（三十五）c#Winform自定义控件-下拉框
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 
目录
https://blog.csdn.net/kwwwvagaa/article/details/100586547
准备工作
此控件用到了停靠窗体和日期控件的一个面板，以及基类控件，如果你还对此不了解，请移步
（一）c#Winform自定义控件-基类控件
（十九）c#Winform自定义控件-停靠窗体
（三十三）c#Winform自定义控件-日期控件
开始
添加一个用户控件，命名UCComboBox，继承自UCControlBase
属性
1 Color _ForeColor = Color.FromArgb(64, 64, 64);
2 [Description("文字颜色"), Category("自定义")]
3 public override Color ForeColor
4 {
5 get
6 {
7 return _ForeColor;
8 }
9 set
10 {
11 _ForeColor = value;
12 lblInput.ForeColor = value;
13 txtInput.ForeColor = value;
14 }
15 }
16
17 public event EventHandler SelectedChangedEvent;
18 public event EventHandler TextChangedEvent;
19
20 private ComboBoxStyle _BoxStyle = ComboBoxStyle.DropDown;
21
22 [Description("控件样式"), Category("自定义")]
23 public ComboBoxStyle BoxStyle
24 {
25 get { return _BoxStyle; }
26 set
27 {
28 _BoxStyle = value;
29 if (value == ComboBoxStyle.DropDownList)
30 {
31 lblInput.Visible = true;
32 txtInput.Visible = false;
33 }
34 else
35 {
36 lblInput.Visible = false;
37 txtInput.Visible = true;
38 }
39
40 if (this._BoxStyle == ComboBoxStyle.DropDownList)
41 {
42 txtInput.BackColor = _BackColor;
43 base.FillColor = _BackColor;
44 base.RectColor = _BackColor;
45 }
46 else
47 {
48 txtInput.BackColor = Color.White;
49 base.FillColor = Color.White;
50 base.RectColor = Color.FromArgb(220, 220, 220);
51 }
52 }
53 }
54
55 private Font _Font = new Font("微软雅黑", 12);
56 [Description("字体"), Category("自定义")]
57 public new Font Font
58 {
59 get { return _Font; }
60 set
61 {
62 _Font = value;
63 lblInput.Font = value;
64 txtInput.Font = value;
65 txtInput.PromptFont = value;
66 this.txtInput.Location = new Point(this.txtInput.Location.X, (this.Height - txtInput.Height) / 2);
67 this.lblInput.Location = new Point(this.lblInput.Location.X, (this.Height - lblInput.Height) / 2);
68 }
69 }
70
71
72 [Obsolete("不再可用的属性")]
73 [Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
74 private new Color FillColor
75 {
76 get;
77 set;
78 }
79
80 [Obsolete("不再可用的属性")]
81 [Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
82 private new Color RectColor
83 {
84 get;
85 set;
86 }
87
88 private string _TextValue;
89
90 public string TextValue
91 {
92 get { return _TextValue; }
93 set
94 {
95 _TextValue = value;
96 if (lblInput.Text != value)
97 lblInput.Text = value;
98 if (txtInput.Text != value)
99 txtInput.Text = value;
100 }
101 }
102
103 private List> _source = null;
104
105 public List> Source
106 {
107 get { return _source; }
108 set
109 {
110 _source = value;
111 _selectedIndex = -1;
112 _selectedValue = "";
113 _selectedItem = new KeyValuePair();
114 _selectedText = "";
115 lblInput.Text = "";
116 txtInput.Text = "";
117 }
118 }
119
120 private KeyValuePair _selectedItem = new KeyValuePair();
121
122 private int _selectedIndex = -1;
123
124 public int SelectedIndex
125 {
126 get
127 {
128 return _selectedIndex;
129 }
130 set
131 {
132 if (value < 0 || _source == null || _source.Count <= 0 || value >= _source.Count)
133 {
134 _selectedIndex = -1;
135 _selectedValue = "";
136 _selectedItem = new KeyValuePair();
137 SelectedText = "";
138 }
139 else
140 {
141 _selectedIndex = value;
142 _selectedItem = _source[value];
143 _selectedValue = _source[value].Key;
