Add trigger to UpdatePanel programmatically

Posted on 16th Feb 2014 07:03 pm by admin

Hi,I'm working on a website which uses AJAX and Masterpages. What I have is an AJAX UpdatePanel which contains the ContentPlaceHolder on the MasterPage.However, on one page I have a FileUpload control, which means I have to add the Submit button as a Postback trigger to the UpdatePanel, otherwise the file upload will not work. I've tried doing this both from the MasterPage code file and the Page code file itself without any luck...The code from my masterpage attempt: If Page.Request.RawUrl.Contains("UploadPage.aspx") Then
Dim trigger As UpdatePanelControlTrigger = New PostBackTrigger()
Dim s As Button = page.FindControl("submitBut")
trigger.ControlID = s.ID
up.Triggers.Add(trigger)
End IfWhere up is the id for the update panel.I get an error message saying: A control with ID 'submitBut' could not be found for the trigger in UpdatePanel 'up'.Any help would be greatly appreciated.Thanks in advance
Filed under: updatepanel add trigger programmatically

Your Answer:

Login to answer

Other forums

ECC6 - Single sign-on
We are in the process of upgrading to ECC 6 which will support single sign on with user passwords al

Problems with adding a link to one position in a 'foreach' loop, please help
Hello!

Iam pretty new to programming and I wanna create a table with users from an array. It

Login Control?!
I have a Web Site that uses the login control also I have set the destinationurl to the page I want

imap: how to save a copy of sent emails to sent elements
Hello my friends,

I am writing an online emailing application with inbox outbox/sent elements

Problem with creating FI documents
Hi, Experts!

when i create Fi doc. with standart transaction, i ve been had such problem

Find current logon time
Hi,
in my sql script i want to query and find out the logon time of the current session.
<

Calling variables
I want to call this to my website but it doesn't display what I want it to,

Code: <h5&

Clean URLs
Hi I was wandering if anyone has ever implemented URLs on their PHP run website using URLS like wiki

ALV List display - header width adjust
Hi,

I am using REUSE_ALV_LIST_DISPLAY for my ALV display.The width of the ALV varies for

(sub)screen resize modification doesn't work after ECC 6 EhP 4 installation
Hello,

We have previously extended the size of the custom data tab on PO transaction ME23