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  1. #1
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    Help - ASP.NET function to Javascript

    Hi experts, just want to ask if it is possible to call the function of ASP.NET to Javascript button just like this example function.

    Code:
    Function SaveDocument As Boolean 
    Response.Write("You call me")
    End Function
    How to call this SaveDocument function in JavaScript?

    Regards,
    Last edited by gimomars; 10-09-2012 at 03:08 AM.

  • #2
    Supreme Master coder! Old Pedant's Avatar
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    You can't.

    JavaScript is running in the user's browser, maybe in a plane flying across Germany.

    ASP.NET is running on the server, maybe in a computer room in Sydney, Australia.

    How can you expect the browser to magically be able to reach across the ocean and get ASP.NET to do something?

    The *ONLY* way to cause ASP.NET code (or ANY server-side code) to do anything is to make an HTTP request. Especially in the case of ASP.NET code, that pretty much means that you must post the <form> *back* to the server.

    Now, you *could* use JavaScipt to invoke the "click" of some ASP.NET-generated button, but to do that you would have to first look at what ASP.NET actually is generating for that button.
    An optimist sees the glass as half full.
    A pessimist sees the glass as half empty.
    A realist drinks it no matter how much there is.


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