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How to attach a src to a iframe

I have a iFrame control on an ASP.NET aspx page.
I need to add a src value to the control. Currently it is blank

<iframe id="printFrame" runat="server" style="width:0px;height:0px" src="" ></iframe>

The src is a pdf file that is created dynamically with the Session.SessionId appended.
Example if the Session.SessionID is "zjr5j5mw1ti1ym45o2ilkc45", then the file will be stored on the server as

zjr5j5mw1ti1ym45o2ilkc45.pdf in some location under the application.

Example ./PDFFiles/zjr5j5mw1ti1ym45o2ilkc45.pdf

Can I do something like this and point the src to some location of the file

<iframe id="printFrame" runat="server" style="width:0px;height:0px" src='<%#Concat(./PDFFiles/Session.SessionID.Value,.pdf %>) ></iframe>

Dennis Maeder

You can dynamically (or programatically) change the source of an iframe by reassigning the src.
e.g.
<iframe id='myframe' src='test1.html' width=100 height=100></iframe>
<button onclick='document.getElementById("myframe").src="test2.pdf"'>?</button>
D

countrymeister

ASKER

Well, maybe my question is very generic, but I have tried my best to explain what needs to be done.
I very well know how to do the simple stuff as adding a basic src, what I need is to attach a Session.SessionID. alonwith the path name of he location of the src.
I am not a javscript/html expert and need to know if the following will work

Can I do something like this and point the src to some location of the file

<iframe id="printFrame" runat="server" style="width:0px;height:0px" src='<%#Concat(./PDFFiles/Session.SessionID.Value,.pdf %>) ></iframe>

Dennis Maeder

yes. But you will need to "quote" your path. Which scripting language is that? Syntax may vary.
<%#Concat("./PDFFiles/Session.SessionID.Value",".pdf" %>)
in PHP it would be somewhat different.
<?php echo $_SERVER["DOCUMENT_ROOT"]."/PDFFiles/Session.SessionID.Value".".pdf"; ?>

D

countrymeister

ASKER

I need the solution in ASP.NET

ahoffmann

don't know what exactly your Concat() returns as result, but you src= attribute most likely need to look like:
src='<%#Concat(./PDFFiles/Session.SessionID.Value,.pdf) %>'
or
src="<%#Concat(./PDFFiles/Session.SessionID.Value,.pdf) %>"

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Dennis Maeder

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countrymeister

ASKER

Dennis,

It gives me an error stating - Too many characters in character literal, when I do a build.

So I did the following
<iframe id="printFrame" runat="server" style="width:0px;height:0px" src="~/PDFFiles/<%#Response.Write(Session.SessionID.Value) %>.pdf"> ></iframe>

I believe with ASP.NET 2.0 you can add a runat="server" for an HTML tag.

Thanks for your help

Dennis Maeder

countrymeister,
I am glad you sorted out the runat and that things are working now.
D