仿listBox写了一个Control控件为item的列表集合，由于最近做个项目要用，微软提供的控件实现起来不行，但自己写了一个，效果如下：
代码
1
using System;
2using System.Collections.Generic;
3using System.ComponentModel;
4using System.Data;
5using System.Drawing;
6using System.Text;
7using System.Text.RegularExpressions;
8using System.Windows.Forms;
9
10namespace SQLAnalysis
11
{
12
public class MySelfControlList : Control
13
{
14 private System.Windows.Forms.ErrorProvider err;
15 public MySelfControlList()
16 {
17 InitializeComponent();
18 this.BackColor = Color.White;
19 itemList = new ListItemColloction();
20 if (isNeedVaidate)
21 {
22 err = new ErrorProvider();
23
}
24 }
25
26
27
28
29 [Browsable(false)]
30 public bool IsValidated
31 {
32 get
33 {
34 return List_Validating();
35 }
36 }
37 [DefaultValue(typeof(Color), "White")]
38 public override Color BackColor
39 {
40 get
41 {
42 return base.BackColor;
43 }
44 set
45 {
46 base.BackColor = value;
47 }
48 }
49 private ListItemColloction itemList;
50
51 /// <summary>
52 /// 不提供设计时绑定
53 /// </summary>
54 [Bindable(false), Browsable(false)]
55 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
56 public ListItemColloction Items
57 {
58 get
59 {
60 if (itemList == null)
61 itemList = new ListItemColloction();
62 return itemList;
63 }
64 set
65 {
66 itemList = value;
67 }
68 }
69 public int Count
70 {
71 get
72 {
73 return itemList.Count;
74 }
75 }
76 public void RemoveAll()
77 {
78 for( int i=this.itemList.Count -1;i>-1;i--)
79 {
80 Item item = itemList[i];
81 item.ItemControl.Parent = null;
82 itemList.Remove(item);
83 }
84
85 }
86 public int AddItem(Item item)
87 {
88 itemList.Add(item);
89 this.Refresh();
90 return itemList.IndexOf(item);
91 }
92 public void InsertItem(int index, Item item)
93 {
94 itemList.Insert(index, item);
95 this.Refresh();
96
97 }
98 public void RemoveItem(Item item)
99 {
100 item.ItemControl.Parent = null;
101 itemList.Remove(item);
102 this.Refresh();
103 }
104 public void RemoveItemAt(int index)
105 {
106 itemList[index].ItemControl.Parent = null;
107 itemList.RemoveAt(index);
108 this.Refresh();
109 }
110 private string emptyText;
111 public string EmptyText
112 {
113 get
114 {
115 return emptyText;
116 }
117 set
118 {
119 emptyText =value;
120 }
121 }
122 [Browsable(false)]
123 public override string Text
124 {
125 get
126 {
127 return base.Text;
128 }
129 set
130 {
131 base.Text = value;
132 }
133 }
134
135
136
137 public string ItemText(int index)
138 {
139 return itemList[index].ItemControl.Text;
140 }
141
142 private ToolTip toolTip1;
143 private int itemHeight = 25;
144 public int ItemHeight
145 {
146 get
147 {
148 return itemHeight;
149 }
150
151 set
152 {
153 itemHeight = value;
154 }
155 }
156 /// <summary>
157 /// 重写Paint方法
158 /// </summary>
159 /// <param name="e"></param>
160 protected override void OnPaint(PaintEventArgs e)
161 {
162
163 this.Height = this.itemHeight * (itemList.Count + 1);
164 base.OnPaint(e);
165 if (itemList.Count == 0)
166 {
167 e.Graphics.DrawString(this.emptyText, this.Font,Brushes.Black, e.ClipRectangle);
168 return;
169 }
170
171
172 //e.Graphics.DrawRectangle(new Pen(Brushes.Black),this.Left,this.Top,this.Width,this.Height);
173 for (int i = 0; i < itemList.Count; i++)
174 {
175 Point location = new Point(0, i * this.itemHeight);
176 Rectangle bound = new Rectangle(location, new Size(this.Size.Width, this.itemHeight));
177 OnDrawItem(new DrawItemEventArgsMySelf(bound, i, e.Graphics));
178 }
179 }
180 /// <summary>
181 /// 画每一项
182 /// </summary>
183 /// <param name="e"></param>
184 protected void OnDrawItem(DrawItemEventArgsMySelf e)
185 {
186 Graphics g = e.Graphics;
187 Pen pen = new Pen(Brushes.Wheat);
188 g.DrawRectangle(pen, e.Bound);
189
