Before Silverlight 4 to bind a data object to the UI and display a message associated with either a null value or if the binding path was wrong, you would need to write a Converter. In Silverlight 4 we find the addition of the markup extensions TargetNullValue and FallbackValue that allows us to display a value when a null value is found in the bound to property and display a value when the property being bound to is not found. This post will show you how to use both markup extensions. Steps: 1....

One of the simplest tasks in business apps is displaying different types of data to be read in the format that the user expects them. In Silverlight versions until Silverlight 4 this has meant using a Converter to format data during binding. This involves writing code for the formatting of the data to bind, instead of simply defining the formatting to use for the data in question where you bind the data to the control. In Silverlight 4 we find the addition of the StringFormat markup extension that...

The Slalom Consulting San Francisco Custom Dev Challenge is live at www.slalomchallenge.com!!!!! Slalom Consulting employs world-class technical consultants who take on ground breaking projects. Please take the Slalom Custom Dev Challenge to see how you compare to the level of knowledge we look for in our technical consultants. The online quiz is focussed on General .NET at this time and will be growing to include other technical topics in the future. This application is written in C#, Silverlight...

So you have the power of SharePoint 2010 as a platform. What are you going to do now? How about build upon the power of the SharePoint product and implement solutions to business problems that are intuitive, easy to use, integrated, have a rich user experience and delivered over the web? Sounds good doesn’t it! Come to the April East Bay .NET User Group meeting and watch to me show you how easy it is to build Silverlight applications on top of SharePoint 2010 that can be quickly developed, delivered...