ASP.NET弹出打开保存文件对话框代码,Asp.Net代码库,德仔网

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【Asp.Net】 ASP.NET弹出打开保存文件对话框
作者:Dezai.CN / 发布于2012/7/18/ 491
ASP.NET弹出打开保存文件对话框
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//fileURL为带路径的文件全名
System.IO.FileInfo fileInfo = new System.IO.FileInfo(fileURL);
Response.Clear();
Response.AddHeader("content-disposition","attachment;filename="+Server.UrlEncode(fileInfo.Name.ToString()));
Response.AddHeader("content-length",fileInfo.Length.ToString());
Response.ContentType = "application/octet-stream";
Response.ContentEncoding = System.Text.Encoding.Default;
Response.WriteFile(fileURL);

无错版:
<span style="color: rgb(0, 0, 255);">try</span><span style="color: rgb(0, 0, 0);">
</span><span><span style="color: rgb(0, 0, 0);">   {
FullFileName </span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);"> Server.MapPath(FileName);  </span><span style="color: rgb(0, 128, 0);">//</span><span style="color: rgb(0, 128, 0);">FileName--要下载的文件名</span><span style="color: rgb(0, 128, 0);">
</span><span style="color: rgb(0, 0, 0);">   FileInfo  DownloadFile</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);"> </span><span style="color: rgb(0, 0, 255);">new</span><span style="color: rgb(0, 0, 0);"> FileInfo(FullFileName);
</span><span style="color: rgb(0, 0, 255);">if</span><span style="color: rgb(0, 0, 0);">(DownloadFile.Exists)
</span><span><span style="color: rgb(0, 0, 0);">     {
Response.Clear();
Response.ClearHeaders();
Response.Buffer</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 255);">false</span><span style="color: rgb(0, 0, 0);">;
Response.ContentType</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">"</span><span style="color: rgb(0, 0, 0);">application/octet-stream</span><span style="color: rgb(0, 0, 0);">"</span><span style="color: rgb(0, 0, 0);">;
Response.AppendHeader(</span><span style="color: rgb(0, 0, 0);">"</span><span style="color: rgb(0, 0, 0);">Content-Disposition</span><span style="color: rgb(0, 0, 0);">"</span><span style="color: rgb(0, 0, 0);">,</span><span style="color: rgb(0, 0, 0);">"</span><span style="color: rgb(0, 0, 0);">attachment;filename=</span><span style="color: rgb(0, 0, 0);">"</span><span style="color: rgb(0, 0, 0);">
</span><span style="color: rgb(0, 0, 0);">+</span><span style="color: rgb(0, 0, 0);">HttpUtility.UrlEncode(DownloadFile.FullName,System.Text.Encoding.ASCII));

Response.AppendHeader(</span><span style="color: rgb(0, 0, 0);">"</span><span style="color: rgb(0, 0, 0);">Content-Length</span><span style="color: rgb(0, 0, 0);">"</span><span style="color: rgb(0, 0, 0);">,DownloadFile.Length.ToString());
Response.WriteFile(DownloadFile.FullName);
Response.Flush();

Response.End();
}</span></span><span style="color: rgb(0, 0, 0);">
</span><span style="color: rgb(0, 0, 255);">else</span></span><span><span><span style="color: rgb(0, 0, 0);">{
</span><span style="color: rgb(0, 128, 0);">//</span><span style="color: rgb(0, 128, 0);">文件不存在</span><span style="color: rgb(0, 128, 0);">
</span><span style="color: rgb(0, 0, 0);">    }</span></span><span style="color: rgb(0, 0, 0);">
}</span></span><span style="color: rgb(0, 0, 0);">
<img align="top" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif" alt="" /></span><span style="color: rgb(0, 0, 255);">catch</span><span><span style="color: rgb(0, 0, 0);">{
</span><span style="color: rgb(0, 128, 0);">//</span><span style="color: rgb(0, 128, 0);">文件不存在</span><span style="color: rgb(0, 128, 0);">
</span><span style="color: rgb(0, 0, 0);">}</span></span><span style="color: rgb(0, 0, 0);"> </span>
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　打开保存文件对话框　
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