We help IT Professionals succeed at work.
Get Started

cannot access a control

HLRosenberger
on
237 Views
Last Modified: 2012-05-11
I am successfully referencing other controls on my page like this:

var category = document.getElementById("<%= lstCategory.ClientID %>");

However, this does not work for my SAVE button.  

var btn= document.getElementById("<%= btnSave.ClientID %>");
alert(btn)

Alert displays "null".

So, I displayed the source after the page is rendered.  And this is the ID for the SAVE button:  ctl00_PageContent_btnSave__Button

So, I did this:

var btn= document.getElementById("<%= ctl00_PageContent_btnSave__Button.ClientID %>");

But this fails at runtime with the following error:

'ctl00_PageContent_btnSave__Button' is not declared.

So, if the declared ID is different than the generated ID, how does one reference this control via Javascript??

Thanks.
Comment
Watch Question
CERTIFIED EXPERT
Commented:
This problem has been solved!
Unlock 1 Answer and 8 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE