（五）c#Winform自定义控件-复选框-HZHControls

官网

http://www.hzhcontrols.com

前提

入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。

GitHub：https://github.com/kwwwvagaa/NetWinformControl

码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git

如果觉得写的还行，请点个 star 支持一下吧

欢迎前来交流探讨：企鹅群568015492

准备工作

准备4个图片，分别对应选中，没选中，选中禁用，没选中禁用

开始

新增一个用户控件，命名UCCheckBox

属性如下

  1 [Description("选中改变事件"), Category("自定义")]
  2         public event EventHandler CheckedChangeEvent;
  3 
  4         [Description("字体"), Category("自定义")]
  5         public override Font Font
  6         {
  7             get
  8             {
  9                 return base.Font;
 10             }
 11             set
 12             {
 13                 base.Font = value;
 14                 label1.Font = value;
 15             }
 16         }
 17 
 18         private Color _ForeColor = Color.FromArgb(62, 62, 62);
 19         [Description("字体颜色"), Category("自定义")]
 20         public new Color ForeColor
 21         {
 22             get { return _ForeColor; }
 23             set
 24             {
 25                 label1.ForeColor = value;
 26                 _ForeColor = value;
 27             }
 28         }
 29         private string _Text = "复选框";
 30         [Description("文本"), Category("自定义")]
 31         public string TextValue
 32         {
 33             get { return _Text; }
 34             set
 35             {
 36                 label1.Text = value;
 37                 _Text = value;
 38             }
 39         }
 40         private bool _checked = false;
 41         [Description("是否选中"), Category("自定义")]
 42         public bool Checked
 43         {
 44             get
 45             {
 46                 return _checked;
 47             }
 48             set
 49             {
 50                 if (_checked != value)
 51                 {
 52                     _checked = value;
 53                     if (base.Enabled)
 54                     {
 55                         if (_checked)
 56                         {
 57                             panel1.BackgroundImage = Properties.Resources.checkbox1;
 58                         }
 59                         else
 60                         {
 61                             panel1.BackgroundImage = Properties.Resources.checkbox0;
 62                         }
 63                     }
 64                     else
 65                     {
 66                         if (_checked)
 67                         {
 68                             panel1.BackgroundImage = Properties.Resources.checkbox10;
 69                         }
 70                         else
 71                         {
 72                             panel1.BackgroundImage = Properties.Resources.checkbox00;
 73                         }
 74                     }
 75 
 76                     if (CheckedChangeEvent != null)
 77                     {
 78                         CheckedChangeEvent(this, null);
 79                     }
 80                 }
 81             }
 82         }
 83 
 84         public new bool Enabled
 85         {
 86             get
 87             {
 88                 return base.Enabled;
 89             }
 90             set
 91             {
 92                 base.Enabled = value;
 93                 if (value)
 94                 {
 95                     if (_checked)
 96                     {
 97                         panel1.BackgroundImage = Properties.Resources.checkbox1;
 98                     }
 99                     else
100                     {
101                         panel1.BackgroundImage = Properties.Resources.checkbox0;
102                     }
103                 }
104                 else
105                 {
106                     if (_checked)
107                     {
108                         panel1.BackgroundImage = Properties.Resources.checkbox10;
109                     }
110                     else
111                     {
112                         panel1.BackgroundImage = Properties.Resources.checkbox00;
113                     }
114                 }
115             }
116         }

再来一个改变选中状态的事件

1   private void CheckBox_MouseDown(object sender, MouseEventArgs e)
2         {
3             Checked = !Checked;
4         }

