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ListItem.LineHeight Property

Gets or sets the height of each line of content.

Namespace:  System.Windows.Documents
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(LengthConverter))]
public double LineHeight { get; set; }
<object LineHeight="double"/>
- or -
<object LineHeight="qualifiedDouble"/>
- or -
<object LineHeight="Auto"/>

XAML Values

double

String representation of a Double value in the range 0.0034 to 160000. An unqualified value is measured in device independent pixels. Strings need not explicitly include decimal points.

qualifiedDouble

A double value as described above, (excepting Auto) followed by one of the following unit specifiers: 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

Auto

Causes the line height to be determined automatically from the current font characteristics. Equivalent to a property value of Double.NaN.

Property Value

Type: System.Double
The height of each line in device independent pixels with a value range of 0.0034 to 160000. A value of Double.NaN (equivalent to an attribute value of "Auto") causes the line height to be determined automatically from the current font characteristics. The default is Double.NaN.

Changing the LineHeight value does not change the height of the associated text; rather, it changes the height of the line that contains the text.

In addition to this property, the layout of lines in a ListItem is affected by its LineStackingStrategy property.

The following example shows how to set the LineHeight attribute of a Block element.


<FlowDocument>
  <Paragraph 
    TextAlignment="Left" 
    Background="AliceBlue"
    FontSize="24"
    LineHeight="48"
  >
    One<LineBreak/>
    two two<LineBreak/>
    Three Three Three<LineBreak/>
    four four four four<LineBreak/>
    Five Five Five Five Five
  </Paragraph>
</FlowDocument>


The following figure shows how the previous example renders.

Screenshot: FlowDocument LineHeight

The following figure shows how the same example renders with the default setting of LineHeight=Double.NaN.

Screenshot: FlowDocument LineHeight default

The following example shows how to set the LineHeight property programmatically.


Paragraph par = new Paragraph();
par.LineHeight = 48;


.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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