（三十）c#Winform自定义控件-文本框（三）
（三十）c#Winform自定义控件-文本框（三）
冰封一夏
发布于 2019-09-11 16:57:12
发布于 2019-09-11 16:57:12
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
目录
https://www.cnblogs.com/bfyx/p/11364884.html
准备工作
终于到文本框了，文本框将包含原文本框扩展，透明文本框，数字输入文本框，带边框文本框
本文将讲解数字输入文本框，可以通过加减按钮来改变数字
用到了无焦点窗体和键盘，如果你还没有了解，请前往查看
开始
添加用户控件，命名UCNumTextBox
有这些属性
1 [Description("弹出输入键盘时发生"), Category("自定义")]
2 public event EventHandler ShowKeyBorderEvent;
3 [Description("关闭输入键盘时发生"), Category("自定义")]
4 public event EventHandler HideKeyBorderEvent;
5 [Description("数字改变时发生"), Category("自定义")]
6 public event EventHandler NumChanged;
7 /// <summary>
8 /// 输入类型
9 /// </summary>
10 [Description("输入类型"), Category("自定义")]
11 public TextInputType InputType
12 {
13 get
14 {
15 return txtNum.InputType;
16 }
17 set
18 {
19 if (value == TextInputType.NotControl)
20 {
21 return;
22 }
23 txtNum.InputType = value;
24 }
25 }
26
27 [Description("数字是否可手动编辑"), Category("自定义")]
28 public bool IsNumCanInput
29 {
30 get
31 {
32 return txtNum.Enabled;
33 }
34 set
35 {
36 txtNum.Enabled = value;
37 }
38 }
39 /// <summary>
40 /// 当InputType为数字类型时，能输入的最大值
41 /// </summary>
42 [Description("当InputType为数字类型时，能输入的最大值。")]
43 public decimal MaxValue
44 {
45 get
46 {
47 return this.txtNum.MaxValue;
48 }
49 set
50 {
51 this.txtNum.MaxValue = value;
52 }
53 }
54 /// <summary>
55 /// 当InputType为数字类型时，能输入的最小值
56 /// </summary>
57 [Description("当InputType为数字类型时，能输入的最小值。")]
58 public decimal MinValue
59 {
60 get
61 {
62 return this.txtNum.MinValue;
63 }
64 set
65 {
66 this.txtNum.MinValue = value;
67 }
68 }
69 private KeyBoardType keyBoardType = KeyBoardType.UCKeyBorderNum;
70 [Description("键盘样式"), Category("自定义")]
71 public KeyBoardType KeyBoardType
72 {
73 get { return keyBoardType; }
74 set { keyBoardType = value; }
75 }
76
77 [Description("数值"), Category("自定义")]
78 public decimal Num
79 {
80 get { return txtNum.Text.ToDecimal(); }
81 set { txtNum.Text = value.ToString(); }
82 }
83 [Description("字体"), Category("自定义")]
84 public new Font Font
85 {
86 get
87 {
88 return txtNum.Font;
89 }
90 set
91 {
92 txtNum.Font = value;
93 }
94 }
95
96 [Description("增加按钮点击事件"), Category("自定义")]
97 public event EventHandler AddClick;
98 [Description("减少按钮点击事件"), Category("自定义")]
99 public event EventHandler MinusClick;一些事件
1 void txtNum_TextChanged(object sender, EventArgs e)
2 {
3 if (NumChanged != null)
4 {
5 NumChanged(txtNum.Text.ToString(), e);
6 }
7 }
8 Forms.FrmAnchor m_frmAnchor;
9 private void txtNum_MouseDown(object sender, MouseEventArgs e)
10 {
11 if (IsNumCanInput)
12 {
13 if (KeyBoardType != HZH_Controls.Controls.KeyBoardType.Null)
14 {
15 switch (keyBoardType)
16 {
17 case KeyBoardType.UCKeyBorderAll_EN:
18
19 UCKeyBorderAll keyAll = new UCKeyBorderAll();
20 keyAll.RetractClike += (a, b) => { m_frmAnchor.Hide(); };
21 keyAll.EnterClick += (a, b) => { m_frmAnchor.Hide(); };
22 m_frmAnchor = new Forms.FrmAnchor(this, keyAll);
23 m_frmAnchor.VisibleChanged += m_frmAnchor_VisibleChanged;
24
25 m_frmAnchor.Show(this.FindForm());
26 break;
27 case KeyBoardType.UCKeyBorderNum:
28
29 UCKeyBorderNum keyNum = new UCKeyBorderNum();
30 keyNum.EnterClick += (a, b) => { m_frmAnchor.Hide(); };
31 m_frmAnchor = new Forms.FrmAnchor(this, keyNum);
32 m_frmAnchor.VisibleChanged += m_frmAnchor_VisibleChanged;
33 m_frmAnchor.Show(this.FindForm());
34 break;
35 }
36 }
37 }
38 }
39
40 void m_frmAnchor_VisibleChanged(object sender, EventArgs e)
41 {
42 if (m_frmAnchor.Visible)
