/// <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();
}
}