private void LoadGroup()
{
using (var helper = new DbHelper.Classes())
{
var groups = helper.ListGroupsOfClass(ClassId);
//if(groups)
}
}
protected void ddlClass_SelectedIndexChanged(object sender, EventArgs e)
{
if (ddlClass.SelectedIndex == 0)
{
pnlGroup.Visible = false;
}
else
{
using (var helper = new DbHelper.Classes())
{
var grps = helper.ListGroupsOfClass(Convert.ToInt32(ddlClass.SelectedValue));
ddlGroupValue.DataSource = grps;
ddlGroupValue.DataBind();
pnlGroup.Visible = grps != null;
}
}
}