144 SelectedText = _source[value].Value;
145 }
146 }
147 }
148
149 private string _selectedValue = "";
150
151 public string SelectedValue
152 {
153 get
154 {
155 return _selectedValue;
156 }
157 set
158 {
159 if (_source == null || _source.Count <= 0)
160 {
161 SelectedText = "";
162 _selectedValue = "";
163 _selectedIndex = -1;
164 _selectedItem = new KeyValuePair();
165 }
166 else
167 {
168 for (int i = 0; i < _source.Count; i++)
169 {
170 if (_source[i].Key == value)
171 {
172 _selectedValue = value;
173 _selectedIndex = i;
174 _selectedItem = _source[i];
175 SelectedText = _source[i].Value;
176 return;
177 }
178 }
179 _selectedValue = "";
180 _selectedIndex = -1;
181 _selectedItem = new KeyValuePair();
182 SelectedText = "";
183 }
184 }
185 }
186
187 private string _selectedText = "";
188
189 public string SelectedText
190 {
191 get { return _selectedText; }
192 private set
193 {
194 _selectedText = value;
195 lblInput.Text = _selectedText;
196 txtInput.Text = _selectedText;
197 if (SelectedChangedEvent != null)
198 {
199 SelectedChangedEvent(this, null);
200 }
201 }
202 }
203
204 private int _ItemWidth = 70;
205
206 public int ItemWidth
207 {
208 get { return _ItemWidth; }
209 set { _ItemWidth = value; }
210 }
211
212 private int _dropPanelHeight = -1;
213
214 public int DropPanelHeight
215 {
216 get { return _dropPanelHeight; }
217 set { _dropPanelHeight = value; }
218 }
219 [Obsolete("不再可用的属性,如需要改变背景色，请使用BackColorExt")]
220 [Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
221 private new Color BackColor
222 {
223 get
224 {
225 return base.BackColor;
226 }
227 set
228 {
229 base.BackColor = Color.Transparent;
230 }
231 }
232
233 private Color _BackColor = Color.FromArgb(240, 240, 240);
234
235 public Color BackColorExt
236 {
237 get
238 {
239 return _BackColor;
240 }
241 set
242 {
243 if (value == Color.Transparent)
244 return;
245 _BackColor = value;
246 lblInput.BackColor = value;
247
248 if (this._BoxStyle == ComboBoxStyle.DropDownList)
249 {
250 txtInput.BackColor = value;
251 base.FillColor = value;
252 base.RectColor = value;
253 }
254 else
255 {
256 txtInput.BackColor = Color.White;
257 base.FillColor = Color.White;
258 base.RectColor = Color.FromArgb(220, 220, 220);
259 }
260 }
261 }
构造函数初始化处理
1 public UCComboBox()
2 {
3 InitializeComponent();
4 lblInput.BackColor = _BackColor;
5 if (this._BoxStyle == ComboBoxStyle.DropDownList)
6 {
7 txtInput.BackColor = _BackColor;
8 base.FillColor = _BackColor;
9 base.RectColor = _BackColor;
10 }
11 else
12 {
13 txtInput.BackColor = Color.White;
14 base.FillColor = Color.White;
15 base.RectColor = Color.FromArgb(220, 220, 220);
16 }
17 base.BackColor = Color.Transparent;
18 }
一些事件处理
1 private void UCComboBox_SizeChanged(object sender, EventArgs e)
2 {
3 this.txtInput.Location = new Point(this.txtInput.Location.X, (this.Height - txtInput.Height) / 2);
4 this.lblInput.Location = new Point(this.lblInput.Location.X, (this.Height - lblInput.Height) / 2);
5 }
6
7 private void txtInput_TextChanged(object sender, EventArgs e)
8 {
9 TextValue = txtInput.Text;
10 if (TextChangedEvent != null)
11 {
12 TextChangedEvent(this, null);
13 }
14 }
15
16 private void click_MouseDown(object sender, MouseEventArgs e)
17 {
