/// <summary> /// Handles pressing the delete key to remove features from the specified layer. /// </summary> /// <param name="e"></param> protected override void OnKeyDown(KeyEventArgs e) { bool changed = false; if (e.KeyCode == Keys.Delete) { bool selectable = false; foreach (ILayer layer in Map.MapFrame.GetAllLayers()) { IFeatureLayer fl = layer as IFeatureLayer; if (fl == null) { continue; } if (fl.IsWithinLegendSelection()) { selectable = true; fl.RemoveSelectedFeatures(); changed = true; break; } } if (selectable == false) { MessageBox.Show(MessageStrings.MapFunctionSelect_OnKeyDown_No_Deletable_Layers); } } base.OnKeyDown(e); if (changed && Map != null) { Map.MapFrame.Invalidate(); } }