How to call server side function from client side JavaScript?

I want to call a server-side function, like a button's click event or just another private or

public function , from a client-side JavaScript function. 

How do I do that?



thanX

Anz
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ClientSideAsp.Net | Blog

Maybe alittle more that you need, but.......



1) Put a button on the page. Lets say its id is Button1. Make sure that its has causesValidation=false

2) Write the code for the button.

3) Write the following in the PAge_Load event



Button1.Attributes.Add("onClick", "myJSFunction(); return false")



4) Copy this javascript onto your page.



function myJSFunction()

{

        //Fix
to get the button to validate the page

        if
(typeof(Page_ClientValidate) == 'function')

        {

                Page_ClientValidate();

        }

        if
(Page_IsValid)

        {

                var answer =
confirm('Do you wish to continue?');

                 if (answer) 

                {

                            //This calls the Button1's server side code

                            __doPostBack('btnButton1','');

                    }

            }

}


Intelligence is a burden.
Jagdip Singh Ajimal
Manchester (and yes, I am a Manchester United fan)

Hi jagdipa 

i didnt understand Page_ClientValidate and Page_IsValid means. Is it a Javascript function defined by me or its an inbuilt capability like serverside Page.IsValid. 

Thanks alot. and if there is any method to call a server side function instead of an event.

Anz



 Gazing through the window at the world outside

Wondering if mother earth will survive

Hoping that mankind will stop abusing her, sometime










													
													
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ClientSideAsp.Net | Blog

If you have validators on the page,
then ASP.NET automatically puts javascript on the page to handle client
side validation. That is where the Page_ClientValidate and Page_IsValid are coming from.

You may have problems with this if you are using anything other that IE
(I havent tested this outside of IE). But, you could simply modify it
to:



function myJSFunction()

{
        //This calls the Button1's server side code

         __doPostBack('btnButton1','');

}



The reason I included this is because people often want client side
validation, and a confirmation box before running the buttons
serverside code. That is what this javascript function was originally
designed for.



As far as I know, there is no way to call a serverside function instead
of an event. But, one way round this could be to just make Button1
invisible in the Page_Load event (Button1.visible = false). That way,
there is no button on the page, but the code for the button click event
is still there.

Intelligence is a burden.
Jagdip Singh Ajimal
Manchester (and yes, I am a Manchester United fan)

I tested your solution ya it works good. Thanks.

ASP.net's inbuilt validators are not working in Mozilla and all so we are using Javascript.










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