博客开通有一阵了，就是没有时间写，遗憾啊。！
这几天做了个排序的自定义控件，在listbox item里放是button 并支持图标的交替变换
效果如下：
把代码贴上：
1
using System;
2using System.Collections.Generic;
3using System.Collections;
4using System.Text;
5using System.ComponentModel;
6using System.Windows.Forms;
7using System.Drawing;
8using System.Drawing.Text;
9using System.Data;
10
11namespace SQLAnalysis
12
{
13
public class ListBoxEx : ListBox
14
{
15 public ListBoxEx()
16 {
17 this.DrawMode = DrawMode.OwnerDrawFixed;
18 btnList = new List<Button>();
19
}
20 public override DrawMode DrawMode
21 {
22 get
23 {
24 return DrawMode.OwnerDrawFixed;
25 }
26 set
27 {
28 base.DrawMode = DrawMode.OwnerDrawFixed;
29 }
30 }
31
32 protected override void OnResize(EventArgs e)
33 {
34 base.OnResize(e);
35 this.Refresh();
36 }
37
38
39
40
41 public Button FindItemButton(int index)
42 {
43
44 // return this.Controls.Find(this.Name + "$ItemComboBox" + index.ToString(), true)[0];
45 if (index >= btnList.Count)
46 return null;
47 return btnList[index];
48
49 }
50
51 /// <summary>
52 /// 提供删除item项
53 /// </summary>
54 /// <param name="index"></param>
55 public void RemoveItem(int index)
56 {
57 this.Items.RemoveAt(index);
58 btnList[index].Parent = null;
59 btnList[index] = null;
60 //btnList[index].Dispose();
61
62 btnList.RemoveAt(index);
63 this.Refresh();
64 }
65 /// <summary>
66 /// 提供移动item项
67 /// </summary>
68 /// <param name="offset"></param>
69 public void MoveItem(int offset)
70 {
71
72 int index = this.SelectedIndex + offset;
73 if (index > -1 && index < this.Items.Count)
74 {
75 int oldSelectedIndex = this.SelectedIndex;
76 Object item = this.SelectedItem;
77 this.Items.RemoveAt(oldSelectedIndex);
78 this.Items.Insert(index, item);
79 Button btn = btnList[oldSelectedIndex];
80 btnList.RemoveAt(oldSelectedIndex);
81 btnList.Insert(index, btn);
82
83 this.Refresh();
84 }
85 else
86 {
87 MessageBox.Show("不是可用的移动矢量");
88
89 }
90
91 }
92
93 private ToggleItem GetNexttoggleItem(ToggleItem tog)
94 {
95 int index = -1;
96 for (int i = 0; i < ToggleItemList.Count; i++)
97 {
98 ToggleItem item =(ToggleItem)ToggleItemList[i];
99 if (item.Tag == tog.Tag)
100 {
101 index = i;
102 break;
103 }
104 }
105 return ((ToggleItem)ToggleItemList[(index + 1) % ToggleItemList.Count]);
106 }
107 private List<ToggleItem> toggleItemList ;//List<ToggleItem> toggleItemList = new List<ToggleItem>();
108 [Bindable(false), Browsable(false)]
109 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
110 public List<ToggleItem> ToggleItemList
111 {
112 get
113 {
114 if (toggleItemList == null)
115 toggleItemList = new List<ToggleItem>();
116 return toggleItemList;
117 }
118
119 set
120 {
121 if (toggleItemList == null)
122 toggleItemList = new List<ToggleItem>();
123 toggleItemList = value;
124 }
125 }
126
127 //主要重写事件
128 protected override void OnDrawItem(DrawItemEventArgs e)
129 {
130 this.DrawMode = DrawMode.OwnerDrawFixed;
131 this.ItemHeight = 22;
132 e.DrawBackground();
133 e.DrawFocusRectangle();
134 Brush myBrush = Brushes.Black;
135 if (e.Index > -1 && e.Index < this.Items.Count)
136 {
137 string drawString = (e.Index + 1)+ " " + this.Items[e.Index].ToString();
138
139
140 e.Graphics.DrawString(drawString, e.Font, new SolidBrush(e.ForeColor), e.Bounds,
141
142StringFormat.GenericDefault);
143 AddButtonToItem(e);
144 }
145 base.OnDrawItem(e);
146
147 }
148
149 private List<Button> btnList = null;
150 protected void AddButtonToItem(DrawItemEventArgs e)
151 {
152 if (btnList.Count <= e.Index)
153 {
154 btnList.Add(new Button());
155 Button btn = btnList[e.Index];
156 btn.BackColor = System.Drawing.Color.LightSkyBlue ;
157 btn.Name = this.Name + "$ItemButton" + e.Index.ToString();
158 btn.Width = 20;
159 btn.Height = 20;
160 btn.ImageAlign = ContentAlignment.MiddleCenter;
161 btn.TextImageRelation = TextImageRelation.ImageAboveText;
162 if (toggleItemList.Count > 0)
163 {
164
165 btn.BackgroundImage = ((ToggleItem)toggleItemList[0]).BGImage;
166 //btn.Width = toggleItemList[0].BGImage.Width;
167 //btn.Height = toggleItemList[0].BGImage.Height;
168 btn.Tag = ((ToggleItem)toggleItemList[0]).Tag;
169 }
170 btn.Parent = this;
171 btn.Click += new EventHandler(ItemButtonClickHandler);
172 }
173 Button bt = btnList[e.Index];
174 bt.Left = this.Width - bt.Width - 20;
175 bt.Top = e.Bounds.Top;
176
177 }
178 /// <summary>
179 /// item button双击事件；
180 /// </summary>
181 /// <param name="sender"></param>
182 /// <param name="e"></param>
183 protected void ItemButtonClickHandler(object sender, EventArgs e)
184 {
185 int index = -1;
186 if (sender is Button)
187 index = this.IndexFromPoint(((Button)sender).Location);
188
189 if (index == -1)
190 return;
191
192 Button btn = sender as Button;
193 ToggleItem togold = new ToggleItem((string)btn.Tag, btn.BackgroundImage);
194 ToggleItem tognew = this.GetNexttoggleItem(togold);
195 //btn.Width = tognew.BGImage.Width;
196 //btn.Height = tognew.BGImage.Height;
197 btn.BackgroundImage = tognew.BGImage;
198
199 btn.Tag = tognew.Tag;
200
201 ItemEventHandler handler = (ItemEventHandler)Events[ItemLabelClickObj];
202 if (handler != null)
203 {
204
205 handler(sender, new ItemButtonClickEventArgs(index)); ;
206 }
207 }
208
209
210
211
243 }
244 [Serializable]
245 public class ToggleItem
246 {
247 private string tag;
248 private Image bgImage;
249 public ToggleItem()
250 {
251 }
252 public ToggleItem(string tag, Image bg)
253 {
254 this.tag = tag;
255 this.bgImage = bg;
256 }
257 public string Tag
258 {
259 get
260 {
261 return tag;
262 }
263 set
264 {
265 tag = value;
266 }
267 }
268
269 public Image BGImage
270 {
271 get
272 {
273 return bgImage;
274 }
275
276 set
277 {
278 bgImage = value;
279
280 }
281 }
282
283 }
284
285
}
本文转自破狼博客园博客，原文链接：http://www.cnblogs.com/whitewolf/archive/2009/09/30/1577101.html，如需转载请自行联系原作者