（五）c#Winform自定义控件-复选框
（五）c#Winform自定义控件-复选框
冰封一夏
发布于 2019-09-11 15:52:19
发布于 2019-09-11 15:52:19
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
目录
https://www.cnblogs.com/bfyx/p/11364884.html
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 } 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 }用处及效果
用途：复选框
效果：
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原始发表：2019-08-16 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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