自定义控件开发示例
功能设计
开发：
新建控件项目专案
继承相关接口
创建子控件
公开相关 属性 方法 事件
编译生成
使用：
添加引用
因为时间关系 现只将示例源代码写出
本实例开发的是一个由ListBox和6个ImageButton组成的列表组件
通过ImageButton可以控制列表项的增加和删除
以及列表项在列表中的位置
到第一位 上一位 下一位 到最后位
示例代码
1
using#region using
2
using System;
3using System.Web.UI;
4using System.Web.UI.WebControls;
5using System.ComponentModel;
6using System.Drawing;
7using System.Text;
8using System.Collections.Specialized;
9
#endregion
10
11namespace JX_CC_LC
12
{
13
/**//// <summary>
14 /// LC_T01 的摘要描述。
15
/// </summary>
16 [DefaultProperty(""),
17 ToolboxData("<{0}:LC_T01 runat=server></{0}:LC_T01>")]
18 public class LC_T01 : System.Web.UI.WebControls.WebControl, INamingContainer//,IPostBackDataHandler
19 {
20 //声明所要用到的ListBox,ImageButton
21 #region
22 private System.Web.UI.WebControls.ListBox lisb_LcT01;
23 private System.Web.UI.WebControls.ImageButton ibt_Add;
24 private System.Web.UI.WebControls.ImageButton ibt_Del;
25 private System.Web.UI.WebControls.ImageButton ibt_First;
26 private System.Web.UI.WebControls.ImageButton ibt_Pre;
27 private System.Web.UI.WebControls.ImageButton ibt_Next;
28 private System.Web.UI.WebControls.ImageButton ibt_Last;
29 #endregion
30 //声明事件
31 #region
32 public event System.EventHandler addOnClick;
33 //public event System.EventHandler iSelectedIndexChanged;
34 #endregion
35 //创建子控件
36 #region
37 protected override void CreateChildControls()
38 {
39 this.Controls.Clear();
40 子控件创建部分#region 子控件创建部分
41 //this.ClearChildViewState();
42 this.Controls.Add(new LiteralControl("<table Border='0' Cellpadding='0' Cellspacing='0' ><tr><td rowspan=7>"));
43 this.lisb_LcT01 = new ListBox();
44 this.lisb_LcT01.Width = 150;
45 this.lisb_LcT01.Height = 200;
46 //this.lisb_LcT01.AutoPostBack=true;
47 //this.lisb_LcT01.SelectedIndexChanged+=new EventHandler(lisb_LcT01_SelectedIndexChanged);
48 this.lisb_LcT01.ID = this.ID + "_ilistbox";
49 this.lisb_LcT01.MergeStyle(this.ControlStyle);
50 this.Controls.Add(this.lisb_LcT01);
51 this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));
52
53 this.ibt_Add = new ImageButton();
54 this.ibt_Add.ImageUrl = "img/addnew.JPG";
55 this.ibt_Add.Click += new ImageClickEventHandler(ibt_Add_Click);
56 this.Controls.Add(this.ibt_Add);
57 this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));
58
59 this.ibt_Del = new ImageButton();
60 this.ibt_Del.ImageUrl = "img/del.JPG";
61 this.ibt_Del.Attributes.Add("onclick", this.ID + "_del_click();return false;");
62 this.Controls.Add(this.ibt_Del);
63 this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));
64
65 this.ibt_First = new ImageButton();
66 this.ibt_First.ImageUrl = "img/first.JPG";
67 this.ibt_First.Attributes.Add("onclick", this.ID + "_first_click();return false;");
68 this.Controls.Add(this.ibt_First);
69 this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));
70
71 this.ibt_Pre = new ImageButton();
72 this.ibt_Pre.ImageUrl = "img/pre.JPG";
73 this.ibt_Pre.Attributes.Add("onclick", this.ID + "_pre_click();return false;");
74 this.Controls.Add(this.ibt_Pre);
75 this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));
76
77 this.ibt_Next = new ImageButton();
78 this.ibt_Next.ImageUrl = "img/next.JPG";
79 this.ibt_Next.Attributes.Add("onclick", this.ID + "_next_click();return false;");
80 this.Controls.Add(this.ibt_Next);
81 this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));
82
83 this.ibt_Last = new ImageButton();
84 this.ibt_Last.ImageUrl = "img/last.JPG";
85 this.ibt_Last.Attributes.Add("onclick", this.ID + "_last_click();return false;");
86 this.Controls.Add(this.ibt_Last);
87 this.Controls.Add(new LiteralControl("</td></tr></table>"));
88 #endregion
89 //JS 部分
90 #region
91 //del
92 System.Text.StringBuilder strbuild = new StringBuilder();
93 strbuild.Append("<script language='javascript'>");
94 strbuild.Append(" function " + this.ID + "_del_click(){");
95 strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");
96 strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");
