/// <summary>
/// Removes a layer using layer handle and raises a Layer removed event.
/// </summary>
/// <param name="layerHandle"></param>
public void RemoveLayer(int layerHandle)
{
try
{
MapLayerDictionary[layerHandle].Dispose();
MapLayerDictionary.Remove(layerHandle);
_axmap.RemoveLayer(layerHandle);
_axmap.Redraw();
//fire the layer deleted event
if (LayerRemoved != null)
{
LayerEventArg lp = new LayerEventArg(layerHandle, layerRemoved: true);
LayerRemoved(this, lp);
}
//if the layer removed is the current layer, then make the current layer null
if (CurrentMapLayer != null && layerHandle == _currentMapLayer.Handle)
{
_currentMapLayer = null;
}
}
catch (KeyNotFoundException)
{
//ignore
}
catch (Exception ex)
{
Logger.Log(ex);
}
}
public void SetAsPointLayerFromDatabase(MapLayer ly)
{
ly.IsPointDatabaseLayer = true;
List <int> forRemove = new List <int>();
foreach (MapLayer ml in MapLayerDictionary.Values)
{
if (ml.IsPointDatabaseLayer && ml.Handle != ly.Handle)
{
forRemove.Add(ml.Handle);
}
}
if (forRemove.Count > 0)
{
foreach (var item in forRemove)
{
MapLayerDictionary.Remove(item);
_axmap.RemoveLayer(item);
}
RefreshLayers();
}
}
public bool RemoveLayerByKey(string layerKey)
{
if (LayerDictionary.Count > 0)
{
List <int> layerHandles = new List <int>();
int counter = 0;
foreach (var item in LayerDictionary.Values)
{
if (item.LayerKey == layerKey)
{
layerHandles.Add(item.Handle);
}
}
foreach (var h in layerHandles)
{
MapLayerDictionary[h].Dispose();
MapLayerDictionary.Remove(h);
_axmap.RemoveLayer(h);
if (LayerRemoved != null)
{
LayerEventArg lp = new LayerEventArg(h, layerRemoved: true);
LayerRemoved(this, lp);
}
counter++;
}
if (counter > 0)
{
_axmap.Redraw();
}
return(counter > 0);
}
return(false);
}