下面看下完整代码

  1 // 版权所有  黄正辉  交流群：568015492   QQ：623128629
  2 // 文件名称：UCCheckBox.cs
  3 // 创建日期：2019-08-15 15:58:34
  4 // 功能描述：CheckBox
  5 // 项目地址：https://gitee.com/kwwwvagaa/net_winform_custom_control
  6 using System;
  7 using System.Collections.Generic;
  8 using System.ComponentModel;
  9 using System.Drawing;
 10 using System.Data;
 11 using System.Linq;
 12 using System.Text;
 13 using System.Windows.Forms;
 14 
 15 namespace HZH_Controls.Controls
 16 {
 17     [DefaultEvent("CheckedChangeEvent")]
 18     public partial class UCCheckBox : UserControl
 19     {
 20         [Description("选中改变事件"), Category("自定义")]
 21         public event EventHandler CheckedChangeEvent;
 22 
 23         [Description("字体"), Category("自定义")]
 24         public override Font Font
 25         {
 26             get
 27             {
 28                 return base.Font;
 29             }
 30             set
 31             {
 32                 base.Font = value;
 33                 label1.Font = value;
 34             }
 35         }
 36 
 37         private Color _ForeColor = Color.FromArgb(62, 62, 62);
 38         [Description("字体颜色"), Category("自定义")]
 39         public new Color ForeColor
 40         {
 41             get { return _ForeColor; }
 42             set
 43             {
 44                 label1.ForeColor = value;
 45                 _ForeColor = value;
 46             }
 47         }
 48         private string _Text = "复选框";
 49         [Description("文本"), Category("自定义")]
 50         public string TextValue
 51         {
 52             get { return _Text; }
 53             set
 54             {
 55                 label1.Text = value;
 56                 _Text = value;
 57             }
 58         }
 59         private bool _checked = false;
 60         [Description("是否选中"), Category("自定义")]
 61         public bool Checked
 62         {
 63             get
 64             {
 65                 return _checked;
 66             }
 67             set
 68             {
 69                 if (_checked != value)
 70                 {
 71                     _checked = value;
 72                     if (base.Enabled)
 73                     {
 74                         if (_checked)
 75                         {
 76                             panel1.BackgroundImage = Properties.Resources.checkbox1;
 77                         }
 78                         else
 79                         {
 80                             panel1.BackgroundImage = Properties.Resources.checkbox0;
 81                         }
 82                     }
 83                     else
 84                     {
 85                         if (_checked)
 86                         {
 87                             panel1.BackgroundImage = Properties.Resources.checkbox10;
 88                         }
 89                         else
 90                         {
 91                             panel1.BackgroundImage = Properties.Resources.checkbox00;
 92                         }
 93                     }
 94 
 95                     if (CheckedChangeEvent != null)
 96                     {
 97                         CheckedChangeEvent(this, null);
 98                     }
 99                 }
100             }
101         }
102 
103         public new bool Enabled
104         {
105             get
106             {
107                 return base.Enabled;
108             }
109             set
110             {
111                 base.Enabled = value;
112                 if (value)
113                 {
114                     if (_checked)
115                     {
116                         panel1.BackgroundImage = Properties.Resources.checkbox1;
117                     }
118                     else
119                     {
120                         panel1.BackgroundImage = Properties.Resources.checkbox0;
121                     }
122                 }
123                 else
124                 {
125                     if (_checked)
126                     {
127                         panel1.BackgroundImage = Properties.Resources.checkbox10;
128                     }
129                     else
130                     {
131                         panel1.BackgroundImage = Properties.Resources.checkbox00;
132                     }
133                 }
134             }
135         }
136         public UCCheckBox()
137         {
138             InitializeComponent();
139         }
140 
141         private void CheckBox_MouseDown(object sender, MouseEventArgs e)
142         {
143             Checked = !Checked;
144         }
145     }
146 }

View Code

 1 namespace HZH_Controls.Controls
 2 {
 3     partial class UCCheckBox
 4     {
 5         /// <summary> 
 6         /// 必需的设计器变量。
 7         /// </summary>
 8         private System.ComponentModel.IContainer components = null;
 9 
10         /// <summary> 
11         /// 清理所有正在使用的资源。
12         /// </summary>
13         /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
14         protected override void Dispose(bool disposing)
15         {
16             if (disposing && (components != null))
17             {
18                 components.Dispose();
19             }
20             base.Dispose(disposing);
21         }
22 
23         #region 组件设计器生成的代码
24 
25         /// <summary> 
26         /// 设计器支持所需的方法 - 不要
27         /// 使用代码编辑器修改此方法的内容。
28         /// </summary>
29         private void InitializeComponent()
30         {
31             this.panel1 = new System.Windows.Forms.Panel();
32             this.label1 = new System.Windows.Forms.Label();
33             this.SuspendLayout();
34             // 
35             // panel1
36             // 
37             this.panel1.BackgroundImage = global::HZH_Controls.Properties.Resources.checkbox0;
38             this.panel1.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Zoom;
39             this.panel1.Dock = System.Windows.Forms.DockStyle.Left;
40             this.panel1.Location = new System.Drawing.Point(1, 1);
41             this.panel1.Name = "panel1";
42             this.panel1.Size = new System.Drawing.Size(18, 28);
43             this.panel1.TabIndex = 0;
44             this.panel1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.CheckBox_MouseDown);
45             // 
46             // label1
47             // 
48             this.label1.Dock = System.Windows.Forms.DockStyle.Fill;
49             this.label1.Font = new System.Drawing.Font("微软雅黑", 12F);
50             this.label1.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(62)))), ((int)(((byte)(62)))), ((int)(((byte)(62)))));
51             this.label1.Location = new System.Drawing.Point(19, 1);
52             this.label1.Name = "label1";
53             this.label1.Padding = new System.Windows.Forms.Padding(5, 0, 0, 0);
54             this.label1.Size = new System.Drawing.Size(213, 28);
55             this.label1.TabIndex = 1;
56             this.label1.Text = "复选框";
57             this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
58             this.label1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.CheckBox_MouseDown);
59             // 
60             // UCCheckBox
61             // 
62             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
63             this.BackColor = System.Drawing.Color.Transparent;
64             this.Controls.Add(this.label1);
65             this.Controls.Add(this.panel1);
66             this.Name = "UCCheckBox";
67             this.Padding = new System.Windows.Forms.Padding(1);
68             this.Size = new System.Drawing.Size(233, 30);
69             this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.CheckBox_MouseDown);
70             this.ResumeLayout(false);
71 
72         }
73 
74         #endregion
75 
76         private System.Windows.Forms.Panel panel1;
77         private System.Windows.Forms.Label label1;
78     }
79 }

View Code

用处及效果

用途：复选框

效果：

最后的话

如果你喜欢的话，请到 https://gitee.com/kwwwvagaa/net_winform_custom_control 点个星星吧

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原文地址：https://www.cnblogs.com/bfyx/p/11362124.html

（五）c#Winform自定义控件-复选框-HZHControls

官网

前提

目录

准备工作

开始

用处及效果

最后的话