tooltip font in wpf

Question

Hi everybody.

Does anybody know how to change the font of tooltip for ui elements?

Answer 1

FontFamily - Gets or sets the font family of the control. This is a dependency property. (Inherited from Control.)

FontSize - Gets or sets the font size. This is a dependency property. (Inherited from Control.)

FontStretch - Gets or sets the degree to which a font is condensed or expanded on the screen. This is a dependency property. (Inherited from Control.)

FontStyle - Gets or sets the font style. This is a dependency property. (Inherited from Control.)

FontWeight - Gets or sets the weight or thickness of the specified font. This is a dependency property. (Inherited from Control.)

From the WPF documentation

Answer 2

This gives you really big tooltips in all places:

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"&gt;
   <Page.Resources>
      <Style x:Key="{x:Type ToolTip}" TargetType="{x:Type ToolTip}">
         <Setter Property="FontSize" Value="24"/>
      </Style>
   </Page.Resources>
   <Grid>
      <Button Content="Hey" ToolTipService.ToolTip="Hey"/>
   </Grid>
</Page>

If you want to change particular tooltip you can define style closer to that tooltip, or place fontsize directly in the tooltip:

  <Button Content="Hey">
     <ToolTipService.ToolTip>
        <TextBlock FontSize="64" Text="Hey"/>
     </ToolTipService.ToolTip>
  </Button>

Answer 3

Use the FontFamily property on ToolTip

Answer 4

You can do it by adding textblock as tooltip's child element

<TextBox>
    <TextBox.ToolTip>
        <ToolTip>
            <TextBlock FontFamily="Tahoma" FontSize="10" FontWeight="Bold" Text="My tooltip text"/>
        </ToolTip>
    <TextBox.ToolTip>
</TextBox>