Silverlight Cream for June 3, 2008 -- #289

Community Blogs — Tue, 03 Jun 2008 17:24:00 GMT

Attached Properties by Illa Iordanov, Animating ListBox Items by Ivan Dragoev, Programmatic DeepZoom

re: New Posts Coming Soon...

johnzabroski — Tue, 01 Jul 2008 21:26:35 GMT

whatever happened to your post on responding to the autogeneratingcolumn event?

re: New Posts Coming Soon...

jan — Wed, 30 Jul 2008 10:26:06 GMT

I've been working with DataGrid and it works pretty well (btw. thanks for your nice posts about grids) as long as you do the basic stuff. However, when trying to use dynamical columns tied with explicit databindings, then things gets much tougher. Imagine you want an explicit databinding to a collection, where the data is supposed to be accessed through index (i.e. first column at index zero, etc), then by Microsoft documentation, the binding path should be something like “Path=property_name[index]” (see http://msdn.microsoft.com/en-us/library/system.windows.data.binding.path.aspx), but the DataGrid implementation throws and “invalid path” exception when using the syntax. It seems the only databinding available to the DataGrid is the simplest form where the binding is the explicit name of the property (simply try the other syntaxes and none is accepted except the simplest one). There are workarounds, but none are as elegant as the one with the index path given by the documentation (i.e. an article by Stephen Toub, Technical Editor for MSDN Magazine, describes how you can add, change or remove properties to an object at runtime, but requires a great deal of work – however it gives the most abstract solution with DataGrid where no work at all needs to be done except feeding it with such objects). Why does not DataGrid implement the databinding path accordingly to the Microsoft documentation? And will it do that for the release?