private void ListSnum() { int Sgrade = Int32.Parse(DDLgrade.SelectedValue); int Sclass = Int32.Parse(DDLclass.SelectedValue); LearnSite.BLL.Students st=new LearnSite.BLL.Students(); DataListsnum.DataSource = st.GetNameNum(Sgrade, Sclass); DataListsnum.DataBind(); }
private void ListSnum() { if (DDLgrade.SelectedValue != null && DDLclass.SelectedValue != null) { int Sgrade = Int32.Parse(DDLgrade.SelectedValue); int Sclass = Int32.Parse(DDLclass.SelectedValue); LearnSite.BLL.Students st = new LearnSite.BLL.Students(); DataListsnum.DataSource = st.GetNameNum(Sgrade, Sclass); DataListsnum.DataBind(); } }