BasePrimitive

Updated on Nov 5, 2025

BasePrimitive is a VisualElement descendant that implements the IPrimitive interface. IPrimitive adds a single boolean property ShouldPaint and a PaintPrimitive method that draws a primitive to the screen. Descendants of BasePrimitive override the PaintPrimitive method to represent some atomic visual component like text, fill, checkbox, arrows, etc. The following code is a sample PaintPrimitive method implementation for the TextPrimitive class:

C#

            
public override void PaintPrimitive(IGraphics graphics, float angle, SizeF scale)
{
    Rectangle rect = this.BoundingRectangle;
	graphics.DrawString(this.Text, rect, this.Font, this.ForeColor, this.CreateStringFormat(), this.TextOrientation, this.FlipText);
}

VB.NET

Public Overrides Sub PaintPrimitive(graphics As IGraphics, angle As Single, scale As SizeF)
    Dim rect As Rectangle = Me.BoundingRectangle
    graphics.DrawString(Me.Text, rect, Me.Font, Me.ForeColor, Me.CreateStringFormat(), Me.TextOrientation, Me.FlipText)
End Sub

See Also

• Choosing an Ancestor Class

• Class Hierarchy Overview

• LayoutPanel

• RadComponent, RadComponentElement

• RadControl

• RadElement

• RadItem

• RadObject