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-   JavaScript / DHTML / AJAX (http://www.daniweb.com/forums/forum117.html)
-   -   Pass parameters between Javascript and ASP (http://www.daniweb.com/forums/thread40313.html)

chan karan Feb 28th, 2006 9:13 pm
Pass parameters between Javascript and ASP
 
Can anyone help me to solve the problem, i want to pass the parameters between the javascript and asp.

[html]<SCRIPT type="text/javascript" LANGUAGE="JavaScript">
<!--
function startWord(par_1)
{
var oShell = new ActiveXObject("Shell.Application");
var commandtoRun="C:\\Karan\\Automation.exe";
oShell.ShellExecute(commandtoRun, commandParms, "", "open", "1");
}
//-->
</script>
</head>
<body>
<form>
<input type="text" name="par_1" value="123">
<input type="button" value="Click me!" onclick="startWord(par_1)">
</form>
</body>
</html>[/html]
it's only open the vb.exe file, but how can i pass the parameters to this exe??

thank you for helping me~~~

tgreer Mar 1st, 2006 3:13 pm
Re: Pass parameters between Javascript and ASP
 
Please use the forum's CODE tags when posting.

JavaScript runs on the client. ASP runs on the server. You cannot "pass" variables between them, per se.

The only time ASP runs is when a REQUEST is sent to the web server, either a GET or a POST.

The way you send values to an ASP form is by adding a QueryString to your GET Requests, or by populating form values for your POST Requests (or, "form submits").

chan karan Mar 1st, 2006 10:04 pm
Re: Pass parameters between Javascript and ASP
 
Sorry for asking the wrong question.
Base on the above code, i can call the vb.exe program. Can i pass the parameters from javascript to vb.exe program???

tgreer Mar 1st, 2006 10:38 pm
Re: Pass parameters between Javascript and ASP
 
I see. Well, you're passing in a value to the function, correct? Is that value you want to "pass" to the activeX object? I see you're executing the method with "commandParms", but you're never setting "commandParms" equal to anything. Should it contain the value you pass to the JavaScript function?

Okay, I'm going to assume that you want commandParms = "123". 

<SCRIPT type="text/javascript" LANGUAGE="JavaScript">

<!--

function startWord(x)

  {

commandParms = document.getElementById(x).value;

   var oShell = new ActiveXObject("Shell.Application");

    var commandtoRun="C:\\Karan\\Automation.exe";

oShell.ShellExecute(commandtoRun, commandParms, "", "open", "1");

  }

  //-->

</script>

</head>

<body>

<form>

<input type="text" name="par_1" value="123">

<input type="button" value="Click me!" onclick="startWord('par_1')">

</form>

</body>

</html>

chan karan Mar 2nd, 2006 1:15 am
Re: Pass parameters between Javascript and ASP
 
The error came out after added the "commandParms = document.getElementById(x).value;"
is the server not read this sentence??

tgreer Mar 2nd, 2006 10:01 am
Re: Pass parameters between Javascript and ASP
 
No, the server wouldn't process that... it's JavaScript, which would run on the client.

Change name="par_1" in the input text element to id="par_1" .

chan karan Mar 2nd, 2006 8:03 pm
Re: Pass parameters between Javascript and ASP
 
Thank you for your help.

I use the alert sentence to check the value on getelelment, but the value is "NULL".

do it mean the value can't pass to the function???

tgreer Mar 2nd, 2006 8:17 pm
Re: Pass parameters between Javascript and ASP
 
I assure you this works. I have no idea what "getelement" means, sorry.

Here's the most simplified test version I can make for you:

<html>

<head>

<script type="text/javascript">

function startWord(x)

{

  var commandParms = document.getElementById(x).value;

  alert(commandParms);

}

</script>

</head>

<body>

<form>

<input id="txt" type="text" value="123" />

<input id="btn" type="button" value="Click" onclick="startWord('txt')" />

</form>

</body>

</html>

chan karan Mar 2nd, 2006 8:31 pm
Re: Pass parameters between Javascript and ASP
 
Thx a lot , i success la, thank you very much~~

if i want to pass two parameters, am i need to add one more text for another parameter??

tgreer Mar 2nd, 2006 10:02 pm
Re: Pass parameters between Javascript and ASP
 
That's completely up to you. You have enough now to learn the mechanism and finish it on your own.


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