97 strbuild.Append(" if(i>0&&j>=0){");
98 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.remove(j);} ");
99 strbuild.Append("} </script>");
100 //first
101 strbuild.Append("<script language='javascript'>");
102 strbuild.Append(" function " + this.ID + "_first_click(){");
103 strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");
104 strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");
105 strbuild.Append(" if(i>1&&j>0){");
106 strbuild.Append(" var tempValue=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value;");
107 strbuild.Append(" var tempText=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text;");
108 strbuild.Append(" for(var h=j;h>0;h--){");
109 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h].value=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h-1].value;");
110 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h].text=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h-1].text;");
111 strbuild.Append(" }");
112 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[0].value=tempValue;");
113 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[0].text=tempText;");
114 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex=0;");
115 strbuild.Append("} }</script>");
116 //pre
117 strbuild.Append("<script language='javascript'>");
118 strbuild.Append(" function " + this.ID + "_pre_click(){");
119 strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");
120 strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");
121 strbuild.Append(" if(i>1&&j>0){");
122 strbuild.Append(" var tempValue=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value;");
123 strbuild.Append(" var tempText=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text;");
124 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j-1].value;");
125 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j-1].text;");
126 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j-1].value=tempValue;");
127 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j-1].text=tempText;");
128 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex=j-1;");
129 strbuild.Append("} }</script>");
130 //next
131 strbuild.Append("<script language='javascript'>");
132 strbuild.Append(" function " + this.ID + "_next_click(){");
133 strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");
134 strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");
135 strbuild.Append(" if(i>1&&j<i-1){");
136 strbuild.Append(" var tempValue=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value;");
137 strbuild.Append(" var tempText=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text;");
138 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j+1].value;");
139 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j+1].text;");
140 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j+1].value=tempValue;");
141 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j+1].text=tempText;");
142 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex=j+1;");
143 strbuild.Append("} }</script>");
144 //last
145 strbuild.Append("<script language='javascript'>");
146 strbuild.Append(" function " + this.ID + "_last_click(){");
147 strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");
148 strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");
149 strbuild.Append(" if(i>1&&j<i-1){");
150 strbuild.Append(" var tempValue=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value;");
151 strbuild.Append(" var tempText=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text;");
152 strbuild.Append(" for(var h=j;h<i-1;h++){");
153 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h].value=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h+1].value;");
154 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h].text=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h+1].text;");
155 strbuild.Append("}");
156 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[i-1].value=tempValue;");
