.NET Framework 4.0 and Visual Studio 2010 Training Kit

I’m still digesting the changes in .NET 3.5 and SP1, and the guys from Redmond already make a training kit for the next version of the framework. It’s impossible to follow this pace of changes 🙁

The Visual Studio 2010 and .NET Framework 4.0 Training Kit includes presentations, hands-on labs, and demos. This content is designed to help you learn how to utilize the Visual Studio 2010 features and a variety of framework technologies including: C# 4.0, Visual Basic 10, F#, Parallel Computing Platform, WCF, WF, WPF, ASP.NET AJAX 4.0, ASP.NET MVC Dynamic Data.

Get it from http://www.microsoft.com/downloads/details.aspx?FamilyID=752cb725-969b-4732-a383-ed5740f02e93&displaylang=en

NumberField and getElementById

Just a quick lesson learnt today in field:


You want to use JavaScript to validate certain fields when the SharePoint page is in Edit Mode. You use Control.ClientID ASP.NET property to emit the control ID from the server-side code using Page.ClientScript (usually in PreRender event). You’d usually use this ID to access the control on the client side using document.getElementById.


I had issues with NumberField (the server-side control that is used to render a numeric column in SharePoint). Its ClientID property is not the same as the one that is finally rendered back. In fact, it’s a child control, two levels down from the NumberField. The reason for this behaviour is that NumberField is a composite templated control, with multiple child controls that compose it.


Instead of using:




to get your correct control ID for JavaScript validation code on the page.