[VB.NET,C#] - 用户自定义控件(含源代码) - DataGridView添加背景图片

来源：http://www.codeproject.com/KB/grid/Datagridview_BackImage.aspx

VB.NET

  
    

   
     
   
     Imports
   
      System.ComponentModel

   
     Imports
   
      System.Drawing


   
     Public
   
      
   
     Class
   
      UserDataGridView
 
   
     Inherits
   
      Windows.Forms.DataGridView
 
   
     Private
   
      m_Image 
   
     As
   
      Image

 
   
     Public
   
      
   
     Sub
   
      
   
     New
   
     ()
 
   
     '
   
     Me.m_Image = Drawing.Image.FromFile("C:\BG.jpg")
   
     

   
      
   
     End Sub
   
     

 
   
     Protected
   
      
   
     Overrides
   
      
   
     Sub
   
      PaintBackground(
   
     ByVal
   
      graphics 
   
     As
   
      Graphics, 
   
     ByVal
   
      clipBounds 
   
     As
   
      Rectangle, 
   
     ByVal
   
      gridBounds 
   
     As
   
      Rectangle)
 
   
     MyBase
   
     .PaintBackground(graphics, clipBounds, gridBounds)
 graphics.DrawImage(
   
     Me
   
     .m_Image, gridBounds)
 
   
     End Sub
   
     

 
   
     '
   
     添加图片属性
   
     

   
      
   
     Public
   
      
   
     Property
   
      BackImage() 
   
     As
   
      Drawing.Image
 
   
     Get
   
     
 
   
     Return
   
      
   
     Me
   
     .m_Image
 
   
     End
   
      
   
     Get
   
     
 
   
     Set
   
     (
   
     ByVal
   
      value 
   
     As
   
      Drawing.Image)
 
   
     Me
   
     .m_Image 
   
     =
   
      value
 
   
     MyBase
   
     .Refresh()
 
   
     End
   
      
   
     Set
   
     
 
   
     End Property
   
     

   
     End Class
  
    

 

 

C#

  
    

   
     
   
     using
   
      System;

   
     using
   
      System.Collections.Generic;

   
     using
   
      System.ComponentModel;

   
     using
   
      System.Data;

   
     using
   
      System.Drawing;

   
     using
   
      System.Linq;

   
     using
   
      System.Text;

   
     using
   
      System.Windows.Forms;


   
     namespace
   
      UserDataGridView
{
 
   
     public
   
      
   
     partial
   
      
   
     class
   
      UserDataGridView : DataGridView
 {
 
   
     private
   
      Image m_Image;

 
   
     public
   
      UserDataGridView()
 {
 InitializeComponent();
 
   
     //
   
     this.m_Image = Image.FromFile("C:\\BG.jpg");
   
     

   
      }

 
   
     ///
   
      
   
     <summary>
   
     重写PaintBackground
   
     </summary>
   
     

   
      
   
     protected
   
      
   
     override
   
      
   
     void
   
      PaintBackground(Graphics graphics, Rectangle clipBounds, Rectangle gridBounds)
 {
 
   
     base
   
     .PaintBackground(graphics, clipBounds, gridBounds);
 graphics.DrawImage(
   
     this
   
     .m_Image, gridBounds);
 }

 
   
     ///
   
      
   
     <summary>
   
     设置背景图片
   
     </summary>
   
     

   
      
   
     public
   
      Image BackImage
 {
 
   
     get
   
     
 {
 
   
     return
   
      
   
     this
   
     .m_Image;
 }
 
   
     set
   
     
 {
 
   
     this
   
     .m_Image 
   
     =
   
      value;
 
   
     base
   
     .Refresh(); 
   
     //
   
      重新加载
   
     

   
      }
 }
 }
}