public void RemoveAt(int index)
{
Platform.CheckArgumentRange(index, 0, _layers.Count - 1, "index");
LayerGraphic layer = (LayerGraphic)base.Graphics[index];
_layers.Remove(layer.Id);
base.Graphics.Remove(layer);
}
public ILayer Add(string layerId)
{
layerId = FormatLayerId(layerId);
if (_layers.ContainsKey(layerId))
{
throw new ArgumentException("A layer with the same ID already exists.", "layerId");
}
LayerGraphic layer = new LayerGraphic(layerId);
_layers.Add(layerId, layer);
base.Graphics.Add(layer);
return(layer);
}
public ILayer Insert(int index, string layerId)
{
Platform.CheckArgumentRange(index, 0, _layers.Count, "index");
layerId = FormatLayerId(layerId);
if (_layers.ContainsKey(layerId))
{
throw new ArgumentException("A layer with the same ID already exists.", "layerId");
}
LayerGraphic layer = new LayerGraphic(layerId);
_layers.Add(layerId, layer);
base.Graphics.Insert(index, layer);
return(layer);
}
