WPF/Silverlight XAML Stretch Text Size to Fit container?

wpf silverlight text size
Mark picture Mark · Jun 11, 2009 · Viewed 22k times · Source

I've just started to play with WPF.

Is it possible to have the size of the text of a Label or TextBlock size itself to fill it's parent container?

Thanks, Mark

Answer

user1228 picture user1228 · Jun 11, 2009

You can use a ViewBox to visually zoom something to fit within its container. The other solutions here work, but they only stretch the control, not its content. The ViewBox will stretch both.

<!-- Big grid, will stretch its children to fill itself -->
<Grid Width="1000" Height="1000">
 <!-- The button is stretched, but its text remains teeny tiny -->
 <Button>
  <!-- The viewbox will stretch its content 
  to fit the final size of the button -->
  <Viewbox
      Margin="4"
      VerticalAlignment="Stretch"
      Height="Auto">
      <!-- The textblock and its contents are 
      stretched to fill its parent -->
      <TextBlock
          Text="Bartenders" />
  </Viewbox>
 </Button>
</Grid>

Related questions

Difference between SelectedItem, SelectedValue and SelectedValuePath

What is the difference betweeen the following: SelectedItem SelectedValue SelectedValuePath All these dependency properties are defined in Selector class. I often confuse SelectedItem with SelectedValue , and SelectedValue with SelectedValuePath. I would like to know the difference between them, and also …

Read More
How do I space out the child elements of a StackPanel?

Given a StackPanel: <StackPanel> <TextBox Height="30">Apple</TextBox> <TextBox Height="80">Banana</TextBox> <TextBox Height="120">Cherry</TextBox> </StackPanel> What's the best way to space out …

Read More
How to automatically select all text on focus in WPF TextBox?

If I call SelectAll from a GotFocus event handler, it doesn't work with the mouse - the selection disappears as soon as mouse is released. EDIT: People are liking Donnelle's answer, I'll try to explain why I did not like …

Read More