protected void ddlSection_SelectedIndexChanged(object sender, EventArgs e)
{
//Populated list of Roll numbers based on the Class and Section selected
ddlRollNumber.DataSource = dbops.getRollNos(ddlClasses.SelectedValue, ddlSection.SelectedValue);
ddlRollNumber.DataTextField = "roll_no";
ddlRollNumber.DataValueField = "roll_no";
ddlRollNumber.DataBind();
ddlRollNumber.Items.Insert(0, new ListItem("--Select Roll Number--", "0"));
}