157 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[i-1].text=tempText;");
158 strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex=i-1;");
159 strbuild.Append("} }</script>");
160 this.Controls.Add(new LiteralControl(strbuild.ToString()));
161 #endregion
162 base.CreateChildControls();
163
164 }
165 #endregion
166 //输出
167 #region
168 protected override void Render(HtmlTextWriter writer)
169 {
170 this.EnsureChildControls();
171 base.Render(writer);
172 }
173 #endregion
174 //图像来源控制
175 #region
176 //add
177 [System.ComponentModel.Bindable(true),
178 System.ComponentModel.Category("Appearance"),
179 System.ComponentModel.DefaultValue("img/addnew.JPG")]
180 public string add_src
181 {
182 get
183 {
184 this.EnsureChildControls();
185 return ((ImageButton)Controls[3]).ImageUrl.ToString();
186
187 }
188 set
189 {
190 this.EnsureChildControls();
191 ((ImageButton)Controls[3]).ImageUrl = value;
192 }
193 }
194 //del
195 [Bindable(false),
196 Category("Appearance"),
197 DefaultValue("img/del.JPG")]
198 public string del_src
199 {
200 get
201 {
202 this.EnsureChildControls();
203 return ((ImageButton)Controls[5]).ImageUrl;
204
205 }
206 set
207 {
208 this.EnsureChildControls();
209 ((ImageButton)Controls[5]).ImageUrl = value;
210 }
211 }
212 //first
213 public string first_src
214 {
215 get
216 {
217 this.EnsureChildControls();
218 return ((ImageButton)Controls[5]).ImageUrl;
219
220 }
221 set
222 {
223 this.EnsureChildControls();
224 ((ImageButton)Controls[5]).ImageUrl = value;
225 }
226 }
227 //pre
228 public string pre_src
229 {
230 get
231 {
232 this.EnsureChildControls();
233 return ((ImageButton)Controls[9]).ImageUrl;
234 }
235 set
236 {
237 this.EnsureChildControls();
238 ((ImageButton)Controls[9]).ImageUrl = value;
239 }
240 }
241 //next
242 public string next_src
243 {
244 get
245 {
246 this.EnsureChildControls();
247 return ((ImageButton)Controls[11]).ImageUrl;
248 }
249 set
250 {
251 this.EnsureChildControls();
252 ((ImageButton)Controls[11]).ImageUrl = value;
253 }
254 }
255 //last
256 public string last_src
257 {
258 get
259 {
260 this.EnsureChildControls();
261 return ((ImageButton)Controls[13]).ImageUrl;
262 }
263 set
264 {
265 this.EnsureChildControls();
266 ((ImageButton)Controls[13]).ImageUrl = value;
267
268 }
269 }
270 #endregion
271 //ADD 按键事件
272 #region
273 protected virtual void ibt_Add_Click(object sender, System.Web.UI.ImageClickEventArgs e)
274 {
275
276 EventArgs e_add = new EventArgs();
277 if (this.addOnClick != null)
278 this.addOnClick(this.ibt_Add, e_add);
279
280 }
281 #endregion
282 控件属性部分#region 控件属性部分
283 //iDataSource
284 public object iDataSource
285 {
286 get
287 {
288 this.EnsureChildControls();
289 return ((ListBox)Controls[1]).DataSource;
290 }
291 set
292 {
293 this.EnsureChildControls();
294 ((ListBox)Controls[1]).DataSource = value;
295 }
296 }
297 //DataBind
298 public void iDataBind()
299 {
300 this.EnsureChildControls();
301 ((ListBox)Controls[1]).DataBind();
302 }
303 public string iDataTextField
304 {
305 get
306 {
307 this.EnsureChildControls();
308 return ((ListBox)Controls[1]).DataTextField;
309 }
310 set
311 {
312 this.EnsureChildControls();
313 ((ListBox)Controls[1]).DataTextField = value;
314 }
315
316 }
317 public string iDataValueField
318 {
319 get
320 {
321 this.EnsureChildControls();
322 return ((ListBox)Controls[1]).DataValueField;
323 }
324 set
325 {
326 this.EnsureChildControls();
327 ((ListBox)Controls[1]).DataValueField = value;
328 }
329
330 }
331 //得到目前的索引
332 public int iSelectIndex()
333 {
334 this.EnsureChildControls();
335 int i = ((ListBox)Controls[1]).SelectedIndex;
336 return i;
337 }
338 //得到ITEM的个数
339 public int iCountItem()
340 {
341 this.EnsureChildControls();
342 int i = ((ListBox)Controls[1]).Items.Count;
343 return i;
344 }
345 //添加一个ITEM 到LISTBOX
346 public void iAddItem(string addText, string addValue)
347 {
348 this.EnsureChildControls();
349 ListItem temp = new ListItem();