18 if (_frmAnchor == null || _frmAnchor.IsDisposed || _frmAnchor.Visible == false)
19 {
20
21 if (this.Source != null && this.Source.Count > 0)
22 {
23 int intRow = 0;
24 int intCom = 1;
25 var p = this.PointToScreen(this.Location);
26 while (true)
27 {
28 int intScreenHeight = Screen.PrimaryScreen.Bounds.Height;
29 if ((p.Y + this.Height + this.Source.Count / intCom * 50 < intScreenHeight || p.Y - this.Source.Count / intCom * 50 > 0)
30 && (_dropPanelHeight <= 0 ? true : (this.Source.Count / intCom * 50 <= _dropPanelHeight)))
31 {
32 intRow = this.Source.Count / intCom + (this.Source.Count % intCom != 0 ? 1 : 0);
33 break;
34 }
35 intCom++;
36 }
37 UCTimePanel ucTime = new UCTimePanel();
38 ucTime.IsShowBorder = true;
39 int intWidth = this.Width / intCom;
40 if (intWidth < _ItemWidth)
41 intWidth = _ItemWidth;
42 Size size = new Size(intCom * intWidth, intRow * 50);
43 ucTime.Size = size;
44 ucTime.FirstEvent = true;
45 ucTime.SelectSourceEvent += ucTime_SelectSourceEvent;
46 ucTime.Row = intRow;
47 ucTime.Column = intCom;
48 List> lst = new List>();
49 foreach (var item in this.Source)
50 {
51 lst.Add(new KeyValuePair(item.Key, item.Value));
52 }
53 ucTime.Source = lst;
54
55 ucTime.SetSelect(_selectedValue);
56
57 _frmAnchor = new Forms.FrmAnchor(this, ucTime);
58 _frmAnchor.Load += (a, b) => { (a as Form).Size = size; };
59
60 _frmAnchor.Show(this.FindForm());
61
62 }
63 }
64 else
65 {
66 _frmAnchor.Close();
67 }
68 }
69
70
71 Forms.FrmAnchor _frmAnchor;
72 void ucTime_SelectSourceEvent(object sender, EventArgs e)
73 {
74 if (_frmAnchor != null && !_frmAnchor.IsDisposed && _frmAnchor.Visible)
75 {
76 SelectedValue = sender.ToString();
77 _frmAnchor.Close();
78 }
79 }
80
81 private void UCComboBox_Load(object sender, EventArgs e)
82 {
83 if (this._BoxStyle == ComboBoxStyle.DropDownList)
84 {
85 txtInput.BackColor = _BackColor;
86 base.FillColor = _BackColor;
87 base.RectColor = _BackColor;
88 }
89 else
90 {
91 txtInput.BackColor = Color.White;
92 base.FillColor = Color.White;
93 base.RectColor = Color.FromArgb(220, 220, 220);
94 }
95
96 //if (this.Parent != null && BackColor == Color.Transparent)
97 }
98 }
99 }
完整代码如下
// 版权所有 黄正辉 交流群：568015492 QQ：623128629
// 文件名称：UCComboBox.cs
// 创建日期：2019-08-15 15:58:51
// 功能描述：ComboBox
// 项目地址：https://gitee.com/kwwwvagaa/net_winform_custom_control
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace HZH_Controls.Controls
{
[DefaultEvent("SelectedChangedEvent")]
public partial class UCComboBox : UCControlBase
{
Color _ForeColor = Color.FromArgb(64, 64, 64);
[Description("文字颜色"), Category("自定义")]
public override Color ForeColor
{
get
{
return _ForeColor;
}
set
{
_ForeColor = value;
lblInput.ForeColor = value;
txtInput.ForeColor = value;
}
}
public event EventHandler SelectedChangedEvent;
public event EventHandler TextChangedEvent;
private ComboBoxStyle _BoxStyle = ComboBoxStyle.DropDown;
[Description("控件样式"), Category("自定义")]
public ComboBoxStyle BoxStyle
{
get { return _BoxStyle; }
set
{
_BoxStyle = value;
if (value == ComboBoxStyle.DropDownList)
{
lblInput.Visible = true;
txtInput.Visible = false;
}
else
{
lblInput.Visible = false;
txtInput.Visible = true;
}
if (this._BoxStyle == ComboBoxStyle.DropDownList)
{
txtInput.BackColor = _BackColor;
base.FillColor = _BackColor;
