How to call a function from one viewmodel to another viewmodel

Hi ,
How to call a funtion of another viewmodel in a viewmodel . This help would be much appreciated
Thank You
Jeevan Vinay

Please close your previous threads by marking helpful posts as answer before you start a new one.
You need to either get a reference to the second view model from the first one or you could use some kind of messenger or event aggregator to pass a message from the first view model to the second one. The latter approach is preferable as it doesn't create
a tight coupling between the two view model classes.
Please refer to my blog post for more information and an example of how to use Prism's EventAggregator to do this:
http://blog.magnusmontin.net/2014/02/28/using-the-event-aggregator-pattern-to-communicate-between-view-models/
You will need to download and install Prism to be able use the EventAggregator class:
https://www.nuget.org/packages/Prism/
Another popular framework out there is the MvvmLight which contains a Messenger class that works pretty much the same. Andy has provided and example of how to use this one:
http://social.technet.microsoft.com/wiki/contents/articles/26070.communicating-between-classes.aspx
You can download and install MvvmLight via Nuget (Tools->Nuget Package Manager->Package Manager Console in Visual Studio):
https://www.nuget.org/packages/MvvmLight/
Please remember to close your threads by marking all helpful posts as answer and then start a new thread if you have a new question.

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All
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All
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Message was edited by: Bill Hunt to correct formatting

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