I have a list 'projects' with a DispForm.aspx, and on that DispForm there are associated contacts for that element (contacts list has a direct lookup to the 'projects' list). for the contacts to be filtered by project I set up the connections on the contacts webpart on the DispForm and choose to filter them by the project (lookup column points to ID of projects list).
The filtering works as expected.
But now I have deleted a big structure somewhere else in the site collection. A web with many subwebs in it and many files in them (around 140GB).
After the deletion I noticed that the DispForm of the projects list can no longer be opened. An exception message is displayed:
Server Error in '/' Application. -------------------------------------------------------------------------------- Value does not fall within the expected range. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.ArgumentException: Value does not fall within the expected range. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [ArgumentException: Value does not fall within the expected range.] Microsoft.SharePoint.SPFieldMap.GetColumnNumber(String strFieldName, Boolean bThrow) +28458710 Microsoft.SharePoint.SPListItemCollection.GetColumnNumber(String groupName, Boolean bThrowException) +137 Microsoft.SharePoint.SPListItem.GetValue(SPField fld, Int32 columnNumber, Boolean bRaw, Boolean bThrowException) +1935 Microsoft.SharePoint.SPListItem.get_Item(Guid fieldId) +105 Microsoft.SharePoint.WebPartPages.ListFormRowProviderInterface.FireMainIfAppropriate() +781 Microsoft.SharePoint.WebPartPages.ListFormWebPart.PartCommunicationMain() +141 Microsoft.SharePoint.WebPartPages.Communication.PartCommunicationPhase.Invoke() +0 Microsoft.SharePoint.WebPartPages.Communication.ConnectionRuntime.FirePartCommunicationMain() +31 Microsoft.SharePoint.WebPartPages.SPWebPartManager.ActivateV2Connections() +1190 Microsoft.SharePoint.WebPartPages.SPWebPartManager.ActivateV2ConnectionsAndSharePointDataFetch() +41 Microsoft.SharePoint.WebPartPages.SPWebPartManager.ActivateConnections() +538 System.Web.UI.WebControls.WebParts.WebPartManager.OnPageLoadComplete(Object sender, EventArgs e) +78 System.EventHandler.Invoke(Object sender, EventArgs e) +0 System.Web.UI.Page.OnLoadComplete(EventArgs e) +11852733 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6301
I opened the DispForm.aspx with "Contents=1" in the URL and removed the 'contacts' WebPart. After that the DispForm could be opened again. I then re-added the 'contacts WebPart and set it up like before (same view/columns/server rendering etc.) but did not set up the WebPart connections yet. After that everything was still OK. The DispForm could be opened and the contacts list was displayed with its entries.
Then I also tried to restore the WebPart connection between 'contacts' and 'project' on the DispForm. After I applied the connection setting the page reloaded and showed me the same error message again.
I restored the site again to check if it really is the deletion that triggers this error and indeed it was. Page was OK when the other webs were present - after deletion the error occurs.
So something in the WebPart connection seems to trigger this error. But only now, after deletion of the other webs.
What could this be?