---
title: "How to: Implement a Custom Layout Engine"
ms.date: "03/30/2017"
dev_langs: 
  - "csharp"
  - "vb"
  - "cpp"
helpviewer_keywords: 
  - "layout engines [Windows Forms], custom"
  - "TableLayoutPanel control [Windows Forms], layout engine"
  - "layout engines [Windows Forms], implementing"
  - "FlowLayoutPanel control [Windows Forms], layout engine"
ms.assetid: f91aa91c-29f4-4089-95ca-5d48b774b00e
---
# How to: Implement a Custom Layout Engine
The following code example demonstrates how to create a custom layout engine that performs a simple flow layout. It implements a panel control named `DemoFlowPanel`, which overrides the <xref:System.Windows.Forms.Control.LayoutEngine%2A> property to provide an instance of the `DemoFlowLayout` class.  
  
## Example  
 [!code-cpp[System.Windows.Forms.Layout.LayoutEngine#1](~/samples/snippets/cpp/VS_Snippets_Winforms/System.Windows.Forms.Layout.LayoutEngine/cpp/DemoFlowLayout.cpp#1)]
 [!code-csharp[System.Windows.Forms.Layout.LayoutEngine#1](~/samples/snippets/csharp/VS_Snippets_Winforms/System.Windows.Forms.Layout.LayoutEngine/CS/DemoFlowLayout.cs#1)]
 [!code-vb[System.Windows.Forms.Layout.LayoutEngine#1](~/samples/snippets/visualbasic/VS_Snippets_Winforms/System.Windows.Forms.Layout.LayoutEngine/VB/DemoFlowLayout.vb#1)]  
  
## See also

- <xref:System.Windows.Forms.Layout.LayoutEngine>
- <xref:System.Windows.Forms.Control.LayoutEngine%2A?displayProperty=nameWithType>