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Control.FontSize Property

Gets or sets the font size.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

[<TypeConverterAttribute(typeof(FontSizeConverter))>]
[<BindableAttribute(true)>]
[<LocalizabilityAttribute(LocalizationCategory.None)>]
member FontSize : float with get, set
<object FontSize="double"/>
- or –
<object FontSize ="qualifiedDouble"/>

XAML Values

double

Double

A string representation of a Double value. This is interpreted as a device-independent unit (1/96th inch) measurement. Strings need not explicitly include decimal points. For example, a value of 1 is acceptable.

The same Double range restrictions that are mentioned in the Property Value section apply here.

qualifiedDouble

A double value as previously described that is followed by one of these unit declaration strings: px, in, cm, pt.

px (default) is device-independent units (1/96th inch per unit)

in is inches; 1in==96px

cm is centimeters; 1cm==(96/2.54) px

pt is points; 1pt==(96/72) px

Note   In many cases a double may be set to "Auto," but a Control.FontSize does not render if set to "Auto".

Property Value

Type: System.Double
The size of the text in the Control. The default is SystemFonts.MessageFontSize. The font size must be a positive number.

This property only affects a control whose template uses the FontSize property as a parameter. On other controls, this property has no impact.

The following example shows how to set the font size property of a control.

<Button Name="btn3" FontSize="10.0" 
        Click="ChangeFontSize">
  FontSize
</Button>
No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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