Visual Studio LightSwitch is a new tool for building data-driven Silverlight Application using Visual Studio IDE. It automatically generates the User Interface for a DataSource without writing any code. You can write a small amount of code also to meet your requirement.

In my previous chapter “Beginners Guide to Visual Studio LightSwitch (Part – 2)”, I described you how to create a search record window & export the records to Excel Sheet using Visual Studio LightSwitch for Silverlight. I also demonstrated about sorting and navigating records without writing a single line of code.

In this chapter, I will guide you step-by-step to create a DataGrid of records. Here you will know, how to insert/modify/delete records. These all steps are without writing any code. We will use just the tool to improve our existing application. Read more to Learn about it.

I have seen people writing Code Behind a lot while they are working in the MVVM framework. A huge lines of code in their xaml.cs file actually creates problem to the designers to change anything present in the XAML. Why is this so? Because, lots of people don’t know how to use Triggers to call the MVVM methods to complete their business need.

Michael Washington has a nice article on DataTrigger to reduce the Code behind file. It definitely reduces the problem of MVVM that world faces generally. Also, we need to do some additional things to reduce the code behind.

In this article, I will show you how to fire Triggers to call some methods present in your ViewModel, instead of writing in the code behind file. Read more to learn about it.