base.RectColor = _BackColor;
}
else
{
txtInput.BackColor = Color.White;
base.FillColor = Color.White;
base.RectColor = Color.FromArgb(220, 220, 220);
}
}
}
private Font _Font = new Font("微软雅黑", 12);
[Description("字体"), Category("自定义")]
public new Font Font
{
get { return _Font; }
set
{
_Font = value;
lblInput.Font = value;
txtInput.Font = value;
txtInput.PromptFont = value;
this.txtInput.Location = new Point(this.txtInput.Location.X, (this.Height - txtInput.Height) / 2);
this.lblInput.Location = new Point(this.lblInput.Location.X, (this.Height - lblInput.Height) / 2);
}
}
[Obsolete("不再可用的属性")]
[Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
private new Color FillColor
{
get;
set;
}
[Obsolete("不再可用的属性")]
[Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
private new Color RectColor
{
get;
set;
}
private string _TextValue;
public string TextValue
{
get { return _TextValue; }
set
{
_TextValue = value;
if (lblInput.Text != value)
lblInput.Text = value;
if (txtInput.Text != value)
txtInput.Text = value;
}
}
private List> _source = null;
public List> Source
{
get { return _source; }
set
{
_source = value;
_selectedIndex = -1;
_selectedValue = "";
_selectedItem = new KeyValuePair();
_selectedText = "";
lblInput.Text = "";
txtInput.Text = "";
}
}
private KeyValuePair _selectedItem = new KeyValuePair();
private int _selectedIndex = -1;
public int SelectedIndex
{
get
{
return _selectedIndex;
}
set
{
if (value < 0 || _source == null || _source.Count <= 0 || value >= _source.Count)
{
_selectedIndex = -1;
_selectedValue = "";
_selectedItem = new KeyValuePair();
SelectedText = "";
}
else
{
_selectedIndex = value;
_selectedItem = _source[value];
_selectedValue = _source[value].Key;
SelectedText = _source[value].Value;
}
}
}
private string _selectedValue = "";
public string SelectedValue
{
get
{
return _selectedValue;
}
set
{
if (_source == null || _source.Count <= 0)
{
SelectedText = "";
_selectedValue = "";
_selectedIndex = -1;
_selectedItem = new KeyValuePair();
}
else
{
for (int i = 0; i < _source.Count; i++)
{
if (_source[i].Key == value)
{
_selectedValue = value;
_selectedIndex = i;
_selectedItem = _source[i];
SelectedText = _source[i].Value;
return;
}
}
_selectedValue = "";
_selectedIndex = -1;
_selectedItem = new KeyValuePair();
SelectedText = "";
}
}
}
private string _selectedText = "";
public string SelectedText
{
get { return _selectedText; }
private set
{
_selectedText = value;
lblInput.Text = _selectedText;
txtInput.Text = _selectedText;
if (SelectedChangedEvent != null)
{
SelectedChangedEvent(this, null);
}
}
}
private int _ItemWidth = 70;
public int ItemWidth
{
get { return _ItemWidth; }
set { _ItemWidth = value; }
}
private int _dropPanelHeight = -1;
public int DropPanelHeight
{
get { return _dropPanelHeight; }
set { _dropPanelHeight = value; }
}
[Obsolete("不再可用的属性,如需要改变背景色，请使用BackColorExt")]
[Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
private new Color BackColor
{
get
{
return base.BackColor;
}
set
{
base.BackColor = Color.Transparent;
}
}
private Color _BackColor = Color.FromArgb(240, 240, 240);
public Color BackColorExt
{
get
{
return _BackColor;
}
set
{
if (value == Color.Transparent)
return;
_BackColor = value;
lblInput.BackColor = value;
