dt;
    DataGrid2.DataBind();

    //if I will not bind then it will not go in foreach loop.
    //as it will not find any items in the datagrid.

    CheckBox chkSelected = new CheckBox();

    foreach (DataGridItem dgItem in DataGrid2.Items)
    {
        chkSelected = (CheckBox)dgItem.FindControl("chkSelection");

        if (chkSelected.Checked != true)
        {
            TextBox TxtQTY = (TextBox)dgItem.Cells[2].FindControl("TxtQTY");
            string Txt2 = TxtQTY.Text;

        }
        else
        {
            int a = 1;
        }

    }

}