Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Problem with FormAuthentication.SignOut() when accessed on web server

Posted on 2004-09-20
6
Medium Priority
?
229 Views
Last Modified: 2012-06-27
I have built an asp.net application that I developed on my local machine so that I have been accessing it through my localhost.  The application uses forms authentication and checks username and password values against a database which has all been working fine.  On several of my pages for this application I have a linkbutton control to give the user the option to logout.  The codebehind methods for these buttons are all:
Private Sub lButLogout_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lButLogout.Click
        FormsAuthentication.SignOut()
        Response.Redirect("login.aspx")
    End Sub

Now at first when I clicked on these linkbuttons they would only make the page post back to itself, then I (just guessing around) set the CausesValidation attribute of the linkbutton to False.  That seemed to fix the problem and all the logout linkbuttons were working.  I just transferred the application over to a web server and have been testing the site there and now I have noticed that just one of my linkbuttons is still only making the form post back and is not signing out and taking the user back to the login page.  I checked to make sure the CausesValidation attribute for that linkbutton was false and it is.  So as far as I can tell all my logout linkbuttons are identical but one is not working.  Here is the linkbutton in my html:
<asp:linkbutton id="lButLogout" runat="server" ForeColor="Blue" CausesValidation="False">Logout</asp:linkbutton>
0
Comment
Question by:jacobymatt
  • 2
  • 2
  • 2
6 Comments
 
LVL 15

Expert Comment

by:praneetha
ID: 12105756
just delete that link button and drag and drop a new one and try....

good luck
0
 

Author Comment

by:jacobymatt
ID: 12105997
no, that did not help.  Remember, the linkbutton that is not executing the logout or redirect to the login page works fine when I am accessing the site through my local host, but when I access through the web server I just deployed this application to, this one linkbutton only reposts the page.  One more thing I thought was wierd is that when I hover over the logout linkbutton giving me problems, the javascript message in the bottom left reads: javascript:_doPostBack('lButLogout', ")

But it also displays this message when I hover over the other logout linkbuttons I have created that are working so maybe there's nothing wrong with that.  
0
 
LVL 9

Accepted Solution

by:
hismightiness earned 100 total points
ID: 12106083
It sounds like your postback is getting caught by another event before hitting the handler for the click event OR there is not an event handler written.  My first thought you already covered with the "CausesValidation" property.  

Make sure that all your event handlers are the same as what you posted above and that they all have "Handles buttonid.Click" at the end.  Also, make sure that the ID and "Handles id.Click" are referencing the same button id.  I have found that through regular updates and editing, Visual Studio will sometimes remove the "Handles id.Click" from the Sub when working with the buttons.

On a seperate note, why not put your logout button into one User Control so you only have to worry about one button and one button clicked event?  This would be much easier for you to manage and debug.  All you would have to do is drag and drop the user control onto the pages you wanted the user to be able to log out from.
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 9

Expert Comment

by:hismightiness
ID: 12106103
The mouseover window status is typical depending on the object you are hovering over.  This may sound like a dumb question, but are you updating the files in the bin when making it live on the web server?
0
 
LVL 15

Expert Comment

by:praneetha
ID: 12112434
yeah that means something is not causing the post back....like the cause validation..is the only thing i can see .. so inspite of deleting that button and dragging and dropping the other one it behaves like that...that really is weird...is it only on that page always...?

0
 

Author Comment

by:jacobymatt
ID: 12112531
Well, hismightiness aput me on the right track.  I had a function in my form load that was enclosed with the condition 'if ispostback = false then' so I tried wrapping the signout and redirect code inside a 'if ispostback = true then'  and it worked.  Still dont really have the hang of the postbacks but I guess this is learning.  
0

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

Question has a verified solution.

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

Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
We’ve all felt that sense of false security before—locking down external access to a database or component and feeling like we’ve done all we need to do to secure company data. But that feeling is fleeting. Attacks these days can happen in many w…
Whether it be Exchange Server Crash Issues, Dirty Shutdown Errors or Failed to mount error, Stellar Phoenix Mailbox Exchange Recovery has always got your back. With the help of its easy to understand user interface and 3 simple steps recovery proced…

782 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