ArcMap add-in工程如何调用Dockable Window？

【解决办法】：
（1）Esri提供的关于Dockable window的示例工程位于： 
..\DeveloperKit10.3\Samples\ArcObjectsNet\SelectionAddInSample\CSharp 
该示例中用到了Dockable Window，可供参考。 
（2）可以通过UID获取到悬浮窗，如：http://help.arcgis.com/en/sdk/ ... 00000 
如获取创建新要素悬浮窗： 
var dockableWindowManager = (IDockableWindowManager)_app; 
var uid = new UIDClass() { Value = esriEditor.CreateFeatureDockWin }; 
var window = dockableWindowManager.GetDockableWindow(uid); 
window.Show(true);
如果是工程中调用自定义的Dockable Window可以这样调用： 
UID dockWinID = new UIDClass(); 
dockWinID.Value = ThisAddIn.IDs.DockableWindow1; 
s_dockWindow = ArcMap.DockableWindowManager.GetDockableWindow(dockWinID); 
if(s_dockWindow!=null) 
s_dockWindow.Show(true);