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

Format timestamp from mysql
When I tried this:
Code: date("m/d/Y H:i A", $row['timestamp'])
I got 12/31/1969 18:

How can I uploading Transactional Data from Legacy to New SAP system
Hell Gurus,

I am overwhelmed with questions on how to migrate huge volume of Sales Orders

socket communication between c++/java and sending image
hi,

i have a class in c++ called win32_sockserver which creates socket to java. i am trying

php/xmlrpc class issue
I am working on xml-rpc in php to start with.

I have a class that only has variables defined

simple script won't work. Please help
I'm new to php, and I am having trouble displaying a simple script in my web browser. My php code ex

extending tidy
I have problem with type-hinting and extending tidy. This code creates error:
Code: class cMyTidy

Asset Transfer from One plant to another within same company code
Hi,

Please advise how to transfer one asset from one plant to another plant within same c

Echo Tweaking help!
HI. I would like to have the output of the entered variables repeat forever, but it's stopping at th

Text to picture Generator
Hello, i have found this script and it works really good^^ But i have one problem, i would like to c

modifying a property of an object from a different class
I have 2 classes:
- Math
- Distance

in my math class, I have this line:
$distance =