[NullReferenceException: 未将对象引用设置到对象的实例。]
ControlExplorer.samples.MvcMusicStore.Overview.Page_Load(Object sender, EventArgs e) in D:\SpreadStudioV11DEMO升级\ControlExplorer\samples\MvcMusicStore\Overview.aspx.cs:11
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
System.Web.UI.Control.OnLoad(EventArgs e) +97
ControlExplorer.SpreadDemoPage.OnLoad(EventArgs e) in D:\SpreadStudioV11DEMO升级\ControlExplorer\SpreadDemoPage.cs:85
System.Web.UI.Adapters.ControlAdapter.OnLoad(EventArgs e) +14
System.Web.UI.Control.LoadRecursive() +9881253
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693
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