350 temp.Text = addText.Trim().ToString();
351 temp.Value = addValue.Trim().ToString();
352 ((ListBox)Controls[1]).Items.Add(temp);
353
354 }
355 public void iAddItem(string addText)
356 {
357 this.EnsureChildControls();
358 ListItem temp = new ListItem();
359 temp.Text = addText.Trim().ToString();
360 ((ListBox)Controls[1]).Items.Add(temp);
361
362 }
363
364
365 //返回当前所选的Item项
366 public ListItem iSelectItem()
367 {
368 this.EnsureChildControls();
369 int index = ((ListBox)Controls[1]).SelectedIndex;
370 int i = ((ListBox)Controls[1]).Items.Count;
371 if (index >= 0 && index < i)
372 {
373 return ((ListBox)Controls[1]).Items[index];
374 }
375 else
376 {
377 return null;
378 }
379 }
380 //选择LISTBOX中第index项
381 public ListItem iSelectItem(int index)
382 {
383 this.EnsureChildControls();
384 int i = ((ListBox)Controls[1]).Items.Count;
385 if (index >= 0 && index < i)
386 {
387 return ((ListBox)Controls[1]).Items[index];
388 }
389 else
390 {
391 return null;
392 }
393 }
394 //清空LISTBOX
395 public void iClearItem()
396 {
397 this.EnsureChildControls();
398 ((ListBox)Controls[1]).Items.Clear();
399 }
400 //删除目前的所选值
401 public void iRemoveItem()
402 {
403 this.EnsureChildControls();
404 int i = ((ListBox)Controls[1]).SelectedIndex;
405 if (i >= 0)
406 {
407 ((ListBox)Controls[1]).Items.Remove(((ListBox)Controls[1]).Items[i]);
408 }
409 }
410 public void iRemoveAtItem(int index)
411 {
412 this.EnsureChildControls();
413 int i = ((ListBox)Controls[1]).Items.Count;
414 if (index > 0 && index < i)
415 {
416 ((ListBox)Controls[1]).Items.Remove(((ListBox)Controls[1]).Items[index]);
417 }
418 }
419 //重载宽度
420 #region
421 public override Unit Width
422 {
423 get
424 {
425 return base.Width;
426 }
427 set
428 {
429 base.Width = value;
430 this.EnsureChildControls();
431 ((ListBox)Controls[1]).Width = System.Convert.ToInt32(value.Value * 0.9);
432 }
433 }
434 //重载高度
435 public override Unit Height
436 {
437 get
438 {
439 return base.Height;
440 }
441 set
442 {
443 base.Height = value;
444 this.EnsureChildControls();
445 ((ListBox)Controls[1]).Height = System.Convert.ToInt32(value.Value * 0.98);
446 }
447 }
448 #endregion
449 #endregion
450 }//class
451}//namespace
452
using#region using2
using System;3
using System.Web.UI;4
using System.Web.UI.WebControls;5
using System.ComponentModel;6
using System.Drawing;7
using System.Text;8
using System.Collections.Specialized;9
#endregion10
11
namespace JX_CC_LC12
{13
/**//// <summary>14
/// LC_T01 的摘要描述。15
/// </summary>16
[DefaultProperty(""),17
ToolboxData("<{0}:LC_T01 runat=server></{0}:LC_T01>")]18
public class LC_T01 : System.Web.UI.WebControls.WebControl, INamingContainer//,IPostBackDataHandler19
{20
//声明所要用到的ListBox,ImageButton21
#region22
private System.Web.UI.WebControls.ListBox lisb_LcT01;23
private System.Web.UI.WebControls.ImageButton ibt_Add;24
private System.Web.UI.WebControls.ImageButton ibt_Del;25
private System.Web.UI.WebControls.ImageButton ibt_First;26
private System.Web.UI.WebControls.ImageButton ibt_Pre;27
private System.Web.UI.WebControls.ImageButton ibt_Next;28
private System.Web.UI.WebControls.ImageButton ibt_Last;29
#endregion30
//声明事件31
#region32
public event System.EventHandler addOnClick;33
//public event System.EventHandler iSelectedIndexChanged;34
#endregion35
//创建子控件36
#region37
protected override void CreateChildControls()38
{39
this.Controls.Clear();40
子控件创建部分#region 子控件创建部分41
//this.ClearChildViewState();42
this.Controls.Add(new LiteralControl("<table Border='0' Cellpadding='0' Cellspacing='0' ><tr><td rowspan=7>"));43
this.lisb_LcT01 = new ListBox();44
this.lisb_LcT01.Width = 150;45
this.lisb_LcT01.Height = 200;46
//this.lisb_LcT01.AutoPostBack=true;47
//this.lisb_LcT01.SelectedIndexChanged+=new EventHandler(lisb_LcT01_SelectedIndexChanged);48
this.lisb_LcT01.ID = this.ID + "_ilistbox";49
this.lisb_LcT01.MergeStyle(this.ControlStyle);50
this.Controls.Add(this.lisb_LcT01);51
this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));52
53
