protected void drp_city_SelectedIndexChanged(object sender, EventArgs e)
{
drp_clg.Items.Clear();
drp_clg.Items.Add(new ListItem("Select College", "0", true));
DataSet ds = bl.get_selected_clg(Convert.ToInt32(drp_city.SelectedValue));
ds.Tables[0].DefaultView.Sort = "clg_name";
ds.Tables[0].Columns.Add("clg_name_code");
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
ds.Tables[0].Rows[i][4] = ds.Tables[0].Rows[i][3] + " (" + ds.Tables[0].Rows[i][2] + ")";
}
drp_clg.DataSource = ds.Tables[0];
drp_clg.DataTextField = "clg_name_code";
drp_clg.DataValueField = "clg_id";
drp_clg.DataBind();
ds.Clear();
}