pass values between viewmodels in mvvm silverlight

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i am designing a web application in silverlight using mvvm..

my scenario:-
i have a child window where the datas are binded to it..if i click any row in the data grid and click edit button another childwindow should open with textboxes binded from the selected item of data grid...both childwindows have separate viewmodels and models..

my problem:-
after selecting a row in datagrid i click the edit button,but the values are not binding in the textboxes of the selected item... my problem is when i pass selecteditem value from parent viewmodel(datagrid childwindow) to child viewmodel(edit childwindow) the selected items are NULL...

can anybody give me a suggestion for this problem???

Posted 9-Aug-11 21:43pm

aslanshiva

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Abhinav S · Answer 1 · 2011-08-09T22:16:00

Solution 2

You can use an Action delegate to go back to the first view when edit is clicked in the second view.

Posted 9-Aug-11 22:16pm

Abhinav S

Simon Bang Terkildsen · Answer 2 · 2011-08-09T21:55:00

Solution 1

If I understand correctly you do not know in which row an edit button were clicked. In that case you should use the CommandParameter.

HTML

<button commandparameter="{Binding}" ...="" />

Posted 9-Aug-11 21:55pm

Simon Bang Terkildsen

Updated 9-Aug-11 22:36pm

v2