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  • Silverlight 4 + RIA Services - Ready for Business: Validating Data

    0 comments  /  posted by  Silverlight Show  on  Mar 24, 2010 (3 months ago)
    To continue his series on RIA Services and Silverlight 4, Brad Abrams decided to take a look at data validation.

    Updating data is great, but when you enable data update you often need to check the data to ensure it is valid.  RIA Services as clean, prescriptive pattern for handling this. First let’s look at what you get for free. The value for any field entered has to be valid for the range of that data type. For example, you never need to write code to ensure someone didn’t type is “forty-two” into a textbox bound to an int field. You also get nice looking and well behaved validation exposure in the UI. 

  • Silverlight 4 vs Flex 4: Data Validation

    0 comments  /  posted by  Silverlight Show  on  Feb 04, 2010 (4 months ago)
    In this post, Alex van Beek takes a look at how data validation is implemented on both Silverlight and Flex.

    In this post I’m again comparing two features of Silverlight and Flex, this time we’re going to take a look at how data validation is implemented on both platforms. This will be a very interesting comparison, since Flex and Silverlight take entirely different approaches. Which one is better? I can let you know in advance that one of the two is a bit broken. Read on to find out which one.

  • 16 comments  /  posted by  Emil Stoychev  on  Mar 19, 2009 (more than a year ago)

    One major point in building line-of-business applications is the data validation. You can’t go without it and that’s where Sillverlight 3 comes in handy. In that release Microsoft added advanced facilities for validating data via two-way databinding.

    Following best practices and patterns you may have heard that it is good to separate your validation logic from the UI. That’s exactly the case with the built-in validation in Silverlight.

    Let’s start with an example of a data form containing validation logic.

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