CODEWITHSUNDEEP
c#wpfuser-controls
Joseph jun. Melettukunnel
Joseph jun. Melettukunnel

Reputation: 6397

Let WPF UserControl delete itself and Data-Object which is bound to it?

I've placed in my MainWindow a StackPanel, which gets dynamically on runtime new UserControls (the UserControl is a row of TextBoxes and a button named "Delete"). This is about how I create the UserControls:

PersonObject p = new PersonObject;
List.Add(p);

UserControlLine usrCtrlLine = new UserControlLine();
usrCtrlLine.DataContext = p;

StackPanel.Children.Add(usrCtrlLine);

Now the UserControl contains Textboxes like this:
TextBox TextWrapping="Wrap" Grid.Column="1" Text="{Binding Path=Firstname, Mode=TwoWay}"

My questions are, how can I let the UserControl
- Remove itself from the StackPanel ("get deleted")
- Delete the PersonObject p which is bound to it?

Thanks a lot!

Upvotes: 0

Views: 1592

Answers (1)

Thomas Levesque
Thomas Levesque

Reputation: 292405

I'm not sure I understand what you're trying to do here... You want to display a list of persons in the StackPanel ? You should use a ItemsControl, define its ItemsPanel as a StackPanel, and its ItemTemplate as a UserControlLine :

<ItemsControl ItemsSource="{Binding ListOfPersons}">
  <ItemsControl.ItemsPanel>
    <ItemsPanelTemplate>
      <StackPanel IsItemsHost="True"/>
    </ItemsPanelTemplate>
  </ItemsControl.ItemsPanel>
  <ItemsControl.ItemTemplate>
    <DataTemplate>
      <my:UserControlLine/>
    </DataTemplate>
  </ItemsControl.ItemTemplate>
</ItemsControl>

To delete an item, you just remove it from the collection of persons, and the associated UserControlLine will also be removed from the ItemsControl (the collection should be an ObservableCollection)

Upvotes: 1

Related Questions