CODEWITHSUNDEEP
c#wpffontstextboxcode-behind
Sinatr
Sinatr

Reputation: 22008

TextBox set default font

How can I set default font for TextBox?

For TextBlock it's (taken from here):

TextBlock.FontFamilyProperty.OverrideMetadata(typeof(TextBlock),
    new FrameworkPropertyMetadata(new FontFamily("Verdana")));

Trying to do the same for TextBox:

TextBox.FontFamilyProperty.OverrideMetadata(typeof(TextBox),
    new FrameworkPropertyMetadata(new FontFamily("Verdana")));

will throw:

Exception thrown: 'System.Windows.Markup.XamlParseException' in PresentationFramework.dll

Additional information: The type initializer for 'System.Windows.Controls.TextBox' threw an exception. PropertyMetadata is already registered for type 'TextBox'.

Here is repro:

<StackPanel>
    <TextBlock Text="123123" />
    <TextBox Text="123123" BorderThickness="0" Padding="-2,0,-2,0" />
</StackPanel>

Setting TextBlock font as above in window constructor (before InitializeComponent()) works. How to set TextBox default font (it's Segoe by default to me)? I need a solution to set it in as "Verdana" in one place for a whole application.

Intellisense shows:

TextBlock

TextBox

Upvotes: 2

Views: 2182

Answers (3)

Sinatr
Sinatr

Reputation: 22008

My problem is not setting TextBox style alone (sorry for a missleading tittle), but setting it together with TextBlock.

Problem seems related to that those controls don't have common base class to inherit FontFamilyProperty from. TextBox takes one from TextBoxBase and TextBlock from itself. Attempting to set both in either code behind (of window) or window xaml will lead to either exception or nothing (won't work for both).

The trick is to set it in application resources, don't ask me why, but it works then (and works for everything):

<Application.Resources>
    <Style TargetType="TextBox">
        <Setter Property="FontFamily" Value="Verdana" />
    </Style>
    <Style TargetType="TextBlock">
        <Setter Property="FontFamily" Value="Verdana" />
    </Style>
    <!-- not sure if this make sense -->
    <Style TargetType="TextElement">
        <Setter Property="FontFamily" Value="Verdana" />
    </Style>
</Application.Resources>

Following also works (thanks to @bars222's answer):

// font overrides
TextElement.FontFamilyProperty.OverrideMetadata(typeof(TextElement),
    new FrameworkPropertyMetadata(new FontFamily("Verdana")));
TextBlock.FontFamilyProperty.OverrideMetadata(typeof(TextBlock),
    new FrameworkPropertyMetadata(new FontFamily("Verdana")));
Control.FontFamilyProperty.OverrideMetadata(typeof(TextBoxBase),
    new FrameworkPropertyMetadata(new FontFamily("Verdana")));

Upvotes: 0

bars222
bars222

Reputation: 1660

You can change TextBox to TextBoxBase. Somehow it worked for me. 

TextBoxBase.FontFamilyProperty.OverrideMetadata( typeof( TextBoxBase ),
                new FrameworkPropertyMetadata( new FontFamily( "Verdana" ) ) );

Upvotes: 2

Kiel
Kiel

Reputation: 408

For your entire application, you can set it in App.xaml:

<Application.Resources>
    <Style TargetType="TextBox">
        <Setter Property="FontFamily" Value="Verdana" />
        <Setter Property="FontSize" Value="50"></Setter>
    </Style>

    <Style TargetType="TextBlock">
        <Setter Property="FontFamily" Value="Verdana" />
        <Setter Property="FontSize" Value="100"></Setter>
    </Style>
</Application.Resources>

For individual files, you can set this in the XAML after your Window or UserResource opening tag:

<Window.Resources>
    <Style TargetType="TextBlock">
        <Setter Property="FontFamily" Value="Verdana" />
    </Style>
</Window.Resources>

Or if it's a 'UserControl', replace 'Window' with 'UserControl' - you get the idea.

Your basic format would look like:

<Window x:Class="WpfApplicationTestApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
    <Style TargetType="TextBlock">
        <Setter Property="FontFamily" Value="Verdana" />
    </Style>
</Window.Resources>

    <Grid>
        <StackPanel>
            <TextBlock Text="123123" />
            <TextBox Text="123123" BorderThickness="0" Padding="-2,0,-2,0" />
        </StackPanel>
    </Grid>
</Window>

Good luck!

Upvotes: 1

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