public void LoadFoodDropDown(int GroupId)
{
fm.FoodGroupId = GroupId;
FoodDropDown.DataSource = fr.SelectByGroupId(fm);
FoodDropDown.DataBind();
FoodDropDown.DataTextField = "Name";
FoodDropDown.DataValueField = "Id";
FoodDropDown.DataBind();
}
protected void FoodGroupDropDown_SelectedIndexChanged(object sender, EventArgs e)
{
fm = new FoodModel();
fm.FoodGroupId = Convert.ToInt32(FoodGroupDropDown.SelectedItem.Value);
FoodDropDown.DataSource = fr.SelectByGroupId(fm);
FoodDropDown.DataBind();
FoodDropDown.DataTextField = "Name";
FoodDropDown.DataValueField = "Id";
FoodDropDown.DataBind();
FoodDropDown.Items.Insert(0, new ListItem("-- please select --", "0"));
}