When RaisePropertyChanged actually gets executed

Question

c# ,VS 2011 ,Silverlight 4.

when RaisePropertyChanged("...") actually gets executed A, B, or C (see below)

if I have a C# method

public void OnSave()
{
   RaisePropertyChanged("my property");

     (A)   is it executed here or (B) after the method is finished (or (C) we cannot know)?

   bla,bla,bla (more code)





} 

or (B) Here?

Answer 1

Well the implementation of RaisePropertyChanged not withstanding, the execute call will be made immediately before any other code in the block (or option A as you have described.)

...

public void OnSave()
{
    RaisePropertyChanged("my property");

    //.. All following code gets executed AFTER RaisePropertyChanged returns execution
}

The reason I say the implementation not withstanding is because if the method utilizes asynchronous code then it is possible that the return will happen immediately and that the actual work invoked by the method could be completed after other code in the block following RaisePropertyChanged.. I hope that isn't too much information.