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<TITLE>AspUpload.com - User Manual. Chapter 2</TITLE>
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<A HREF="manual_memory.html"><IMG BORDER="0" SRC="next.gif" ALIGN="RIGHT" ALT="Chapter 3: Uploading to Memory"></A>
<A HREF="manual_intro.html"><IMG BORDER="0" SRC="previous.gif" ALIGN="RIGHT" ALT="Chapter 1: Introduction"></A>
<B><U><FONT SIZE="3" COLOR="#990000">Chapter 2. Uploading Files and Text Items</FONT></U></B>
<P>
<B><FONT COLOR="#0000A0">A Simple Upload Form</FONT></B>
<BLOCKQUOTE>
The following HTML form (located in the sample file <B>Form1.asp</B>) enables a user to select up to three files for uploading
to the server:
<P>
<TABLE BORDER=1 CELLSPACING=0 CELLPADDING=3>
<TR><TD BGCOLOR="#E0E0E0">
<FONT SIZE="1" FACE="Courier New">
<HTML><BR>
<BODY BGCOLOR="#FFFFFF"><BR>
<FORM METHOD="POST" ENCTYPE="multipart/form-data" ACTION="UploadScript1.asp"><BR>
<INPUT TYPE="FILE" SIZE="40" NAME="FILE1"><BR><BR>
<INPUT TYPE="FILE" SIZE="40" NAME="FILE2"><BR><BR>
<INPUT TYPE="FILE" SIZE="40" NAME="FILE3"><BR><BR>
<INPUT TYPE=SUBMIT VALUE="Upload!"><BR>
</FORM><BR>
</BODY><BR>
</HTML><BR>
</FONT></TD></TR>
</TABLE>
<P>
Notice the <B><FONT SIZE="2" FACE="Courier New">ENCTYPE="multipart/form-data"</FONT></B>
attribute in the <FORM> tag. It instructs the browser to send the entire
file to the server and not just the file name entered in the input text box.
It is absolutely mandatory that your upload forms contain this attribute, or no uploading can be performed.
<P>
This form contains three items <INPUT TYPE="FILE"> which appear on the page
as text boxes with the Browse button next to them. Each box can be used to
select one file only. While the SIZE attribute of an <INPUT TYPE="FILE"> item
is optional, the NAME attribute is required.
<P>
This form invokes the upload script <B>UploadScript1.asp</B> shown below:
<P>
<TABLE BORDER=1 CELLSPACING=0 CELLPADDING=3>
<TR><TD BGCOLOR="#FFFF00">
<FONT SIZE="1" FACE="Courier New">
<HTML><BR>
<BODY><BR>
<%<BR>
Set Upload = Server.CreateObject("Persits.Upload")<BR>
Count = Upload.Save("c:\upload")<P>
Response.Write Count & " file(s) uploaded to c:\upload"<BR>
%><BR>
</BODY><BR>
</HTML>
</FONT></TD></TR>
</TABLE>
<P>
The first line of the ASP script simply creates an instance of the
AspUpload object. The second line calls the <B>Save</B> method of the component
which actually performs the upload: it parses the information POSTed by the
browser, figures out how many files are being uploaded,
and saves them in a specified local directory on the server under their original names.
<P>
The Save method returns the number of files successfully uploaded. In case of an error this method will throw an exception.
<P>
Click the link below to run this code sample:
<P>
<B><A TARGET="_new" HREF="http://localhost/aspupload/02_simple/Form1.asp">http://localhost/aspupload/02_simple/Form1.asp</A></B>
<A HREF="javascript:;" OnClick="open('helppopup.html','','width=400,height=400');"><IMG SRC="help.gif" BORDER="0" ALT="Why is this link not working?"></A>
</BLOCKQUOTE>
<B><FONT COLOR="#0000A0">FILES and FORM Collections</FONT></B>
<BLOCKQUOTE>
Due to the <B>"multipart/form-data"</B> attribute of upload forms,
your ASP script can no longer use the built-in <B>Request.Form</B> collection
to access individual form items.
AspUpload solves this problem by offering two collections of its own, <B>Upload.Files</B>
and <B>Upload.Form</B> to provide access to uploaded files
and text fields, respectively.
<P>
<B>Upload.Files</B> is a collection of <A HREF="object_file.html">UploadedFile</A>
objects which offer access to various properties and attributes of uploaded files,
such as filename, path, size, hash value, etc. The UploadedFile object also offers
many methods which enable you to manipulate uploaded files (copy, move, save to the database,
delete, etc.) Individual items of the collection can be referenced
via numeric or string indices, or iterated through via the For-Each statement.
<P>
<B>Upload.Form</B> is a collection of <A HREF="object_formitem.html">FormItem</A>
objects that represent text fields on an upload form. Upload.Form is similar
to Request.Form and should be used instead of the latter in your upload script.
The FormItem object provides two properties, Name and Value.
<P>
The use of the Files and Form collections is demonstrated by the sample files
<B>Form2.asp</B> and <B>UploadScript2.asp</B>:
<P>
<TABLE BORDER=1 CELLSPACING=0 CELLPADDING=3>
<TR><TD BGCOLOR="#E0E0E0">
<FONT SIZE="1" FACE="Courier New">
<HTML><BR>
<BODY BGCOLOR="#FFFFFF"><BR>
<FORM METHOD="POST" ENCTYPE="multipart/form-data" ACTION="UploadScript2.asp"><BR>
File 1:<INPUT TYPE=FILE NAME="FILE1"><BR>
Description 1:<INPUT TYPE=TEXT NAME="DESCR1"><BR><BR>
File 2:<INPUT TYPE=FILE NAME="FILE2"><BR>
Description 2:<INPUT TYPE=TEXT NAME="DESCR2"><BR><BR>
<INPUT TYPE=SUBMIT VALUE="Upload!"><BR>
</FORM><BR>
</BODY><BR>
</HTML><BR>
</FONT></TD></TR>
</TABLE>
<P>
This form contains both <INPUT TYPE=FILE> and regular <INPUT TYPE=TEXT> items.
It invokes the script <B>UploadScript2.asp</B>:
<P>
<TABLE BORDER=1 CELLSPACING=0 CELLPADDING=3>
<TR><TD BGCOLOR="#FFFF00">
<FONT SIZE="1" FACE="Courier New">
<HTML><BR>
<BODY><P>
<%<BR>
Set Upload = Server.CreateObject("Persits.Upload.1")<BR>
Upload.Save "c:\upload"<BR>
%><P>
Files:<BR><BR>
<%<BR>
For Each File in Upload.Files<BR>
Response.Write File.Name & "= " & File.Path & " (" & File.Size &" bytes)<BR>"<BR>
Next<BR>
%><P>
<P><P>
Other items:<BR><BR>
<%<BR>
For Each Item in Upload.Form<BR>
Response.Write Item.Name & "= " & Item.Value & "<BR>"<BR>
Next<BR>
%><BR>
</BODY><BR>
</HTML>
</FONT></TD></TR>
</TABLE>
<P>
Click the link below to run this code sample:
<P>
<B><A TARGET="_new" HREF="http://localhost/aspupload/02_simple/Form2.asp">http://localhost/aspupload/02_simple/Form2.asp</A></B>
<A HREF="javascript:;" OnClick="open('helppopup.html','','width=400,height=400');"><IMG SRC="help.gif" BORDER="0" ALT="Why is this link not working?"></A>
<P>
The output should look similar to this:<P>
<FONT COLOR="#804000">
Files:<BR>
FILE1=c:\upload\File1.xls (108544 bytes)<BR>
FILE2=c:\upload\File2.zip (211687 bytes)<P>
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