1
using System;
2using System.IO;
3using System.Web;
4using System.Web.UI;
5using System.Web.UI.WebControls;
6
7namespace Webb.WAVE.Controls.Upload
8
...{
9
//该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)
10
11
/**//// <summary>
12 /// WebbUpload 的摘要说明。
13
/// </summary>
14 public class WebbUpload
15 ...{
16 string m_GUID;
17 string m_script;
18 public WebbUpload()
19 ...{
20 this.m_GUID = string.Empty;
21 Script m_script;#region Script m_script;
22 this.m_script = String.Empty;
23 if(WebbHelper.IsAccordantBrowser())
24 ...{
25 this.m_script = @"
26 <script language=javascript>
27 <!--
28 url='${url}$';
29 var submited = false;
30 function openProgress()
31 {
32 if(!submited)
33 {
34 var ary = document.getElementsByTagName('INPUT');
35 var openBar = false;
36 for(var i=0;i<ary.length;i++)
37 {
38 var obj = ary[i];
39 if(obj.type == 'file')
40 {
41 if(obj.value != '')
42 {
43 openBar = true;
44 break;
45 }
46 }
47 }
48 if(openBar)
49 {
50 window.showModelessDialog(url, window, 'status:no;help:no;resizable:no;scroll:no;dialogWidth:398px;dialogHeight:200px');
51 submited = true;
52 }
53 return true;
54 }
55 else
56 {
57 event.srcElement.disabled = true;
58 return false;
59 }
60 }
61 //-->
62 </script>";
63 }
64 else
65 ...{
66 this.m_script = @"
67 <script language=javascript>
68 <!--
69 url='${url}$';
70 var submited = false;
71 function openProgress()
72 {
73 if(!submited)
74 {
75 var ary = document.getElementsByTagName('INPUT');
76 var openBar = false;
77 for(var i=0;i<ary.length;i++)
78 {
79 var obj = ary[i];
80 if(obj.type == 'file')
81 {
82 if(obj.value != '')
83 {
84 openBar = true;
85 break;
86 }
87 }
88 }
89 if(openBar)
90 {
91 var swd = window.screen.availWidth;
92 var sht = window.screen.availHeight;
93 var wd = 398;
94 var ht =170;
95 var left = (swd-wd)/2;
96 var top = (sht-ht)/2;
97 window.open(url,'_blank','status=no,toolbar=no,menubar=no,location=no,height='+ht+',width='+wd+',left='+left+',top='+top, true);
98 submited = true;
99 }
100 return true;
101 }
102 else
103 {
104 event.srcElement.disabled = true;
105 return false;
106 }
107 }
108 //-->
109 </script>";
110 }
111 #endregion
112 }
113
114 /**//// <summary>
115 /// Register progress bar to a button.
116 /// </summary>
117 /// <param name="uploadButton"></param>
118 /// <param name="causesValidation"></param>
119 public void RegisterProgressBar(Button uploadButton, bool causesValidation)
120 ...{
121 if (causesValidation)
122 ...{
123 uploadButton.CausesValidation = false;
124 uploadButton.Attributes["onclick"] = "if (typeof(Page_ClientValidate) == 'function') Page_ClientValidate();if(!Page_BlockSubmit){openProgress();}";
125 }
126 else
127 ...{
128 uploadButton.Attributes["onclick"] = "openProgress();";
129 }
130 UploadStatus uploadStatus = new UploadStatus();
131 uploadStatus.Status = UploadStatus.UploadState.Uploading;
132 this.m_GUID = uploadStatus.UploadGUID;
133 HttpContext.Current.Application[("Upload_Status_"+this.m_GUID)] = uploadStatus;
134 string progressUrl = "progress.ashx?UploadGUID=" + this.m_GUID;
135 this.m_script = this.m_script.Replace("${url}$", progressUrl);
136 Page page = ((Page) WebbHelper.GetContext().Handler);
137 page.RegisterHiddenField("Webb_Upload_GUID", this.m_GUID);
138 page.RegisterStartupScript("ProgressScript", this.m_script);
139 page.Application.Add(("Webb_Upload_GUID"), this.m_GUID);
140 }
141
142 /**//// <summary>
143 ///
144 /// </summary>
145 /// <param name="uploadButton"></param>
146 /// <param name="causesValidation"></param>
147 public void RegisterProgressBar(LinkButton uploadButton, bool causesValidation)
148 ...{
149 if (causesValidation)
150 ...{
151 uploadButton.CausesValidation = false;
152 uploadButton.Attributes["onclick"] = "if (typeof(Page_ClientValidate) == 'function') Page_ClientValidate();if(!Page_BlockSubmit){openProgress();}";
153 }
154 else
155 ...{
156 uploadButton.Attributes["onclick"] = "openProgress();";
157 }
158 UploadStatus uploadStatus = new UploadStatus();
159 uploadStatus.Status = UploadStatus.UploadState.Uploading;
160 this.m_GUID = uploadStatus.UploadGUID;
161 HttpContext.Current.Application[("Upload_Status_"+this.m_GUID)] = uploadStatus;
162 string progressUrl = "progress.ashx?UploadGUID=" + this.m_GUID;
163 this.m_script = this.m_script.Replace("${url}$", progressUrl);
164 Page page = ((Page) WebbHelper.GetContext().Handler);
165 page.RegisterHiddenField("Webb_Upload_GUID", this.m_GUID);
166 page.RegisterStartupScript("ProgressScript", this.m_script);
167 page.Application.Add(("Webb_Upload_GUID"), this.m_GUID);
168 }
169// public void RegisterProgressBar(LinkButton uploadButton)
170// {
171// RegisterProgressBar(uploadButton,false);
172// }
173
174 /**//// <summary>
175 /// Register progress bar to a button.
