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

Retrieving Data from Two Different Databases
Hello All,

Ran into another problem and would appreciate some help! I have two datab

Material Issuing for receiving batch
Dear All experts in MM/ PP,

Material issuing from main stores to factory is currently usi

Sessions work for me and not others?
I'm having a bit of bad luck with sessions. In the past they have worked fine for me, but this time

Adding to the next element in a multidimensional array
Hi, I'm trying to add a value to $node->field_spaces['nid'] where x is the next available spo

Is there a quick way to do this?
Hi all,

I need to create a mysql table from php that goes a little something like this

why preg_match_all does not return the number of matches
My regex looks like

X[^x{4e00}-x{9fa5}]*Y

(where X and Y are two Chinese characters)

Progress bar tracking file downloads
Hey guys, was wondering if there was a way to track how far a file has been downloaded. I know there

tag inside php...
hi


Code: <?php
echo "<td width="$columnWidth%" align=&

Ignore html and bbcode?
I've created a function to limit the amount of text according to the amount of words.

However

Auto-populating dropdowns and multiple forms.
Here's what I have so far:

First drop down = select a state (works)
This populates the sec