So many time we will get the scenario to read the code of .net dll for better understanding the framework. But by default there are no option to read the code in visual studio.
There are so many commercial tool are available for doing this task.But that all are not the free tool. Recently I found one of more stable open source tool to read the .net dll code i.e. ILSpy.
You can download this tool from this url http://ilspy.net/
Steps to use this dll
Step 1: Just download the binary file from the given above URL
Step 2: Extract the folder and click on ILSpy.exe
Now add your dll and click on class as given below image