this.ibt_Add = new ImageButton();54
this.ibt_Add.ImageUrl = "img/addnew.JPG";55
this.ibt_Add.Click += new ImageClickEventHandler(ibt_Add_Click);56
this.Controls.Add(this.ibt_Add);57
this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));58
59
this.ibt_Del = new ImageButton();60
this.ibt_Del.ImageUrl = "img/del.JPG";61
this.ibt_Del.Attributes.Add("onclick", this.ID + "_del_click();return false;");62
this.Controls.Add(this.ibt_Del);63
this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));64
65
this.ibt_First = new ImageButton();66
this.ibt_First.ImageUrl = "img/first.JPG";67
this.ibt_First.Attributes.Add("onclick", this.ID + "_first_click();return false;");68
this.Controls.Add(this.ibt_First);69
this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));70
71
this.ibt_Pre = new ImageButton();72
this.ibt_Pre.ImageUrl = "img/pre.JPG";73
this.ibt_Pre.Attributes.Add("onclick", this.ID + "_pre_click();return false;");74
this.Controls.Add(this.ibt_Pre);75
this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));76
77
this.ibt_Next = new ImageButton();78
this.ibt_Next.ImageUrl = "img/next.JPG";79
this.ibt_Next.Attributes.Add("onclick", this.ID + "_next_click();return false;");80
this.Controls.Add(this.ibt_Next);81
this.Controls.Add(new LiteralControl("</td></tr><tr><td>"));82
83
this.ibt_Last = new ImageButton();84
this.ibt_Last.ImageUrl = "img/last.JPG";85
this.ibt_Last.Attributes.Add("onclick", this.ID + "_last_click();return false;");86
this.Controls.Add(this.ibt_Last);87
this.Controls.Add(new LiteralControl("</td></tr></table>"));88
#endregion89
//JS 部分90
#region91
//del92
System.Text.StringBuilder strbuild = new StringBuilder();93
strbuild.Append("<script language='javascript'>");94
strbuild.Append(" function " + this.ID + "_del_click(){");95
strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");96
strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");97
strbuild.Append(" if(i>0&&j>=0){");98
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.remove(j);} ");99
strbuild.Append("} </script>");100
//first101
strbuild.Append("<script language='javascript'>");102
strbuild.Append(" function " + this.ID + "_first_click(){");103
strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");104
strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");105
strbuild.Append(" if(i>1&&j>0){");106
strbuild.Append(" var tempValue=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value;");107
strbuild.Append(" var tempText=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text;");108
strbuild.Append(" for(var h=j;h>0;h--){");109
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h].value=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h-1].value;");110
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h].text=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h-1].text;");111
strbuild.Append(" }");112
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[0].value=tempValue;");113
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[0].text=tempText;");114
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex=0;");115
strbuild.Append("} }</script>");116
//pre117
strbuild.Append("<script language='javascript'>");118
strbuild.Append(" function " + this.ID + "_pre_click(){");119
strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");120
strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");121
strbuild.Append(" if(i>1&&j>0){");122
strbuild.Append(" var tempValue=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value;");123
strbuild.Append(" var tempText=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text;");124
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j-1].value;");125
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j-1].text;");126
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j-1].value=tempValue;");127
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j-1].text=tempText;");128
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex=j-1;");129
