Add full ado.net

This method wasn't implemented in the Silverlight framework. I think, it should be. At the moment, the <Deployment.Parts> section in the AppManifest.xaml is used to get all referenced assemblies. In some cases, it is not possible to (see an example http://bit.ly/9a0BYg ) and the application cannot render visual controls.
If this method was implemented, developers would use it to load referenced assemblies into the application domain and avoid the situation described above.
Thanks!

So that theming can be done easily for cases where you can't use implicit styles. (multiple styles per control type, and some controls are sealed)

Since silverlight 4 now allows accessing OS services through COM, it makes perfect sense to reduce the pain by allowing pinvoke. Mono has proven that this is works across platforms. Not doing this will only make silverlight less appealing for any advanced applications. It should be left upto the application developers to decide whether what they offer is truely platform neutral or for a range of platforms.

If a combobox has focus and the user types, then the first item beginning with that character should be selected.

If WCF for Silverlight had support for NetDataContractSerializer it would be possible to serialize complex object graphs. I know that Rockford Lhotka and the rest of the world :-) would be VERY happy if SL 4 got support for the NetDataContractSerializer.

A SL and NH lover

It would be nice to be able to print directly to the printer without the PrintDialogBox. This is an issue if a User has to print more than 50 Pages per Day and don't like to press additionaly ok for every print job.

Action recordings and coded UI tests were supported in SL4. But with the release of SL5 this functionality has been removed.

As windows does, being able to pause, edit the code and continue the process as this is aweful how many times we have to stop the project, modify the code and restart the application and this is often just to add a line of code.....

Do you use middle click in HTML pages to open a link in new tab? I always use this, and it's very unconvinient that Silverlight doesn't support it. Would be great if SL doesn't break the flow and allow middle click on hyperlinks to act the same as in regular HTML (open in new tab).

The OpenCV library for C/C++ allows users to add motion and object tracking to their applications. This could be used with video input or streaming.

To be able to inherit from a base usercontrol or page and be able to add to or alter the xaml from the base control, with the designer providing full support for this.

Sometimes you really want to block a background thread until an invoked operation is completed. Currently, you can do this manually yourself, but it's a royal pain.

The Silverlight SDK contains several assemblies not deployed with the plugin. Today we need to package those in the xap file. Microsoft sould put them on the CDN they launched for AJAX libraries, and silverlight apps should attempt strong-named download from the CDN if it can't find an assembly in the xap. This will bring down xap size, speed-up download time and enable reuse of already downloaded assemblies easily.

Application domains helps greatly to create persistent and isolated applications with greater granularity and code reusage.

Application code Isolation make it easier to deliver and control of secure, robust application.

Application lvel isolation using Application Domains can increase code security to the new level, f.e. yo can declare code as able of execution only the code provided by the API interfaces, provided to the application isolation code domain, using standart .NET security model.

We need missing:

- AppDomain.Create(...)
- AppDomain.CreateInstance(...),
- AppDomain.CreateInstanceAndUnwrap(...), etc.

WE NEED NORMAL APPLICATION DOMAINS, NOT CUT!!!

WPF use compile text XAML files into binary BAML format before when add them as resources in assembly. This allow some kind of optimization/compression/"simple obfuscation" (at least comments will be removed) for XAML source.

It would be REALLY great if Silverlight support and use this BAML format too.

PS. Yes, I know about XAP file compression but this is not the same.