public static LayerPropertyForm GetInstance(LayersForm parent, int layerHandle)
{
if (_instance == null)
{
_instance = new LayerPropertyForm(parent, layerHandle);
}
return(_instance);
}
public static LayersForm GetInstance(MapLayersHandler mapLayers, MainWindowForm parent)
{
if (_instance == null)
{
_instance = new LayersForm(mapLayers, parent);
}
return(_instance);
}
public LayerPropertyForm(LayersForm parent, int layerHandle)
{
InitializeComponent();
_parentForm = parent;
_layerHandle = layerHandle;
_mapLayers = _parentForm.MapLayers;
_mapLayers.OnVisibilityExpressionSet += OnVisibilityExpression;
_mapLayer = _parentForm.MapLayers.get_MapLayer(_layerHandle);
_shapefileLayer = _mapLayer.LayerObject as Shapefile;
}
private void LayersForm_FormClosed(object sender, FormClosedEventArgs e)
{
_instance = null;
_mapLayersHandler.LayerRead -= OnLayerRead;
}