strbuild.Append("} }</script>");130
//next131
strbuild.Append("<script language='javascript'>");132
strbuild.Append(" function " + this.ID + "_next_click(){");133
strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");134
strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");135
strbuild.Append(" if(i>1&&j<i-1){");136
strbuild.Append(" var tempValue=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value;");137
strbuild.Append(" var tempText=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text;");138
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j+1].value;");139
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j+1].text;");140
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j+1].value=tempValue;");141
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j+1].text=tempText;");142
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex=j+1;");143
strbuild.Append("} }</script>");144
//last145
strbuild.Append("<script language='javascript'>");146
strbuild.Append(" function " + this.ID + "_last_click(){");147
strbuild.Append(" var i=document.all." + this.ID + "_" + this.ID + "_ilistbox.options.length;");148
strbuild.Append(" var j=document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex;");149
strbuild.Append(" if(i>1&&j<i-1){");150
strbuild.Append(" var tempValue=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].value;");151
strbuild.Append(" var tempText=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[j].text;");152
strbuild.Append(" for(var h=j;h<i-1;h++){");153
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h].value=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h+1].value;");154
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h].text=document.all." + this.ID + "_" + this.ID + "_ilistbox.options[h+1].text;");155
strbuild.Append("}");156
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[i-1].value=tempValue;");157
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.options[i-1].text=tempText;");158
strbuild.Append(" document.all." + this.ID + "_" + this.ID + "_ilistbox.selectedIndex=i-1;");159
strbuild.Append("} }</script>");160
this.Controls.Add(new LiteralControl(strbuild.ToString()));161
#endregion162
base.CreateChildControls();163
164
}165
#endregion166
//输出167
#region168
protected override void Render(HtmlTextWriter writer)169
{170
this.EnsureChildControls();171
base.Render(writer);172
}173
#endregion174
//图像来源控制175
#region176
//add177
[System.ComponentModel.Bindable(true),178
System.ComponentModel.Category("Appearance"),179
System.ComponentModel.DefaultValue("img/addnew.JPG")]180
public string add_src181
{182
get183
{184
this.EnsureChildControls();185
return ((ImageButton)Controls[3]).ImageUrl.ToString();186
187
}188
set189
{190
this.EnsureChildControls();191
((ImageButton)Controls[3]).ImageUrl = value;192
}193
}194
//del195
[Bindable(false),196
Category("Appearance"),197
DefaultValue("img/del.JPG")]198
public string del_src199
{200
get201
{202
this.EnsureChildControls();203
return ((ImageButton)Controls[5]).ImageUrl;204
205
}206
set207
{208
this.EnsureChildControls();209
((ImageButton)Controls[5]).ImageUrl = value;210
}211
}212
//first213
public string first_src214
{215
get216
{217
this.EnsureChildControls();218
return ((ImageButton)Controls[5]).ImageUrl;219
220
}221
set222
{223
this.EnsureChildControls();224
((ImageButton)Controls[5]).ImageUrl = value;225
}226
}227
//pre228
public string pre_src229
{230
get231
{232
this.EnsureChildControls();233
return ((ImageButton)Controls[9]).ImageUrl;234
}235
set236
{237
this.EnsureChildControls();238
((ImageButton)Controls[9]).ImageUrl = value;239
}240
}241
//next242
public string next_src243
{244
get245
{246
this.EnsureChildControls();247
return ((ImageButton)Controls[11]).ImageUrl;248
}249
set250
{251
this.EnsureChildControls();252
((ImageButton)Controls[11]).ImageUrl = value;253
}254
}255
//last256
public string last_src257
{258
get259
{260