176 /// </summary>
177 /// <param name="uploadButton"></param>
178 /// <param name="causesValidation"></param>
179 public void RegisterProgressBar(WebControl m_controls)
180 ...{
181 //m_controls.Attributes["onclick"] = "if (typeof(Page_ClientValidate) == 'function') { if (Page_ClientValidate() == false) { return false; }} this.disabled = true;openProgress();__doPostBack('btn_upload','');if (typeof(Page_ClientValidate) == 'function') Page_ClientValidate();";
182 m_controls.Attributes["onclick"] = "openProgress();";
183 UploadStatus uploadStatus = new UploadStatus();
184 uploadStatus.Status = UploadStatus.UploadState.Uploading;
185 this.m_GUID = uploadStatus.UploadGUID;
186 HttpContext.Current.Application[("Upload_Status_"+this.m_GUID)] = uploadStatus;
187 string progressUrl = "progress.ashx?UploadGUID=" + this.m_GUID;
188 this.m_script = this.m_script.Replace("${url}$", progressUrl);
189 Page page = ((Page) WebbHelper.GetContext().Handler);
190 page.RegisterHiddenField("Webb_Upload_GUID", this.m_GUID);
191 page.RegisterStartupScript("ProgressScript", this.m_script);
192 page.Application.Add(("Webb_Upload_GUID"), this.m_GUID);
193 }
194
195 public void EnableWebbUpload(bool i_enable)
196 ...{
197 Page page = ((Page) WebbHelper.GetContext().Handler);
198 page.RegisterHiddenField("Webb_Upload_Enable", i_enable.ToString());
199 }
200
201 /**//// <summary>
202 /// Get a uploaded file.
203 /// </summary>
204 /// <param name="name"></param>
205 /// <returns></returns>
206 public UploadFile GetUploadFile(string name)
207 ...{
208 UploadFile uploadFile = new UploadFile(name);
209 return (uploadFile.FileName == string.Empty) ? null : uploadFile;
210 }
211
212 /**//// <summary>
213 ///
214 /// </summary>
215 /// <param name="m_path"></param>
216 public void SetTempPath(string m_path)
217 ...{
218 if(Directory.Exists(m_path))
219 ...{
220 Page page = ((Page) WebbHelper.GetContext().Handler);
221 page.RegisterHiddenField("Webb_Upload_TempPath",m_path);
222 }
223 }
224
225 /**//// <summary>
226 /// Get all uploaded files.
227 /// </summary>
228 /// <param name="name"></param>
229 /// <returns></returns>
230 public UploadFileCollection GetUploadFileList(string name)
231 ...{
232 UploadFileCollection uploadFiles = new UploadFileCollection();
233 string content = WebbHelper.GetContext().Request[name];
234 if ((content == null) || (content == string.Empty))
235 ...{
236 return uploadFiles;
237 }
238 else
239 ...{
240 string[] contentArray = content.Split(',');
241 for (int i = 0; i < contentArray.Length; i++)
242 ...{
243 string curContent = contentArray[i];
244 if(IsEmptyFileContent(curContent)) uploadFiles.Add(new UploadFile(curContent));
245 }
246 }
247 return uploadFiles;
248 }
249 private bool IsEmptyFileContent(string m_content)
250 ...{
251 string[] m_contents = m_content.Split(';');
252 if(m_contents.Length<3)return true;
253 int m_start = m_contents[1].IndexOf("=");
254 if(m_start<0) return false;
255 string m_fileName = m_contents[1].Substring(m_start+1).Replace("\"",string.Empty);
256 if(m_fileName==string.Empty)return false;
257 return true;
258 }
259 }
260
}
261
LargeFileUpload/WebbUpload/WebbUpload.cs，打开代码结构图
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