Question

Is it possible to limit the number of rows a listbox show? Eg. let´s say I have a ItemSource with 100 items, but I only want my listbox to be 10 items high.

Answer 1

This worked for me:

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    // Set height of list box
    this.listbox.Height = (this.listbox.ActualHeight / this.listbox.Items.Count) * 10;
}

Attach this to the Loaded Event of your control (otherwise ActualHeight is not set).

Answer 2

If you want your ListBox to only fit 10 items, having to scroll for the rest, you can simply set the height of ListBoxItems to be the height of the ListBox divided by 10.

If you want to allow the ListBox to resize, you will have to adjust the ListBoxItem height dynamically on each resize event.

Static example:

<ListBox Height="500">
  <ListBox.Resources>
    <Style TargetType="{x:Type ListBoxItem}">
        <Setter Property="Height" Value="50"/>
    </Style>  
    </ListBox.Resources>

  <ListBoxItem>One</ListBoxItem>
  <ListBoxItem>Two</ListBoxItem>
  <ListBoxItem>Three</ListBoxItem>
  <ListBoxItem>Four</ListBoxItem>
  <ListBoxItem>Five</ListBoxItem>
  <ListBoxItem>Six</ListBoxItem>
  <ListBoxItem>Seven</ListBoxItem>
  <ListBoxItem>Eight</ListBoxItem>
  <ListBoxItem>Nine</ListBoxItem>
  <ListBoxItem>Ten</ListBoxItem>
  <ListBoxItem>Eleven</ListBoxItem>
  <ListBoxItem>Twelve</ListBoxItem>
  <ListBoxItem>Thirteen</ListBoxItem>
  <ListBoxItem>Fourteen</ListBoxItem>
  <ListBoxItem>Fifteen</ListBoxItem>
  <!-- etc. -->

</ListBox>

友情链接