190 int index = e.Index;
191 if (index > -1 && index < itemList.Count)
192 {
193 Control ctr = itemList[index].ItemControl;
194 if (ctr.Parent == null)
195 {
196 ctr.Parent = this;
197
198 ctr.Height = e.Bound.Height;
199 if( ctr.Width >this.Width)
200 ctr.Width = this.Width - 5;
201 toolTip1.SetToolTip(ctr, itemList[index].ItemDescribe);
202 }
203 ctr.Location = e.Bound.Location;
204
205 }
206 }
207
208 public bool List_Validating()
209 { bool isValidated = true;
210 foreach (Item item in itemList)
211 {
212 isValidated = isValidated && ListItemControls_Validating(item.ItemControl, new CancelEventArgs());
213 }
214 return isValidated;
215 }
216
217 public bool ListItemControls_Validating(object sender, CancelEventArgs e)
218 {
219 Control ctr = sender as Control;
220 Item item = itemList[ctr];
221
222 if (string.IsNullOrEmpty(item.Regex))
223 return true;
224 Regex regex = new Regex(item.Regex);
225
226 string text = ctr.Text.Trim();
227 if (!regex.IsMatch(text))
228 {
229 err.SetIconAlignment(ctr, ErrorIconAlignment.MiddleRight);
230 err.SetIconPadding(ctr, 3);
231 err.SetError(ctr, item.ErrorMessage);
232 return false;
233 }
234 err.Clear();
235
236 return true;
237 }
238 private void InitializeComponent()
239 {
240
241 this.components = new System.ComponentModel.Container();
242 this.toolTip1 = new System.Windows.Forms.ToolTip(this.components);
243 this.SuspendLayout();
244 this.ResumeLayout(false);
245
246 }
247
248 private IContainer components;
249 }
250
251 public class ListItemColloction : List<Item>
252 {
253 public Item this[Control itemControl]
254 {
255 get
256 {
257 for (int i = 0; i < this.Count; i++)
258 {
259 if (this[i].ItemControl.Equals(itemControl))
260 return this[i];
261 }
262 return null;
263 }
264
265 set
266 {
267 for (int i = 0; i < this.Count; i++)
268 {
269 if (this[i].ItemControl.Equals(itemControl))
270 this[i] = value;
271 }
272 }
273 }
274 }
275
276 [Serializable]
277 public class Item
278 {
279 private Control itemControl = null;
280 private string itemDescible = string.Empty;
281 private string regex = string.Empty;
282 private string errorMessage = string.Empty;
283 public Item()
284 {
285 }
286
287 public Item(Control itemControl, string itemDescible,string regex,string errorMessage)
288 {
289 this.itemControl = itemControl;
290 this.itemDescible = itemDescible;
291 this.regex = regex;
292 this.errorMessage = errorMessage;
293 }
294 public Item(Control itemControl, string itemDescible)
295 {
296 this.itemControl = itemControl;
297 this.itemDescible = itemDescible;
298
299 }
300 public string Regex
301 {
302 get
303 {
304 return regex;
305 }
306 set
307 {
308 regex = value;
309 }
310 }
311 public Control ItemControl
312 {
313 get
314 {
315 return itemControl;
316 }
317 set
318 {
319 itemControl = value;
320 }
321 }
322
323 public string ItemDescribe
324 {
325 get
326 {
327 return itemDescible;
328 }
329
330 set
331 {
332 itemDescible = value;
333 }
334 }
335
336 public string ErrorMessage
337 {
338 get
339 {
340 return errorMessage;
341 }
342 set
343 {
344 errorMessage = value;
345 }
346 }
347
348 }
349 public class DrawItemEventArgsMySelf : EventArgs
350 {
351 private Rectangle bound = Rectangle.Empty;
352
353 private int index;
354 private Graphics graphics;
355 public Graphics Graphics
356 {
357 get
358 {
359 return this.graphics;
360 }
361 }
362 public DrawItemEventArgsMySelf(Rectangle bound, int index, Graphics g)
363 {
364 this.bound = bound;
365
366 this.index = index;
367 this.graphics = g;
368 }
369 public Rectangle Bound
370 {
371 get
372 {
373 return this.bound;
374 }
375 }
376
377
378 public int Index
379 {
380 get
381 {
382 return index;
383 }
384 }
385
386 }
387
}
388
