SPC110245: Do not dispose SPWeb returned by SPControl.GetContextWeb

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

If the SPWeb object is obtained from the SharePoint context objects (GetContextWeb 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