43 {
44 if (ShowKeyBorderEvent != null)
45 {
46 ShowKeyBorderEvent(this, null);
47 }
48 }
49 else
50 {
51 if (HideKeyBorderEvent != null)
52 {
53 HideKeyBorderEvent(this, null);
54 }
55 }
56 }
57
58 public void NumAddClick()
59 {
60 btnAdd_MouseDown(null, null);
61 }
62
63 public void NumMinusClick()
64 {
65 btnMinus_MouseDown(null, null);
66 }
67
68 private void btnAdd_MouseDown(object sender, MouseEventArgs e)
69 {
70 if (AddClick != null)
71 {
72 AddClick(this, e);
73 }
74 decimal dec = this.txtNum.Text.ToDecimal();
75 dec++;
76 txtNum.Text = dec.ToString();
77
78 }
79
80 private void btnMinus_MouseDown(object sender, MouseEventArgs e)
81 {
82 if (MinusClick != null)
83 {
84 MinusClick(this, e);
85 }
86 decimal dec = this.txtNum.Text.ToDecimal();
87 dec--;
88 txtNum.Text = dec.ToString();
89 }
90
91 private void UCNumTextBox_Load(object sender, EventArgs e)
92 {
93 this.txtNum.BackColor = this.BackColor;
94 }
95
96 private void txtNum_FontChanged(object sender, EventArgs e)
97 {
98 txtNum.Location = new Point(txtNum.Location.X, (this.Height - txtNum.Height) / 2);
99 }
100
101 private void UCNumTextBox_BackColorChanged(object sender, EventArgs e)
102 {
103 Color c = this.BackColor;
104 Control control = this;
105 while (c == Color.Transparent)
106 {
107 control = control.Parent;
108 if (control == null)
109 break;
110 c = control.BackColor;
111 }
112 if (c == Color.Transparent)
113 return;
114 txtNum.BackColor = c;
115 }完整代码
1 // 版权所有 黄正辉 交流群：568015492 QQ：623128629
2 // 文件名称：UCNumTextBox.cs
3 // 创建日期：2019-08-15 16:03:54
4 // 功能描述：TextBox
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("NumChanged")]
18 public partial class UCNumTextBox : UserControl
19 {
20 [Description("弹出输入键盘时发生"), Category("自定义")]
21 public event EventHandler ShowKeyBorderEvent;
22 [Description("关闭输入键盘时发生"), Category("自定义")]
23 public event EventHandler HideKeyBorderEvent;
24 [Description("数字改变时发生"), Category("自定义")]
25 public event EventHandler NumChanged;
26 /// <summary>
27 /// 输入类型
28 /// </summary>
29 [Description("输入类型"), Category("自定义")]
30 public TextInputType InputType
31 {
32 get
33 {
34 return txtNum.InputType;
35 }
36 set
37 {
38 if (value == TextInputType.NotControl)
39 {
40 return;
41 }
42 txtNum.InputType = value;
43 }
44 }
45
46 [Description("数字是否可手动编辑"), Category("自定义")]
47 public bool IsNumCanInput
48 {
49 get
50 {
51 return txtNum.Enabled;
52 }
53 set
54 {
55 txtNum.Enabled = value;
56 }
57 }
58 /// <summary>
59 /// 当InputType为数字类型时，能输入的最大值
60 /// </summary>
61 [Description("当InputType为数字类型时，能输入的最大值。")]
62 public decimal MaxValue
63 {
64 get
65 {
66 return this.txtNum.MaxValue;
67 }
68 set
69 {
70 this.txtNum.MaxValue = value;
71 }
72 }
73 /// <summary>
74 /// 当InputType为数字类型时，能输入的最小值
75 /// </summary>
76 [Description("当InputType为数字类型时，能输入的最小值。")]
77 public decimal MinValue
78 {
79 get
80 {
81 return this.txtNum.MinValue;
82 }
83 set
84 {
85 this.txtNum.MinValue = value;
86 }
87 }
88 private KeyBoardType keyBoardType = KeyBoardType.UCKeyBorderNum;
89 [Description("键盘样式"), Category("自定义")]
90 public KeyBoardType KeyBoardType
91 {
92 get { return keyBoardType; }
93 set { keyBoardType = value; }
94 }
95
96 [Description("数值"), Category("自定义")]
97 public decimal Num
98 {
99 get { return txtNum.Text.ToDecimal(); }
100 set { txtNum.Text = value.ToString(); }
101 }
102 [Description("字体"), Category("自定义")]
103 public new Font Font
104 {
105 get
106 {
107 return txtNum.Font;
108 }
109 set
110 {
