Question

I’m trying to initiate an action based on a selection in a ComboBox I created in WPF. I’m pretty new to WPF and C#. My ComboBox has

<ComboBox x:Name="SampleComboBox" Width="100" ItemsSource="{Binding Path=NameList}" />

Where NameList is a List property in the code behind. Now I want to generate an action based on the selection in the ComboBox and not sure where to start. Thanks.

Answer 1

You’ll need to add a method to handle the SelectionChanged event. You can either do this in code:

this.MyComboBox.SelectionChanged += new SelectionChangedEventHandler(OnSelectionChanged);

or in XAML:

<ComboBox x:Name="SampleComboBox" Width="100" 
ItemsSource="{Binding Path=NameList}" SelectionChanged="OnSelectionChanged" />

where you can then do something with the selected items:

private void OnSelectionChanged(object sender, SelectionChangedEventArgs e) 
{
     ComboBoxItem cbi = (ComboBoxItem) (sender as ComboBox).SelectedItem;
}