Select Multiple items in listbox in wpf using c#

Question

I want to set multiple selection in a ListBox using c#.

For example, I have a list of values I want to set these values as selected in the ListBox.

How can I do this?

Nick B · Accepted Answer · 2011-07-03 17:33:41Z

11

MyListBox.SelectedItems.Add(item1);
MyListBox.SelectedItems.Add(item2);
.....

answered Jul 3, 2011 at 17:33

Nick B

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1 Comment

AlpacaMan Over a year ago

What if SelectedItems is null? Is it possible that SelectedItems is null?

Dave Clemmer · Accepted Answer · 2013-02-20 02:06:42Z

7

You did not explain much, hopefully your are doing this the WPF way...

Create an IsSelected property on your data items then give the style to your ListBoxItems that selects them whenever the IsSelected is enabled:

<ListBox.ItemContainerStyle>
    <Style TargetType="ListBoxItem">
        <Setter Property="IsSelected" Value="{Binding IsSelected}"/>
    </Style>
</ListBox.ItemContainerStyle>

Then change the property on your data items, and raise the OnPropertyChanged event.

edited Feb 20, 2013 at 2:06

Dave Clemmer

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answered Jul 3, 2011 at 17:36

Marino Šimić

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