<% @ Page Language = "C #" autoeventwireup = "true" codefile = "uploadfile. aspx. cs" inherits = "uploadfile" %>
<! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<HTML xmlns = "http://www.w3.org/1999/xhtml">
<Head runat = "server">
<Title> No title page </title>
<SCRIPT src = "resource/jquery/jquery-1.4.1.min.js" type = "text/JavaScript"> </SCRIPT>
<SCRIPT type = "text/JavaScript">
Jquery. Extend ({
Createuploadiframe: function (ID, Uri ){
// Create Frame
VaR frameid = "uploadframe ";
If (ID! = Undefined & ID! = ""){
Frameid = ID;
}
If (window. activexobject ){
VaR IO = Document. createelement ('<IFRAME id = "' + frameid + '" name = "' + frameid + '"/> ');
If (typeof uri = 'boolean '){
Io. src = 'javascript: false ';
} Else if (typeof uri = 'string '){
Io. src = URI;
}
} Else {
VaR IO = Document. createelement ('iframe ');
Io. ID = frameid;
Io. Name = frameid;
Io. src = URI;
}
Io. style. Position = 'absolute ';
Io. style. Top = '-1000px ';
Io. style. Left = '-1000px ';
Document. Body. appendchild (IO );
Return Io
},
Createuploadform: function (ID, Uri ){
// Create form
VaR formid = "uploadform ";
If (ID! = Undefined & ID! = ""){
Formid = ID;
}
VaR form = $ ('<form action = "' + URI + '" method = "Post" name = "' + formid + '" id = "' + formid + '" enctype = "multipart/form-Data"> </form> ');
// Set form attributes
Parameters (form).css ('position', 'absolute ');
((Form).css ('top', '500px ');
Optional (form).css ('left', '100px ');
$ (Form). appendto ('body ');
Return form;
},
Clonefilestocreatedform: function (oldformid, createdformid ){
VaR form = $ ("#" + createdformid );
$ ("#" + Oldformid + "input [type = file]"). Each (function (I ){
// Clone each file and append the old file control to the created form.
// Reset newid, new name and append old file control to the created form that only for fix ie bug.
Alert ("ID:" + $ (this). ATTR ("ID") + "name:" + $ (this). ATTR ("name "));
VaR newid = (new date (). gettime (). tostring ();
VaR clonefile = $ (this). Clone ();
$ (Clonefile). ATTR ('id', newid );
$ (Clonefile). ATTR ('name', newid );
$ (This). Before (clonefile );
Alert ('1 ');
$ (This). appendto (form );
Alert ("ID:" + $ (this). ATTR ("ID") + "name:" + $ (this). ATTR ("name "));
});
},
Iframeuploadfiles: function (s ){
// Todo introduce global settings, allowing the client to modify them for all requests
S = jquery. Extend ({}, jquery. ajaxsettings, S );
// Get ID for create form and IFRAME.
VaR id = new date (). gettime ();
VaR frameid = 'uploadframe '+ ID;
VaR formid = 'uploadform' + ID;
VaR form = jquery. createuploadform (formid, S. url );
VaR frame = jquery. createuploadiframe (frameid, S. secureuri );
If (S. defaultform! = Undefined & S. defaultform! = ""){
Jquery. clonefilestocreatedform (S. defaultform, formid );
}
// Submit the form.
