How to get checked items in a WPF ListBox?
- by Joan Venge
I have a WPF ListBox where I have checkboxes, but what's the way to get the list of items that are checked?
The ListBox is data binded to a Dictionary<T>.
Here is the XAML:
<Window x:Class="WpfApplication.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1"
Height="300"
Width="300">
<Grid Margin="10">
<ListBox ItemsSource="{DynamicResource Nodes}" Grid.IsSharedSizeScope="True" x:Name="MyList">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="Key" />
<ColumnDefinition SharedSizeGroup="Name" />
<ColumnDefinition SharedSizeGroup="Id" />
</Grid.ColumnDefinitions>
<CheckBox Name="NodeItem" Click="OnItemChecked">
<StackPanel Orientation="Horizontal">
<TextBlock Margin="2" Text="{Binding Value.Name}" Grid.Column="1"/>
<TextBlock Margin="2" Text="-" Grid.Column="2"/>
<TextBlock Margin="2" Text="{Binding Value.Id}" Grid.Column="3"/>
</StackPanel>
</CheckBox>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</Window>
