Block.LineHeight Property

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Gets or sets the height of each line of content.

Namespace:  System.Windows.Documents
Assembly:  System.Windows (in System.Windows.dll)


Public Property LineHeight As Double
public double LineHeight { get; set; }

Property Value

Type: System.Double
The height of each line in pixels. A value of 0 indicates that the line height is determined automatically from the current font characteristics. The default is 0.


Exception Condition

LineHeight is set to a non-positive value.


Dependency property identifier field: LineHeightProperty

Changing the LineHeight value does not change the height of the associated text. Instead, it changes the height of the line that contains the text. To change the size of the text, use the FontSize property.

The layout of lines in a Block element is affected by this property and by the LineStackingStrategy property. This property is used to set the height of each line containing text when LineStackingStrategy property is set to BlockLineHeight or BaselineToBaseline. When LineStackingStrategy property is set to MaxHeight, the larger of calculated LineHeight or set value of LineHeight property is set as the LineHeight.

If LineHeight properties of a RichTextBox and its Block element differs, the LineHeight property of the Block will be honored.

Version Information


Supported in: 5


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.