private void cboFeatureLayer_SelectedIndexChanged(object ssender, EventArgs e) { cboField.Items.Clear(); ILayer featureLayer = _utilities.Layer(cboFeatureLayer.Text); //cboField.Items.AddRange(_utilities.NumberFieldsWithDomain(featureLayer).ToArray()); cboField.Items.AddRange(_utilities.NumberFieldsNotRequired(featureLayer).ToArray()); }