Can Array Data Refers To Drop Down Menu?!?

kanin247 · Apr 25, 2001

When using a drop down menu, how do you make the users selected choice refer to specific data in an array and use this data in an equation?

i.e.
Select Type (drop down menu)
- acsr 1351
- al 477
- cu '1/0'

Array [X,Y,Z]
[0.0803,0.369,0.0838] //data for acsr 1351
[0.0829,0.378,0.0855] //data for al 477
[0.1128,0.389,0.0890] //data for cu '1/0'

Equation
XF=Y*100/33

So, when the user selects a type, the values for that type are used in the equation.

Thanks for you help.
~kanin

RobSchultz · Apr 25, 2001

Here is a little working example...

Code:

<html>
<script language=&quot;javascript&quot;>

var aCoordinates = new Array()
aCoordinates[0] = new ParseCoordinates(0.0803,0.369,0.0838) //data for acsr 1351
aCoordinates[1] = new ParseCoordinates(0.0829,0.378,0.0855) //data for al 477
aCoordinates[2] = new ParseCoordinates(0.1128,0.389,0.0890) //data for cu '1/0'

function ParseCoordinates(x,y,z){
 this.x = x;
 this.y = y;
 this.z = z;
}

function GetResult(numSelection){
	var x = aCoordinates[numSelection].x;
	var y = aCoordinates[numSelection].y;
	var z = aCoordinates[numSelection].z;
	
	var XF=y*100/33;
	document.forms.frmCoordinates.txtResult.value = XF;
}
</script>
<body>
<form id=frmCoordinates name=frmCoordinates>
	<select id=selCoordinates>
	 <option value=0>acsr 1351
	 <option value=1>al 477
	 <option value=2>cu '1/0'
	</select>
	  
	<input type=button value=&quot;Get Result&quot; onClick=&quot;GetResult(frmCoordinates.selCoordinates.options[selCoordinates.selectedIndex].value);&quot;>
	<p>
		Result: <input type=text readonly value=&quot;&quot; id=txtResult>
	</p>
</form>
</body>
</html>

For the ultimate in ease of use you could extend the array to add the option text and create the select area on the fly.

Hope it helps, Rob
robschultz@yahoo.com
-Focus on the solution to the problem, not the obstacles in the way.-

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Can Array Data Refers To Drop Down Menu?!?

kanin247

Programmer

RobSchultz

Programmer

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