docs-desktop/dotnet-desktop-guide/framework/winforms/advanced/how-to-draw-a-filled-rectangle-on-a-windows-form.md

title, description, ms.date, dev_langs, f1_keywords, helpviewer_keywords, ms.assetid

title	description	ms.date	dev_langs	f1_keywords	helpviewer_keywords	ms.assetid
How to: Draw a Filled Rectangle on a Windows Form	Learn how to programmatically draw a filled rectangle on a Windows Form. Also learn about compiling your code.	03/30/2017	csharp vb cpp	Graphics.FillRectangle	drawing [Windows Forms], rectangles rectangles [Windows Forms], drawing drawing rectangles	d656a93c-987d-4809-aafd-493fe17450f0

How to: Draw a Filled Rectangle on a Windows Form

This example draws a filled rectangle on a form.

Example

[!code-cppSystem.Drawing.ConceptualHowTos#2] [!code-csharpSystem.Drawing.ConceptualHowTos#2] [!code-vbSystem.Drawing.ConceptualHowTos#2]

Compiling the Code

You cannot call this method in the xref:System.Windows.Forms.Form.Load event handler. The drawn content will not be redrawn if the form is resized or obscured by another form. To make your content automatically repaint, you should override the xref:System.Windows.Forms.Control.OnPaint%2A method.

Robust Programming

You should always call xref:System.IDisposable.Dispose%2A on any objects that consume system resources, such as xref:System.Drawing.Brush and xref:System.Drawing.Graphics objects.

See also

• xref:System.Drawing.Graphics.FillRectangle%2A
• xref:System.Windows.Forms.Control.OnPaint%2A
• Getting Started with Graphics Programming
• Graphics and Drawing in Windows Forms
• Using a Pen to Draw Lines and Shapes
• Brushes and Filled Shapes in GDI+