We help IT Professionals succeed at work.

using __doPostBack to fire linkbutton server-side event within an updatepanel postback

dbruzzone79 asked
Last Modified: 2013-11-07
i have a linkbutton in an updatepanel with a server-side event tied to the Click event of the linkbutton. under normal circumstances this is fine, however, i would like to fire some client-side functions prior to the postback of the updatepanel. i figured the best way to do this is by calling  __doPostBack myself within a simple javascript function. my problem is two-fold: one, the page is posting back twice and two, the server-side event isnt being fired. i realize that the linkbuttons's event isnt wired up but i am not sure how to do so. also, why would the page post back twice?

does this make sense or do you need more explanation?
<asp:updatepanel id="actionUpdatePanel" runat="server">
<asp:linkbutton id="takeActionAndSaveButton" runat="server" />
takeActionAndSaveButton.Attributes.Add("onclick", String.Format("ManualPostBack('{0}', '')", actionUpdatePanel.ClientID));
function ManualPostBack(postBackControlId, serverEvent)
    __doPostBack(postBackControlId, '');
protected void takeActionAndSaveButton_Click(object s, EventArgs 

Open in new window

Watch Question

This one is on us!
(Get your first solution completely free - no credit card required)


that is an excellent idea. i've moved off this project for the week (not extremely urgent) but i will try it out next week and let you know if it solved my issue.


joechina - i tried your suggestion and it resolved the double-post back issue but i'm still having problems with the server-side event. i abandoned that route for another alternative. thank you for the help.

Gain unlimited access to on-demand training courses with an Experts Exchange subscription.

Get Access
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
Empower Your Career
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

Ask ANY Question

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

  • Troubleshooting
  • Research
  • Professional Opinions
Unlock the solution to this question.
Join our community and discover your potential

Experts Exchange is the only place where you can interact directly with leading experts in the technology field. Become a member today and access the collective knowledge of thousands of technology experts.

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.


Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.