Particular fields or variables that are not needed (e.g. ID fields which aren't required for printing) can be suppressed by using the AutoDefineField and AutoDefineVariable events.
ListLabel LL = new
ListLabel();
LL.DataSource = CreateDataSet();
// Add event handling for suppressing fields
LL.AutoDefineField += new AutoDefineElementHandler(LL_AutoDefineField);
// Call
Designer
LL.Design();
LL.Print();
LL.Dispose();
…
void LL_AutoDefineField(object sender, AutoDefineElementEventArgs e)
{
if (e.Name.EndsWith("ID"))
e.Suppress = true;
}