111 txtNum.Font = value;
112 }
113 }
114
115 [Description("增加按钮点击事件"), Category("自定义")]
116 public event EventHandler AddClick;
117 [Description("减少按钮点击事件"), Category("自定义")]
118 public event EventHandler MinusClick;
119 public UCNumTextBox()
120 {
121 InitializeComponent();
122 txtNum.TextChanged += txtNum_TextChanged;
123 }
124
125 void txtNum_TextChanged(object sender, EventArgs e)
126 {
127 if (NumChanged != null)
128 {
129 NumChanged(txtNum.Text.ToString(), e);
130 }
131 }
132 Forms.FrmAnchor m_frmAnchor;
133 private void txtNum_MouseDown(object sender, MouseEventArgs e)
134 {
135 if (IsNumCanInput)
136 {
137 if (KeyBoardType != HZH_Controls.Controls.KeyBoardType.Null)
138 {
139 switch (keyBoardType)
140 {
141 case KeyBoardType.UCKeyBorderAll_EN:
142
143 UCKeyBorderAll keyAll = new UCKeyBorderAll();
144 keyAll.RetractClike += (a, b) => { m_frmAnchor.Hide(); };
145 keyAll.EnterClick += (a, b) => { m_frmAnchor.Hide(); };
146 m_frmAnchor = new Forms.FrmAnchor(this, keyAll);
147 m_frmAnchor.VisibleChanged += m_frmAnchor_VisibleChanged;
148
149 m_frmAnchor.Show(this.FindForm());
150 break;
151 case KeyBoardType.UCKeyBorderNum:
152
153 UCKeyBorderNum keyNum = new UCKeyBorderNum();
154 keyNum.EnterClick += (a, b) => { m_frmAnchor.Hide(); };
155 m_frmAnchor = new Forms.FrmAnchor(this, keyNum);
156 m_frmAnchor.VisibleChanged += m_frmAnchor_VisibleChanged;
157 m_frmAnchor.Show(this.FindForm());
158 break;
159 }
160 }
161 }
162 }
163
164 void m_frmAnchor_VisibleChanged(object sender, EventArgs e)
165 {
166 if (m_frmAnchor.Visible)
167 {
168 if (ShowKeyBorderEvent != null)
169 {
170 ShowKeyBorderEvent(this, null);
171 }
172 }
173 else
174 {
175 if (HideKeyBorderEvent != null)
176 {
177 HideKeyBorderEvent(this, null);
178 }
179 }
180 }
181
182 public void NumAddClick()
183 {
184 btnAdd_MouseDown(null, null);
185 }
186
187 public void NumMinusClick()
188 {
189 btnMinus_MouseDown(null, null);
190 }
191
192 private void btnAdd_MouseDown(object sender, MouseEventArgs e)
193 {
194 if (AddClick != null)
195 {
196 AddClick(this, e);
197 }
198 decimal dec = this.txtNum.Text.ToDecimal();
199 dec++;
200 txtNum.Text = dec.ToString();
201
202 }
203
204 private void btnMinus_MouseDown(object sender, MouseEventArgs e)
205 {
206 if (MinusClick != null)
207 {
208 MinusClick(this, e);
209 }
210 decimal dec = this.txtNum.Text.ToDecimal();
211 dec--;
212 txtNum.Text = dec.ToString();
213 }
214
215 private void UCNumTextBox_Load(object sender, EventArgs e)
216 {
217 this.txtNum.BackColor = this.BackColor;
218 }
219
220 private void txtNum_FontChanged(object sender, EventArgs e)
221 {
222 txtNum.Location = new Point(txtNum.Location.X, (this.Height - txtNum.Height) / 2);
223 }
224
225 private void UCNumTextBox_BackColorChanged(object sender, EventArgs e)
226 {
227 Color c = this.BackColor;
228 Control control = this;
229 while (c == Color.Transparent)
230 {
231 control = control.Parent;
232 if (control == null)
233 break;
234 c = control.BackColor;
235 }
236 if (c == Color.Transparent)
237 return;
238 txtNum.BackColor = c;
239 }
240 }
241 } 1 namespace HZH_Controls.Controls
2 {
3 partial class UCNumTextBox
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.txtNum = new HZH_Controls.Controls.TextBoxEx();
32 this.btnMinus = new System.Windows.Forms.Panel();
33 this.btnAdd = new System.Windows.Forms.Panel();
34 this.SuspendLayout();
35 //
36 // txtNum
37 //
38 this.txtNum.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
