How to achieve communication between ViewModels in WPF MVVM

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HI,
In my view I have a DataGrid and a usercontrol, both are using two different ViewModels. My user control also contains a DataGrid. When I add a new row to my DataGrid in any one of the ViewModel, it should notify the other ViewModel or better pass the newly added DataRow to the other ViewModel. How can I achieve this.

Thanks & Regards,
Ramana

Posted 7-Oct-13 2:58am

Ramana Bellary

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Sergey Alexandrovich Kryukov 7-Oct-13 11:55am

One of the basics of the pattern is that ViewModels should not communicate directly...
—SA

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sthotakura · Accepted Answer · 2013-10-08T16:53:00

Solution 1

You could use Marlon's Mediator[^] or EventAggregator[^] from Microsoft's PRISM Framework. If you Google for Mediator/EventAggregator you get loads of samples on how to use them.

Posted 8-Oct-13 16:53pm

sthotakura