SPC110244: Do not dispose SPSite returned by SPControl.GetContextSite

If SPSite is obtained from the SharePoint context objects (GetContextSite method), the calling application should not call the Dispose method on the object.

If the SPSite object is obtained from the SharePoint context objects (GetContextSite method), the calling application should not call the Dispose method on the object. Doing so may cause the SharePoint object model to behave unpredictably or fail. This is due to an internal list that is kept in the SPSite and SPWeb objects derived in this way. Internally, the object model enumerates over this list after page completion to dispose of the objects properly. See sample from MSDN:

Bad Coding Practice

Rule relates to SPDisposeCheckId 'SPDisposeCheckID_210'. To ignore this rule add the attribute '[SPDisposeCheckIgnore(SPDisposeCheckID.SPDisposeCheckID_210, "Caller will dispose")]' to your method.

• Best Practices: Using Disposable Windows SharePoint Services Objects
• SharePoint 2007 and WSS 3.0 Dispose Patterns by Example