39 this.txtNum.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(247)))), ((int)(((byte)(247)))), ((int)(((byte)(247)))));
40 this.txtNum.BorderStyle = System.Windows.Forms.BorderStyle.None;
41 this.txtNum.DecLength = 3;
42 this.txtNum.Font = new System.Drawing.Font("Arial Unicode MS", 15F);
43 this.txtNum.InputType = TextInputType.Number;
44 this.txtNum.Location = new System.Drawing.Point(37, 11);
45 this.txtNum.Margin = new System.Windows.Forms.Padding(0);
46 this.txtNum.MaxValue = new decimal(new int[] {
47 1000000,
48 0,
49 0,
50 0});
51 this.txtNum.MinValue = new decimal(new int[] {
52 0,
53 0,
54 0,
55 0});
56 this.txtNum.MyRectangle = new System.Drawing.Rectangle(0, 0, 0, 0);
57 this.txtNum.Name = "txtNum";
58 this.txtNum.OldText = null;
59 this.txtNum.PromptColor = System.Drawing.Color.Gray;
60 this.txtNum.PromptFont = new System.Drawing.Font("微软雅黑", 15F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Pixel);
61 this.txtNum.PromptText = "";
62 this.txtNum.RegexPattern = "";
63 this.txtNum.Size = new System.Drawing.Size(78, 27);
64 this.txtNum.TabIndex = 9;
65 this.txtNum.Text = "1";
66 this.txtNum.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
67 this.txtNum.FontChanged += new System.EventHandler(this.txtNum_FontChanged);
68 this.txtNum.MouseDown += new System.Windows.Forms.MouseEventHandler(this.txtNum_MouseDown);
69 //
70 // btnMinus
71 //
72 this.btnMinus.BackColor = System.Drawing.Color.Transparent;
73 this.btnMinus.BackgroundImage = global::HZH_Controls.Properties.Resources.ic_remove_black_18dp;
74 this.btnMinus.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Center;
75 this.btnMinus.Dock = System.Windows.Forms.DockStyle.Left;
76 this.btnMinus.Location = new System.Drawing.Point(2, 2);
77 this.btnMinus.Name = "btnMinus";
78 this.btnMinus.Size = new System.Drawing.Size(32, 40);
79 this.btnMinus.TabIndex = 6;
80 this.btnMinus.MouseDown += new System.Windows.Forms.MouseEventHandler(this.btnMinus_MouseDown);
81 //
82 // btnAdd
83 //
84 this.btnAdd.BackColor = System.Drawing.Color.Transparent;
85 this.btnAdd.BackgroundImage = global::HZH_Controls.Properties.Resources.ic_add_black_18dp;
86 this.btnAdd.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Center;
87 this.btnAdd.Dock = System.Windows.Forms.DockStyle.Right;
88 this.btnAdd.Location = new System.Drawing.Point(118, 2);
89 this.btnAdd.Name = "btnAdd";
90 this.btnAdd.Size = new System.Drawing.Size(32, 40);
91 this.btnAdd.TabIndex = 5;
92 this.btnAdd.MouseDown += new System.Windows.Forms.MouseEventHandler(this.btnAdd_MouseDown);
93 //
94 // UCNumTextBox
95 //
96 this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
97 this.Controls.Add(this.txtNum);
98 this.Controls.Add(this.btnMinus);
99 this.Controls.Add(this.btnAdd);
100 this.Name = "UCNumTextBox";
101 this.Padding = new System.Windows.Forms.Padding(2);
102 this.Size = new System.Drawing.Size(152, 44);
103 this.Load += new System.EventHandler(this.UCNumTextBox_Load);
104 this.BackColorChanged += new System.EventHandler(this.UCNumTextBox_BackColorChanged);
105 this.ResumeLayout(false);
106 this.PerformLayout();
107
108 }
109
110 #endregion
111
112 private System.Windows.Forms.Panel btnAdd;
113 private System.Windows.Forms.Panel btnMinus;
114 private TextBoxEx txtNum;
115 }
116 }设计效果
用处及效果
本文参与 腾讯云自媒体分享计划，分享自作者个人站点/博客。
原始发表：2019-08-16 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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