Damo
Posts: 22
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| Posted: 09/29/2008, 9:03 AM |
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Hi
I am having a major headache trying to pass an asp variable into html or javascript.
For testing purposes I can define a variable and use a javascript document.write to display the value, this only works when I define the variable in javascript.
What I am trying to do is for the javascript or html to read the value of my asp variable.
Can anyone help me please as I dont understad why it does not work and all I get on the page is 'Undefined'.
Here is my asp code: (I have inserted this in before show and on a button click - I get the same Undefined response.
Function Page_BeforeShow(Sender) 'Page_BeforeShow @1-A1547E8B
'Custom Code @16-73254650
' -------------------------
' Write your own code here.
' -------------------------
Dim TLImage
TLImage = "RedAmberGreen"
'End Custom Code
End Function 'Close Page_BeforeShow @1-54C34B28
Here is my javascript/html -
<script language="javascript">
var TLImage;
var colour1 = "purple";
var colour2 = "pink";
document.write('<p> colour1: ' + colour1 + '<br>colour2: ' + colour2 + '</p>');
document.write('<p> Traffic Light: ' + TLImage + '</p>');
document.write(TLImage);
</script>
It displays the pink and purple and for TLImage all I get is Undefined.
(The code is on the same page asp page)
Thanks in advance for your help.
Damo
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vinay
Posts: 2
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| Posted: 09/29/2008, 10:23 PM |
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Hi
<script language="javascript">
var TLImage;
var colour1 = "purple";
var colour2 = "pink";
document.write('<p> colour1: ' + colour1 + '<br>colour2: ' + colour2 + '</p>');
document.write('<p> Traffic Light: ' + <%=TLImage %>+ '</p>');
document.write(<%=TLImage%>);
</script>
should work.
Alternatively you could try using a hidden field and transfering the value as the default value, this can be read with javascript.
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Damo
Posts: 22
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| Posted: 10/01/2008, 8:33 AM |
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Hi vinay,
Unfortunately I still cannot get this working. Would you mind providing me with some code or a working example so I can understand how to achieve this please?
I assume if it reads the default value I can write an 'if then else' statement so I can change the value depending on the condition?
Thanks
Damo
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vinay
Posts: 2
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| Posted: 10/14/2008, 10:57 PM |
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Hi Damo,
Sorry for the late response,
below is a sample .asp for variable passing between asp and javascript
Hope this is still of use.
Regards
<html>
<body>
<%
'any asp variable definition could come here
session("valforTLImage") ="some text"
%>
<script type="text/javascript">
var TLImage;
TLImage = "<%=session("valforTLImage")%>";
var colour1 = "purple";
var colour2 = "pink";
document.write('<p> colour1: ' + colour1 + '<br>colour2: ' + colour2 + '</p>');
document.write('<p> Traffic Light: ' + TLImage + '</p>');
</script>
</body>
</html>
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