/// <summary>
/// Adds a layer to the collection
/// </summary>
/// <param name="layer"></param>
/// <returns></returns>
public int Add(GraphLayer layer)
{
int index = this.InnerList.Add(layer);
layer.SetNumber(index);
return(index);
}
/// <summary>
/// Adds a layer to the collection
/// </summary>
/// <param name="layer"></param>
/// <returns></returns>
public int Add(GraphLayer layer)
{
for (int i = 0; i < InnerList.Count; i++)
{
if (layer == InnerList[i])
{
return(i);
}
}
int index = this.InnerList.Add(layer);
layer.SetNumber(index);
return(index);
}