this.EnsureChildControls();261
return ((ImageButton)Controls[13]).ImageUrl;262
}263
set264
{265
this.EnsureChildControls();266
((ImageButton)Controls[13]).ImageUrl = value;267
268
}269
}270
#endregion271
//ADD 按键事件272
#region273
protected virtual void ibt_Add_Click(object sender, System.Web.UI.ImageClickEventArgs e)274
{275
276
EventArgs e_add = new EventArgs();277
if (this.addOnClick != null)278
this.addOnClick(this.ibt_Add, e_add);279
280
}281
#endregion282
控件属性部分#region 控件属性部分283
//iDataSource284
public object iDataSource285
{286
get287
{288
this.EnsureChildControls();289
return ((ListBox)Controls[1]).DataSource;290
}291
set292
{293
this.EnsureChildControls();294
((ListBox)Controls[1]).DataSource = value;295
}296
}297
//DataBind298
public void iDataBind()299
{300
this.EnsureChildControls();301
((ListBox)Controls[1]).DataBind();302
}303
public string iDataTextField304
{305
get306
{307
this.EnsureChildControls();308
return ((ListBox)Controls[1]).DataTextField;309
}310
set311
{312
this.EnsureChildControls();313
((ListBox)Controls[1]).DataTextField = value;314
}315
316
}317
public string iDataValueField318
{319
get320
{321
this.EnsureChildControls();322
return ((ListBox)Controls[1]).DataValueField;323
}324
set325
{326
this.EnsureChildControls();327
((ListBox)Controls[1]).DataValueField = value;328
}329
330
}331
//得到目前的索引332
public int iSelectIndex()333
{334
this.EnsureChildControls();335
int i = ((ListBox)Controls[1]).SelectedIndex;336
return i;337
}338
//得到ITEM的个数339
public int iCountItem()340
{341
this.EnsureChildControls();342
int i = ((ListBox)Controls[1]).Items.Count;343
return i;344
}345
//添加一个ITEM 到LISTBOX346
public void iAddItem(string addText, string addValue)347
{348
this.EnsureChildControls();349
ListItem temp = new ListItem();350
temp.Text = addText.Trim().ToString();351
temp.Value = addValue.Trim().ToString();352
((ListBox)Controls[1]).Items.Add(temp);353
354
}355
public void iAddItem(string addText)356
{357
this.EnsureChildControls();358
ListItem temp = new ListItem();359
temp.Text = addText.Trim().ToString();360
((ListBox)Controls[1]).Items.Add(temp);361
362
}363
364
365
//返回当前所选的Item项366
public ListItem iSelectItem()367
{368
this.EnsureChildControls();369
int index = ((ListBox)Controls[1]).SelectedIndex;370
int i = ((ListBox)Controls[1]).Items.Count;371
if (index >= 0 && index < i)372
{373
return ((ListBox)Controls[1]).Items[index];374
}375
else376
{377
return null;378
}379
}380
//选择LISTBOX中第index项381
public ListItem iSelectItem(int index)382
{383
this.EnsureChildControls();384
int i = ((ListBox)Controls[1]).Items.Count;385
if (index >= 0 && index < i)386
{387
return ((ListBox)Controls[1]).Items[index];388
}389
else390
{391
return null;392
}393
}394
//清空LISTBOX395
public void iClearItem()396
{397
this.EnsureChildControls();398
((ListBox)Controls[1]).Items.Clear();399
}400
//删除目前的所选值401
public void iRemoveItem()402
{403
this.EnsureChildControls();404
int i = ((ListBox)Controls[1]).SelectedIndex;405
if (i >= 0)406
{407
((ListBox)Controls[1]).Items.Remove(((ListBox)Controls[1]).Items[i]);408
}409
}410
public void iRemoveAtItem(int index)411
{412
this.EnsureChildControls();413
int i = ((ListBox)Controls[1]).Items.Count;414
if (index > 0 && index < i)415
{416
((ListBox)Controls[1]).Items.Remove(((ListBox)Controls[1]).Items[index]);417
}418
}419
//重载宽度420
#region421
public override Unit Width422
{423
get424
{425
return base.Width;426
}427
set428
{429
base.Width = value;430
this.EnsureChildControls();431
((ListBox)Controls[1]).Width = System.Convert.ToInt32(value.Value * 0.9);432
}433
}434
//重载高度435
public override Unit Height436
{437
get438
{439
return base.Height;440
}441
set442
{443
base.Height = value;444
this.EnsureChildControls();445
((ListBox)Controls[1]).Height = System.Convert.ToInt32(value.Value * 0.98);446
}447
}448
#endregion449
#endregion450
}//class451
}//namespace452
posted on 2006-12-08 11:02 freeliver54 阅读(721) 评论(2) 收藏 举报
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