Block::BorderThickness Property
Gets or sets the border thickness for the element.
Assembly: PresentationFramework (in PresentationFramework.dll)
<object BorderThickness="uniformThickness"/> - or - <object BorderThickness="independentThickness"/> - or - <object BorderThickness="qualifiedUniformThickness"/> - or - <object BorderThickness="qualifiedIndependentThickness"/>
- uniformThickness
String representation of a single Double value to apply uniformly to all four thickness dimensions. For example, a value of "10" is equivalent to a value of "10,10,10,10". An unqualified value is measured in device independent pixels. Strings need not explicitly include decimal points.
- independentThickness
String representation of four ordered Double values corresponding to independent thickness dimensions for left, top, right, and bottom, in this order. The four values must be separated with commas; spaces are not allowed. For example, "5,10,15,20" results in 5 pixels of border to the left of content, 10 pixels of border above content, 15 pixels of border to the right of content, and 20 pixels of border below the content.
- qualifiedUniformThickness
A value described by uniformThickness followed by one of the following unit specifiers: px, in.
px (default) is device-independent units (1/96th inch per unit)
in is inches; 1in==96px
For example, "1in" provides uniform border of 1 inch in all directions.
- qualifiedIndependentThickness
A value described by independentThickness, with each independent value followed by one of the following unit specifiers: px, in.
px (default) is device-independent units (1/96th inch per unit)
in is inches; 1in==96px
For example, "1.5in,0.8in,1.5in,0.8in". Unit specifiers may be mixed or omitted from one or more values.
Identifier field | |
Metadata properties set to true |
The following example shows how to set the BorderThickness attribute of a Block element (Paragraph).
<FlowDocument> <Paragraph Name="par" BorderBrush="Blue" BorderThickness="0.25in" > <Run> Child elements in this Block element (Paragraph) will be surrounded by a blue border. </Run> <LineBreak/><LineBreak/> <Run> This border will be one quarter inch thick in all directions. </Run> </Paragraph> </FlowDocument>
The following figure shows how the preceding example renders.

The following example shows how to set the BorderThickness property programmatically.
Available since 3.0