Can I change the SelectedItem of ListBox by SelectedIndex? Currently SelectedItem is the observer of SelectedIndex.
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Is this a homework question? It is ok if it is but you need to tag it appropriately. – Chris Porter Nov 23 '11 at 06:14
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There is no information about it in web,if i could find anything i will not ask question here.But all is ok,you can delete this – Javidan Guliyev Nov 23 '11 at 06:17
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@ChrisPorter,can you see http://stackoverflow.com/questions/8131818/intellisense-doesnt-work-for-mvvm-light-toolkit (answer's last comment) i dont want to reask again,but i have no time – Javidan Guliyev Nov 23 '11 at 06:37
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I can see the comment and it looks like adcool2007 has answered it for you with an edit to his answer. – Chris Porter Nov 23 '11 at 15:00
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Yes. Based on the limited info in your question, I think you would need to set up two-way bindings from your listbox's SelectedItem property to a property in your ViewModel.
If you need more info, please provide some more code and I'll take a look.
Adam Rackis
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If I understand your question correct the answer is: Yes. If you set SelectedIndex in your code then SelectedItem will change accordingly.
If I have not understood your question, please explain further.
Björn
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SelectedIndex reflects the index of the item being selected and SelectedItem reflects the selected item itself. So a changes to one of them will change the other one as well.
Fischermaen
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