Updating a status label

I have a recently insalled the AJAX Beta 1 and I was wondering if it will enabled me to change a label multiple times in a sub... see the code below.

Protected Sub cmdSubmitUpload_Click(ByVal senderAs Object,ByVal eAs System.EventArgs)Handles cmdSubmitUpload.CliclblUploadStatus.Text ="Saving file on server..."'do the save herelblUploadStatus.Text ="Verifying file..."'call a routine that verifieslblUploadStatus.Text ="File verified."End Sub

I want to change the label and have the user see it change every time.  Is there a way to do this using AJAX?

Hello, the code that you write for an event handler will run on the server when the request is received, and the result of this is one and only one response that will update the page. If you want to provide this kind of feedback, you would need to write more client side code that executes each part of your process separately and can update the label before each step. You can seach msdn for a Whidbey feature called CallBacks that will allow you to do this, or you can make use of Atlas ability to call webservices from script.

Hope this helps,
Federico

Updating multiple controls

I have an asp.net web site. I have many text boxes, drop downs and check boxes that need to be populated based on user input. I have a main text box for them to put in an ID number and a button to run my code. The problem is that the text boxes and check boxes are all over the form so I can't group them in one update panel.

Also, some of the check boxes, drop downs and text boxes can change the data in other controls based on user input. This causes so many post backs under normal conditions. If I put everything in an update panel, isn't that still going to cause just as many post backs?

Putting the whole page in one UpdatePanel will cause pretty much the same amount of data to be sent back to the server (the whole viewstate is always sent) and by the sounds of it pretty much the same amount of data comin back. It would reduce network traffic a bit and get rid of the screen flicker though.

You really need to put just the bits that update in multiple UpdatePanels, they will all get updated when one does. However, I'd go one step further and set all of them to UpdateMode="Conditional" so you can only update the panels you need to when you need to.

Thank you. I looked into that a bit further and also watched a video on multiple update panels. I will try this, conditional updates and add triggers to the update panels. Thanks again.