javascript function firing after sever side event

Question

1.00/5 (1 vote)

See more:

I need to fire javascript function before than server side event

C#

<asp:Button ID="btnFare" runat="server" Text="Calculate Fare" onclick="btnFare_Click"/>

protected void btnFare_Click(object sender, EventArgs e)
{

ClientScript.RegisterStartupScript(GetType(), "Javascript", "javascript:initialize(); ",true);


double farecharges;
double distance;
distance=Convert.ToDouble(lblDistance.Value);

}

here server side event is firing first that it is not getting "lblDistance" value.

what should i do to make sure that javascript function fires first.

Posted 8-Apr-12 21:32pm

Member 8150795

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Rahul Rajat Singh · Answer 1 · 2012-04-08T21:56:00

Do the RegisterStartupScript in form load. also the button click should contain the OnClientClick method set to call this initialize() method.

Rgiht now you are spitting the java script on button click which is essentially happening on server. yuo need to have javascript ready before button click i,e, page load and then the onclientclick will first call javascript function on client and then the server-side function will be invoked.