private void showWclass()
{
Rblclass.Items.Clear();
string gradeselect = Rblgrade.SelectedValue;
if (!string.IsNullOrEmpty(gradeselect))
{
string yearselect = Rblyear.SelectedValue;
LearnSite.BLL.Works wbll = new LearnSite.BLL.Works();
Rblclass.DataSource = wbll.ShowWclass(Int32.Parse(yearselect), Int32.Parse(gradeselect));
Rblclass.DataTextField = "Wclass";
Rblclass.DataValueField = "Wclass";
Rblclass.DataBind();
if (Rblclass.Items.Count > 0)
{
Rblclass.SelectedIndex = 0;
}
}
}
