自定义控件

在WinForm项目上右键——>添加——>新建项——>找到Windows Forms ——>点击自定义控件——>命名——>添加——>找到定义的控件（命名.cs）——>双击打开——>删除其中的（命名.Designer.cs）的文件——>找到命名文件双击打开——>删除public partial class中的partial以及public MyButtom()
{
InitializeComponent();
}中的InitializeComponent();



  1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Data;
  5 using System.Drawing;
  6 using System.Linq;
  7 using System.Text;
  8 using System.Threading.Tasks;
  9 using System.Windows.Forms;
 10 
 11 namespace WinForm测试
 12 {
 13     public class MyButton : Control
 14     {
 15         public MyButton()
 16         {
 17 
 18         }
 19 
 20         protected override void OnPaint(PaintEventArgs pe)
 21         {
 22             //base.OnPaint(pe);
 23             Graphics g = pe.Graphics;
 24 
 25             if (backgroundImageM != null) //判断是否有背景图
 26             {
 27                 g.DrawImage(backgroundImageM, this.ClientRectangle); //画出背景图参数1背景图，参数2默认的矩形
 28             }
 29             g.FillRectangle(new SolidBrush(backColorM), this.ClientRectangle); //画背景参数1实心的backColorM颜色的，参数2默认的矩形
 30             g.DrawString(textM, fontM, new SolidBrush(FontMColor), this.ClientRectangle); //画文字参数1要画的文字，参数2文字的大小等，参数3文字的颜色，参数4默认的矩形
 31         }
 32 
 33         /// <summary>
 34         /// 控件的默认图片 
 35         /// </summary> 
 36         private Image backgroundImageM = null;
 37         [Description("控件的默认图片")] //在属性中点击此属性的提示
 38         public Image BackgroundImageM
 39         {
 40             get { return backgroundImageM; }
 41             set
 42             {
 43                 backgroundImageM = value;
 44             }
 45         }
 46 
 47         /// <summary>
 48         /// 控件的背景色
 49         /// </summary>
 50         private Color backColorM = Color.Transparent;
 51         [Description("控件的背景色")]
 52         public Color BackColorM
 53         {
 54             get { return backColorM; }
 55             set
 56             {
 57                 backColorM = value;
 58             }
 59         }
 60 
 61         /// <summary>
 62         /// 用于显示文本的字体
 63         /// </summary>
 64         private Font fontM = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
 65         [Description("用于显示文本的字体")]
 66         public Font FontM
 67         {
 68             get { return fontM; }
 69             set
 70             {
 71                 fontM = value;
 72             }
 73         }
 74 
 75         /// <summary>
 76         /// 文字的颜色
 77         /// </summary>
 78         private Color fontMColor = Color.Black;
 79         [Description("文字的颜色")]
 80         public Color FontMColor
 81         {
 82             get { return fontMColor; }
 83             set
 84             {
 85                 fontMColor = value;
 86             }
 87         }
 88 
 89         /// <summary>
 90         /// 控件的文字提示
 91         /// </summary>
 92         private string textM = "";
 93         [Description("显示的文字")]
 94         public string TextM
 95         {
 96             get { return textM; }
 97             set
 98             {
 99                 textM = value;
100             }
101         }
102       
103 
104     }
105 }