Silverlight Listbox with multiple selection mode

Question

Silverlight windows phone 7. Listbox with selectionmode multiple.

How to make certain items selected by default. listbx.SelectedItems seems to have only get method.

Answer 1

You have to use SelectionMode as Extended XAML:

<ListBox x:Name="listBox" SelectionMode="Extended">
    <ListBoxItem>First</ListBoxItem>
    <ListBoxItem>Second</ListBoxItem>
    <ListBoxItem>Third</ListBoxItem>
    <ListBoxItem>Fourth</ListBoxItem>
</ListBox>

C#:

        this.listBox.SelectedItems.Add(this.listBox.Items[1]);
        this.listBox.SelectedItems.Add(this.listBox.Items[2]);

HTH