calling javascript function from .net codebehind with a value

Question

I am trying to call a javascript function from asp.net codebehind using onclientclick for a linkbutton. Code is like this:

string x = "redirecttoimagepage"+"("+ y+")";//y has an int value i need and it varies
lnkimagepage.OnClientClick = x;

i need to use the value y in the javascript function for using.

 function redirecttoimagepage(variable)
{
var strURL = "Subpages.aspx?tabID="+variable;
window.open(strURL,"_blank");
return true;
}

Right now, with the code i have shared, it doesnt do anything. After the link is clicked, it stays in the same page. What am i doing wrong? Appreciate all your help guys. Thanks a lot!

Nika G. · Accepted Answer · 2011-06-22 14:04:08Z

4

string x = "redirecttoimagepage"+"('"+ y+"')";
lnkimagepage.Attributes.Add("onclick",x);

EDITED

in addition, just noticed that lnkimagepage is a LinkButton so it will be hard to invoke redirecttoimagepage script as LinkButtons are already associated with __doPostBack jscript. use HyperLink instead of LinkButton

edited Jun 22, 2011 at 14:04

answered Jun 22, 2011 at 13:58

Nika G.

2,3941 gold badge17 silver badges18 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

Domenic Over a year ago

How would this be different from OnClientClick?

Nika G. Over a year ago

@Domenic asp.net 2.0 (and above) have a OnClientClick property, This is basically a shortcut for Attributes[”onclick”]. no differences... its just a way I got used to write a code...

Domenic Over a year ago

OK, then my question is why is this different from the OP's code. I guess the stuff after the edit is relevant, but otherwise it does the exact same thing.

Nika G. Over a year ago

remo did missed the apostrophe, as he had "redirecttoimagepage"+"("+ y+")". the right form is "redirecttoimagepage"+"('"+ y+"')". test urselft the first version wil give u x equals to redirecttoimagepage(value_of_y) while my version gives redirecttoimagepage('value_of_y'). this way jscript redirecttoimagepage is called and value_of_y is passed as parameter

Domenic Over a year ago

Ah! Damn, hard to spot those little apostrophes :P. OK, +1 it is.

Raynos · Accepted Answer · 2011-06-22 13:57:32Z

1

I am trying to call a javascript function from asp.net codebehind using onclientclick for a linkbutton. Code is like this:

Your doing it wrong. The HTTP model is a model of requests. The page talks to the server not the other way around.

If you truly need a bi-directional communication channel use WebSockets

answered Jun 22, 2011 at 13:57

Raynos

170k57 gold badges359 silver badges399 bronze badges

1 Comment

Stilgar Over a year ago

It seems like he's doing it (conceptually right) but his explaination is ridiculous. It seems like he does not know what "to call a function" means.

CoolBeans · Accepted Answer · 2011-07-17 19:04:33Z

0

string x = "redirecttoimagepage"+"('"+ y+"')"; 
lnkimagepage.Attributes.Add("onclick",x);

**in javascript**
window.open("PageName.aspx");

edited Jul 17, 2011 at 19:04

CoolBeans

20.9k10 gold badges88 silver badges102 bronze badges

answered Jun 22, 2011 at 14:11

SaravanaManikandan

1232 silver badges4 bronze badges

Comments

Ovais Khatri · Accepted Answer · 2011-06-22 13:59:44Z

-1

I think you must specify complete url with window.open not just page name.....

answered Jun 22, 2011 at 13:59

Ovais Khatri

3,21118 silver badges15 bronze badges

1 Comment

Domenic Over a year ago

This is false; it works just like any other URL and can be either relative or absolute.

Collectives™ on Stack Overflow

calling javascript function from .net codebehind with a value

4 Answers 4

5 Comments

1 Comment

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

5 Comments

1 Comment

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related