Accesing Items in datalist edittemplate

[Gönen EREN]

I want to populate a datalist in edittemplate
the probleme: i get an error while accesing the datagrid
public void DataListEdit(Object src, DataListCommandEventArgs e )

{

DataList.EditItemIndex=e.Item.ItemIndex;

[...]

DataList
TempDataList=((DataList)e.Item.FindControl("NewsByTypeList"));

[...]

}