Border

The Border element adds a solid border around its content with configurable thickness and color. It's commonly used to visually separate or highlight content sections.

It is virtual and doesn't affect layout calculations or content positioning. Half of the border thickness extends inward from the content edge, and half extends outward.

API

Thickness

Method	Description
Border	Sets a uniform border (all edges) for its content.
BorderVertical	Sets a vertical border (left and right) for its content.
BorderHorizontal	Sets a horizontal border (top and bottom) for its content.
BorderLeft	Sets a border on the left side of its content.
BorderRight	Sets a border on the right side of its content.
BorderTop	Sets a border on the top side of its content.
BorderBottom	Sets a border on the bottom side of its content.

Each method requires a thickness value as a parameter. Optionally, you can specify the unit value (default is Unit.Points).

container.Border(1);
container.Border(1, Unit.Millimeters);

TIP

Learn more about supported units in the Lenght unit types section.

Color

Method	Description
BorderColor	Adjusts color of the border element.

TIP

Learn more about supported color formats and predefined color palettes in the Colors section.

Example

Simple border

container
    .Width(150)
    .Padding(25)  
    .BorderLeft(4)
    .BorderTop(6)
    .BorderRight(8) 
    .BorderBottom(10)
    .BorderColor(Colors.LightBlue.Darken3)
    .Background(Colors.Grey.Lighten3)
    .Padding(25) 
    .Text("Text");

Multiple borders

Use the Container method to apply multiple borders to the same content.

container
    .Width(150)
    .Padding(25)

    .BorderTop(5)
    .BorderColor(Colors.LightBlue.Darken3)

    .Container()

    .BorderBottom(10)
    .BorderColor(Colors.LightBlue.Darken1)
    
    .Background(Colors.Grey.Lighten3)
    .Padding(25)
    .Text("Text")
    .FontSize(20);