/// <summary>
/// Adds a new item to workbookPaneHostMap dictionary
/// </summary>
/// <param name="WorkbookName"></param>
/// <param name="layerManagerPaneHost"></param>
void AddToWorkbookPaneHostMap(string WorkbookName, LayerManagerPaneHost layerManagerPaneHost)
{
//TODO: Throw exception
//if (workbookPaneHostMap.ContainsKey(WorkbookName))
workbookPaneHostMap.Add(WorkbookName, layerManagerPaneHost);
}