Solved

File Download Dialogue box

Posted on 2009-05-11
4
769 Views
Last Modified: 2012-05-06
Hi!
I have a generic download page which all my download links will point to.
It will take in some paremeters to do some checking but that is not the problem.

I need to do a "File Download" dialogue box which will allow the user to either save or open.

What i am encountering is...
If i upload a 2MB file, if i chose to save or open in the file download dialogue box, the file will be corrupted.
If i choose to save the file down, it will NOT be 2MB but maybe 1.6MB.

Any advice?
SPWeb web = SPContext.Current.Web;
web.AllowUnsafeUpdates = true;
string contentType = "";
 
string url = http://mydomain.com/libraryname/foldername/document.doc
 
            SPFile tempFile = web.GetFile(url);
 
            byte[] obj = (byte[])tempFile.OpenBinary();
 
            switch (casestring)
            {
 
                case "txt":
 
                    contentType = "text/plain";
 
                    break;
 
                case "htm": contentType = "text/html";
 
                    break;
 
                case "html": contentType = "text/html";
 
                    break;
 
                case "rtf": contentType = "text/richtext";
 
                    break;
 
                case "jpg": contentType = "image/jpeg";
 
                    break;
 
                case "jpeg": contentType = "image/jpeg";
 
                    break;
 
                case "gif": contentType = "image/gif";
 
                    break;
 
                case "bmp": contentType = "image/bmp";
 
                    break;
 
                case "mpg": contentType = "video/mpeg";
 
                    break;
 
                case "mpeg": contentType = "video/mpeg";
 
                    break;
 
                case "avi": contentType = "video/avi";
 
                    break;
 
                case "pdf": contentType = "application/pdf";
 
                    break;
 
                case "doc": contentType = "application/msword";
 
                    break;
 
                case "dot": contentType = "application/msword";
 
                    break;
 
                case "csv": contentType = "application/vnd.msexcel";
 
                    break;
 
                case ".xls": contentType = "application/vnd.msexcel";
 
                    break;
 
                case ".xlt": contentType = "application/vnd.msexcel";
 
                    break;
 
                default: contentType = "application/octet-stream";
 
                    break;
 
            }
 
            HttpContext.Current.Response.ClearContent();
            HttpContext.Current.Response.ClearHeaders();
            HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename= " + DocName);
            HttpContext.Current.Response.ContentType = contentType;
 
            //Check that the client is connected and has not closed the connection after the request
 
            if (HttpContext.Current.Response.IsClientConnected)
                HttpContext.Current.Response.BinaryWrite(obj);
 
            HttpContext.Current.Response.Flush();
            HttpContext.Current.Response.Close();

Open in new window

0
Comment
Question by:darenceang
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 17

Expert Comment

by:GreatGerm
ID: 24361420
I guess I'm curious as to why you aren't using the OOB document library interface?
0
 
LVL 4

Author Comment

by:darenceang
ID: 24361681
Hi GreatGerm!

What u mean by OOB document library interface?
Sorry... noob
:(
0
 
LVL 17

Expert Comment

by:GreatGerm
ID: 24363802
SharePoint has a decent interface in its document library list type that handles what you're wanting to do.  You can either just use it in the list or use their script to handle it at runtime.  You can see how it's setup by looking at any document library, but I have also included the page code that it uses.
 
<TR class="ms-alternating">
	<TD Class="ms-vb-icon">
		<A TABINDEX=-1 HREF="/sites/sitename/doclibrary/fileName.aspx" onclick="return DispEx(this,event,'TRUE','FALSE','FALSE','','0','SharePoint.OpenDocuments','SharePoint.WebPartPage.Document','1','','324','0','0','0x7fffffffffffffff')">
			<IMG BORDER=0 ALT="fileName.aspx" title="fileName.aspx" SRC="/_layouts/images/icsmrtpg.gif">
		</A>
	</TD>
	<TD Class="ms-vb-title" height="100%">
		<table height="100%" cellspacing=0 class="ms-unselectedtitle" onmouseover="OnItem(this)" CTXName="ctx1" Id="5" Url="/sites/sitename/doclibrary/fileName.aspx" DRef="sites/sitename/doclibrary" Perm="0x7fffffffffffffff" Type="SharePoint.WebPartPage.Document" Ext="aspx" Icon="icsmrtpg.gif|Microsoft Office SharePoint Designer|SharePoint.OpenDocuments" OType="0" COUId="" SRed="1" COut="0" HCD="" CSrc="" MS="0" CType="Document" CId="0x010100626BBFC9A12B5D40966CF75650AD5A0E" UIS="512" SUrl="">
			<tr>
				<td width="100%" Class="ms-vb">
					<A onfocus="OnLink(this)" HREF="/sites/sitename/doclibrary/fileName.aspx" onclick="return DispEx(this,event,'TRUE','FALSE','FALSE','','0','SharePoint.OpenDocuments','SharePoint.WebPartPage.Document','1','','324','0','0','0x7fffffffffffffff')">
						fileName
						<img src="/_layouts/images/blank.gif" class="ms-hidden" border=0 width=1 height=1 alt="Use SHIFT+ENTER to open the menu (new window).">
					</A>
				</td>
				<td>
					<img src="/_layouts/images/blank.gif" width=13 style="visibility:hidden" alt="">
				</td>
			</tr>
		</table>
	</TD>
	<TD Class="ms-vb2">
		<NOBR>12/23/2008 11:03 AM</NOBR>
	</TD>
	<TD Class="ms-vb-user">
		<table cellpadding=0 cellspacing=0 dir="">
			<tr>
				<td style="padding-right: 3px;">
					<a href="javascript:" onclick="IMNImageOnClick();return false;" class="ms-imnlink">
						<img title="" alt="No presence information" name="imnmark" border="0" valign="middle" height="12" width="12" src="/_layouts/images/blank.gif" sip="USER" id="imn2,type=sip" >
					</a>
				</td>
				<td style="padding: 1px 0px 0px 0px;" class="ms-vb">
					<A ONCLICK="GoToLink(this);return false;" HREF="/sites/sitename/_layouts/userdisp.aspx?ID=1">
						USER
					</A>
				</td>
			</tr>
		</table>
	</TD>
</TR>

Open in new window

0
 
LVL 4

Accepted Solution

by:
darenceang earned 0 total points
ID: 24372168
Solved!
The change is Response.End instead of Response.close

This will allow the buffer to finish what it does before closing.
0

Featured Post

[Webinar] How Hackers Steal Your Credentials

Do You Know How Hackers Steal Your Credentials? Join us and Skyport Systems to learn how hackers steal your credentials and why Active Directory must be secure to stop them. Thursday, July 13, 2017 10:00 A.M. PDT

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I thought I'd write this up for anyone who has a request to create an anonymous whistle-blower-type submission form created using SharePoint 2010 (this would probably work the same for 2013). It's not 100% fool-proof but it's as close as you can get…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
This video Micro Tutorial shows how to password-protect PDF files with free software. Many software products can do this, such as Adobe Acrobat (but not Adobe Reader), Nuance PaperPort, and Nuance Power PDF, but they are not free products. This vide…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question