At this stage the debugger knows the value returned by the method and $ReturnValue is populated by the debugger. In the picture hereunder, we are at the end of the method (on its ending curly brace). In the picture hereunder, $ReturnValue does not return any value as we have not yet reached the end of the method. The return value will only be visible when we step over to the end of the method (on the curly braces ending the method definition). To open the Autos window while debugging, choose Debug -> Windows -> Autos (or press keyboard shortcut: Ctrl + Alt + V, A).Įxample when Stepping Over to the method end. To open the Immediate window while debugging, choose Debug -> Windows -> Immediate (or press keyboard shortcut: Ctrl + Alt + I). In the Debugger Immediate window, using the $ReturnValue keyword.There are 2 places where we can see the method return value: Note that the return value will be lost after the next Debugger Step Over. Just after the method returns: When we step out of the method (back to the line of code calling the method).Just before the method returns: When we step over to the end of the method (the curly brace at the end of the method definition).The good news is that starting from Visual Studio 2013 we do not have to do such trick anymore we can directly examine the return value of a method even if there is no variable holding the value. If we take the example here above, we would change the method to something like the following to be able to see its return value at debug time: It has unfortunately been a trick many developers have had to use throughout the years. This is less than ideal as it means we have to stop the debugging session, modify code and restart debugging. The only way to see the value before it is returned by the method would be to modify (!) the source code and assign a variable to the result before returning it. Static string Concat(string p1, string p2) Indeed, the debugger would not give a way to see the value returned by the following method: In Visual Studio’s Debugger, it has always been a pain to not be able to see the value returned by a method if no variable was assigned to it.
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