Wednesday, August 13, 2008

Dynamic Data Changes - EnableQueryStringSelection

With the release of .Net 3.5 Framework SP1, the Dynamic Data tools have changed slightly. If you setup a site with a pre-SP1 version of Dynamic Data then this issue may have bitten you.

Runtime error - "Type 'System.Web.DynamicData.DynamicDataManager' does not have a public property named 'EnableQueryStringSelection'."

This flag on the DynamicDataManager enabled that manager to ensure that when a control such as GridView is associated with another control such as DetailsView that one would update when the other changed and vice-versa. One of the downsides of this behaviour is that your associated control had to be supported by the DynamicDataManager to be able to participate in the synchronisation - so many 3rd party controls missed out. Also all registered controls participated in the synchronisation from the Url.

To reenable this behaviour in SP1 use the DynamicDataManager.RegisterControl(Control control, Boolean setSelectionFromUrl) overload when registering the controls. When true is specified that control will get its selection from the Url. So there is now a lot more flexibility in defining which control is managed from the url, instead of all registered controls being managed.

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1 comment:

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