FlowDocument::LineHeight Property
Gets or sets the height of each line of content.
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: property double LineHeight { double get (); void set (double value); }
<object LineHeight="double"/> - or - <object LineHeight="qualifiedDouble"/> - or - <object LineHeight="Auto"/>
XAML Values
Property Value
Type: System::DoubleThe height of each line, in device independent pixels, in the range 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.
| Exception | Condition |
|---|---|
| ArgumentException | LineHeight is set to a non-positive value. |
Changing this value does not change the height of the associated text; rather, it changes the height of the line that contains the text. To change the size of the text, use the FontSize property.
In addition to this property, the layout of lines in a FlowDocument is affected by its LineStackingStrategy property.
The following example shows how to set the LineHeight attribute of a FlowDocument element.
<FlowDocumentReader> <FlowDocument FontSize="24" LineHeight="48" > <Paragraph TextAlignment="Left" Background="AliceBlue"> One<LineBreak/> two two<LineBreak/> Three Three Three<LineBreak/> four four four four<LineBreak/> Five Five Five Five Five </Paragraph> </FlowDocument> </FlowDocumentReader>
The following figure shows how the preceding FlowDocument renders.

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

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