Try {
$ (Form). ATTR ('action', S. url );
$ (Form). ATTR ('method', 'post ');
$ (Form). ATTR ('target', frameid );
If (Form. Encoding ){
Form. Encoding = 'multipart/form-data ';
} Else {
Form. enctype = 'multipart/form-data ';
}
$ (Form). Submit ();
} Catch (e ){
Alert ('upload files happened error! ');
}
}
});
</SCRIPT>
<SCRIPT type = "text/JavaScript">
Function uploadallfiles (){
$. Iframeuploadfiles ({
URL: 'uploadfilehandler. ashx ',
Defaultform: 'form1 ',
Secureuri: false
})
}
</SCRIPT>
</Head>
<Body>
<Form ID = "form1" runat = "server">
<Div>
<Div id = "uploadfileswrapper" style = "border: solid 1px #369;">
<P class = "uploadfile">
<Input type = "button" value = "add" style = "width: 100px; Height: 30px;" onclick = "AddFile ('uploadfileswrapper')"/>
<Input type = "button" id = "buttonupload" style = "width: 100px; Height: 30px;" value = "Upload" onclick = "uploadallfiles ()"/>
</P>
<P>
<Input id = "uploadfiledefault" type = "file" size = "50" name = "uploadfiledefault"/>
</P>
<P>
<Input type = "button" onclick = "getfilename ($ ('# filetoupload')" value = "Get file path"/>
<Input type = "button" onclick = "removefilepath ($ ('# filetoupload')" value = "Remove file path"/>
</P>
<Input type = "Submit" value = "Submit to current form"/>
<Input type = "text" name = "tst1"/>
<Input type = "radio" name = "tst2"/>
</Div>
</Div>
</Form>
<Div id = "ajaxmsg"> </div>
<SCRIPT type = "text/JavaScript">
// Show upload files result
Function showmessageforuploadfile (MSG ){
$ ("# Ajaxmsg" cmd.html (MSG );
}
// Get Upload File name by path.
Function getfilenamebypath (PATH ){
// Get path
If (Path = undefined | Path = ""){
Return "";
} Else {
VaR Index = path. lastindexof ("\\");
If (index> 0 ){
Return Path. substring (index + 1, path. Length );
} Else {
Return path;
}
}
}
// Create input of File
Function AddFile (target ){
// Create input type = 'file'
VaR filename = (new date (). gettime ();
VaR P = Document. createelement ("p ");
Var file = Document. createelement ("input ");
File. setattribute ("type", "file ")
File. setattribute ("name", filename)
File. setattribute ("ID", filename );
File. setattribute ("size", "50 ")
P. appendchild (file)
VaR button = Document. createelement ("input ");
Button. setattribute ("type", "button ");
Button. setattribute ("value", "Remove ")
$ (Button). Click (function (){
Removeeachfile (this)
});
P. appendchild (button );
Document. getelementbyid (target). appendchild (P );
}
// Remove the each file container with file input
Function removeeachfile (o ){
While (O. tagname! = "P "){
O = O. parentnode;
}
O. parentnode. removechild (O );
}
// Removed value of file contorl
Function removefilepath (OBJ ){
VaR objfile = $ (OBJ) [0];
Objfile. outerhtml = objfile. outerhtml. Replace (/(value = \ "). + \"/I, "$1 \"");
}
// Get
Function getfilename (o ){
VaR name = getfilenamebypath ($ (O). Val ());
}
</SCRIPT>
</Body>
</Html>
// Ashx
<% @ Webhandler Language = "C #" class = "uploadfilehandler" %>
Using system;
Using system. Web;
Public class uploadfilehandler: ihttphandler {
Public void processrequest (httpcontext context)
{
Httprequest request = context. request;
Httpresponse response = context. response;
Httpserverutility Server = context. server;
// Specify the output header and encoding
Response. contenttype = "text/html ";
Response. charset = "UTF-8 ";
Httpfilecollection fileconnection = request. files;
Foreach (string ctlname in fileconnection)
{
// Obtain the uploaded file
String newfilename = guid. newguid (). tostring ();
Httppostedfile file = fileconnection [ctlname];
// Use guid to generate a new file name
If (file. filename = "")
{
// File not uploaded
// Response. Write ("<SCRIPT> parent. showmessageforuploadfile (''); </SCRIPT> ");
}
// Output Js. Use the parent object to obtain the reference of the parent page.
Else
{
// Save the file
Newfilename + = system. Io. Path. getextension (file. filename); // Add the extension.
Try
{
File. saveas (server. mappath ("~ /Uploadfiles/"+ newfilename ));
// Response. Write ("<SCRIPT> parent. showmessageforuploadfile ('upload file success. ') </SCRIPT> ");
}
Catch
{
// Response. Write ("<SCRIPT> alert ('failed to save the file! \ N check whether the folder has write permission! '); </SCRIPT> ");
}
}
}
Response. Write ("<SCRIPT> parent. showmessageforuploadfile ('upload file success. ') </SCRIPT> ");
}
Public bool isreusable {
Get {
Return false;
}
}
}
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