if (this._BoxStyle == ComboBoxStyle.DropDownList)
{
txtInput.BackColor = value;
base.FillColor = value;
base.RectColor = value;
}
else
{
txtInput.BackColor = Color.White;
base.FillColor = Color.White;
base.RectColor = Color.FromArgb(220, 220, 220);
}
}
}
public UCComboBox()
{
InitializeComponent();
lblInput.BackColor = _BackColor;
if (this._BoxStyle == ComboBoxStyle.DropDownList)
{
txtInput.BackColor = _BackColor;
base.FillColor = _BackColor;
base.RectColor = _BackColor;
}
else
{
txtInput.BackColor = Color.White;
base.FillColor = Color.White;
base.RectColor = Color.FromArgb(220, 220, 220);
}
base.BackColor = Color.Transparent;
}
private void UCComboBox_SizeChanged(object sender, EventArgs e)
{
this.txtInput.Location = new Point(this.txtInput.Location.X, (this.Height - txtInput.Height) / 2);
this.lblInput.Location = new Point(this.lblInput.Location.X, (this.Height - lblInput.Height) / 2);
}
private void txtInput_TextChanged(object sender, EventArgs e)
{
TextValue = txtInput.Text;
if (TextChangedEvent != null)
{
TextChangedEvent(this, null);
}
}
private void click_MouseDown(object sender, MouseEventArgs e)
{
if (_frmAnchor == null || _frmAnchor.IsDisposed || _frmAnchor.Visible == false)
{
if (this.Source != null && this.Source.Count > 0)
{
int intRow = 0;
int intCom = 1;
var p = this.PointToScreen(this.Location);
while (true)
{
int intScreenHeight = Screen.PrimaryScreen.Bounds.Height;
if ((p.Y + this.Height + this.Source.Count / intCom * 50 < intScreenHeight || p.Y - this.Source.Count / intCom * 50 > 0)
&& (_dropPanelHeight <= 0 ? true : (this.Source.Count / intCom * 50 <= _dropPanelHeight)))
{
intRow = this.Source.Count / intCom + (this.Source.Count % intCom != 0 ? 1 : 0);
break;
}
intCom++;
}
UCTimePanel ucTime = new UCTimePanel();
ucTime.IsShowBorder = true;
int intWidth = this.Width / intCom;
if (intWidth < _ItemWidth)
intWidth = _ItemWidth;
Size size = new Size(intCom * intWidth, intRow * 50);
ucTime.Size = size;
ucTime.FirstEvent = true;
ucTime.SelectSourceEvent += ucTime_SelectSourceEvent;
ucTime.Row = intRow;
ucTime.Column = intCom;
List> lst = new List>();
foreach (var item in this.Source)
{
lst.Add(new KeyValuePair(item.Key, item.Value));
}
ucTime.Source = lst;
ucTime.SetSelect(_selectedValue);
_frmAnchor = new Forms.FrmAnchor(this, ucTime);
_frmAnchor.Load += (a, b) => { (a as Form).Size = size; };
_frmAnchor.Show(this.FindForm());
}
}
else
{
_frmAnchor.Close();
}
}
Forms.FrmAnchor _frmAnchor;
void ucTime_SelectSourceEvent(object sender, EventArgs e)
{
if (_frmAnchor != null && !_frmAnchor.IsDisposed && _frmAnchor.Visible)
{
SelectedValue = sender.ToString();
_frmAnchor.Close();
}
}
private void UCComboBox_Load(object sender, EventArgs e)
{
if (this._BoxStyle == ComboBoxStyle.DropDownList)
{
txtInput.BackColor = _BackColor;
base.FillColor = _BackColor;
base.RectColor = _BackColor;
}
else
{
txtInput.BackColor = Color.White;
base.FillColor = Color.White;
base.RectColor = Color.FromArgb(220, 220, 220);
}
}
}
} namespace HZH_Controls.Controls
{
partial class UCComboBox
{
///
/// 必需的设计器变量。
///
private System.ComponentModel.IContainer components = null;
///
/// 清理所有正在使用的资源。
///
/// 如果应释放托管资源，为 true；否则为 false。
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region 组件设计器生成的代码
///
/// 设计器支持所需的方法 - 不要
