关于DataList的嵌套 和（ItemCommand）事件的问题

找到嵌套的DataList（注：因为第一行为标题，所以第一次行循环找不到DataList 所以才要判断if (DataListDepartment != null)）
protected void score_ItemDataBound(object sender, DataListItemEventArgs e)
{
DataList DataListDepartment = e.Item.FindControl("DataListDepartment") as DataList;
if (DataListDepartment != null)
{
DataTable DepartmentSingalInformation = new DataTable();
SqlDataAdapter sda = new SqlDataAdapter("Article_DepartmentSingalInformation", myConnection);
sda.SelectCommand.CommandType = CommandType.StoredProcedure;
sda.SelectCommand.Parameters.Add(new SqlParameter("@articleID", articleID));
sda.SelectCommand.Parameters.Add(new SqlParameter("@CreateDepartment", Convert.ToInt32(DepartmentID.Text)));
sda.Fill(DepartmentSingalInformation);
DataListDepartment.DataSource = DepartmentSingalInformation;
DataListDepartment.DataBind();
}
}

另外在ItemCommand事件中 找到一行和gridview的区别是（GridViewRow WorkGuideGridViewRow = (GridViewRow)((Control)e.CommandSource).Parent.Parent）
protected void score_ItemCommand(object source, DataListCommandEventArgs e)
{
DataListItem DataListItemRow = (DataListItem)((Control)e.CommandSource).Parent;
Label DepartmentID = DataListItemRow.FindControl("DepartmentID") as Label;
Label DepartmentName = DataListItemRow.FindControl("DepartmentName") as Label;
if (e.CommandArgument == "MoreInformation")
{

}
}