Upload. aspx
<% @ Page Language = "C #" codebehind = "Upload. aspx. cs" autoeventwireup = "false" inherits = "webportal. Upload" %>
<! Doctype HTML public "-// W3C // dtd html 4.0 transitional // en">
<HTML>
<Head>
<Title> Multifile upload </title>
<S required language = "javas alias">
Function AddFile ()
{
VaR STR = '<input type = "file" size = "50" name = "file">'
Document. getelementbyid ('myfile'). insertadjacenthtml ("beforeend", STR)
}
</S response>
</Head>
<Body>
<Form ID = "form1" method = "Post" runat = "server" enctype = "multipart/form-Data">
<Div align = "center">
<H3> Multifile upload <P id = "myfile"> <input type = "file" size = "50" name = "file"> </P>
<P>
<Input type = "button" value = "add" onclick = "AddFile ()">
<Input onclick = "This. Form. Reset ()" type = "button" value = "RESET (reset)">
<Asp: button runat = "server" text = "Start upload" id = "uploadbutton"> </ASP: button>
</P>
<P>
<Asp: Label id = "strstatus" runat = "server" font-names = "" font-bold = "true" font-size = "9pt"
Width = "500px" borderstyle = "NONE" bordercolor = "white"> </ASP: Label>
</P>
</Div>
</Form>
</Body>
</Html>
Upload. aspx. CS
Using system;
Using system. collections;
Using system. componentmodel;
Using system. Data;
Using system. drawing;
Using system. Web;
Using system. Web. sessionstate;
Using system. Web. UI;
Using system. Web. UI. webcontrols;
Using system. Web. UI. htmlcontrols;
Namespace webportal
{
/// <Summary>
/// Summary of upload.
/// Multifile upload
/// </Summary>
Public class upload: system. Web. UI. Page
{
Protected system. Web. UI. webcontrols. Button uploadbutton;
Protected system. Web. UI. webcontrols. Label strstatus;
Private void page_load (Object sender, system. eventargs E)
{
/// Place the user hereCodeTo initialize the page
If (this. ispostback) This. saveimages ();
}
Private Boolean saveimages ()
{
/// 'Traverse the file form Element
Httpfilecollection files = httpcontext. Current. Request. files;
/// 'Status Information
System. Text. stringbuilder strmsg = new system. Text. stringbuilder ();
Strmsg. append ("the uploaded files are: <HR color = Red> ");
Try
{
For (INT ifile = 0; ifile <files. Count; ifile ++)
{
/// 'Check the extension name of the file
Httppostedfile postedfile = files [ifile];
String filename, fileextension;
Filename = system. Io. Path. getfilename (postedfile. filename );
If (filename! = "")
{
Fileextension = system. Io. Path. getextension (filename );
Strmsg. append ("type of the uploaded file:" + postedfile. contenttype. tostring () + "<br> ");
Strmsg. append ("client file address:" + postedfile. filename + "<br> ");
Strmsg. append ("file name to be uploaded:" + filename + "<br> ");
Strmsg. append ("File Upload Extension:" + fileextension + "<br> <HR> ");
/// 'Can be saved to different folders based on different extension names
/// Note: you may need to modify the anonymous write permission of your folder.
Postedfile. saveas (system. Web. httpcontext. Current. Request. mappath ("images/") + filename );
}
}
Strstatus. Text = strmsg. tostring ();
Return true;
}
Catch (system. Exception ex)
{
Strstatus. Text = ex. message;
Return false;
}
}
# Code generated by region web Form Designer
Override protected void oninit (eventargs E)
{
//
// Codegen: This call is required by the ASP. NET web form designer.
//
Initializecomponent ();
Base. oninit (E );
}
/// <Summary>
/// The designer supports the required methods-do not use the code editor to modify
/// Content of this method.
/// </Summary>
Private void initializecomponent ()
{
This. ID = "Upload ";
This. Load + = new system. eventhandler (this. page_load );
}< BR ># endregion
}< BR >}
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