/// 使用代码编辑器修改此方法的内容。
///
private void InitializeComponent()
{
this.panel1 = new System.Windows.Forms.Panel();
this.txtInput = new HZH_Controls.Controls.TextBoxEx();
this.lblInput = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// panel1
//
this.panel1.BackColor = System.Drawing.Color.Transparent;
this.panel1.BackgroundImage = global::HZH_Controls.Properties.Resources.ComboBox;
this.panel1.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Center;
this.panel1.Dock = System.Windows.Forms.DockStyle.Right;
this.panel1.Location = new System.Drawing.Point(136, 0);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(37, 32);
this.panel1.TabIndex = 0;
this.panel1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.click_MouseDown);
//
// txtInput
//
this.txtInput.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
this.txtInput.BackColor = System.Drawing.Color.White;
this.txtInput.BorderStyle = System.Windows.Forms.BorderStyle.None;
this.txtInput.DecLength = 2;
this.txtInput.Font = new System.Drawing.Font("微软雅黑", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Pixel);
this.txtInput.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.txtInput.InputType = TextInputType.NotControl;
this.txtInput.Location = new System.Drawing.Point(3, 4);
this.txtInput.Margin = new System.Windows.Forms.Padding(3, 3, 10, 3);
this.txtInput.MaxValue = new decimal(new int[] {
1000000,
0,
0,
0});
this.txtInput.MinValue = new decimal(new int[] {
1000000,
0,
0,
-2147483648});
this.txtInput.MyRectangle = new System.Drawing.Rectangle(0, 0, 0, 0);
this.txtInput.Name = "txtInput";
this.txtInput.OldText = null;
this.txtInput.PromptColor = System.Drawing.Color.Silver;
this.txtInput.PromptFont = new System.Drawing.Font("微软雅黑", 15F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Pixel);
this.txtInput.PromptText = "";
this.txtInput.RegexPattern = "";
this.txtInput.Size = new System.Drawing.Size(133, 24);
this.txtInput.TabIndex = 1;
this.txtInput.TextChanged += new System.EventHandler(this.txtInput_TextChanged);
//
// lblInput
//
this.lblInput.AutoSize = true;
this.lblInput.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.lblInput.Location = new System.Drawing.Point(3, 6);
this.lblInput.Name = "lblInput";
this.lblInput.Size = new System.Drawing.Size(0, 20);
this.lblInput.TabIndex = 2;
this.lblInput.Visible = false;
this.lblInput.MouseDown += new System.Windows.Forms.MouseEventHandler(this.click_MouseDown);
//
// UCComboBox
//
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
this.BackColor = System.Drawing.Color.Transparent;
this.ConerRadius = 5;
this.Controls.Add(this.panel1);
this.Controls.Add(this.txtInput);
this.Controls.Add(this.lblInput);
this.FillColor = System.Drawing.Color.Gainsboro;
this.IsShowRect = true;
this.Name = "UCComboBox";
this.Size = new System.Drawing.Size(173, 32);
this.Load += new System.EventHandler(this.UCComboBox_Load);
this.SizeChanged += new System.EventHandler(this.UCComboBox_SizeChanged);
this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.click_MouseDown);
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.Panel panel1;
public TextBoxEx txtInput;
private System.Windows.Forms.Label lblInput;
}
}用处及效果
最后的话
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