如何使用ASP.Net在Java脚本文件中获取另一个Form会话值？

Question

am having Sample.aspx and sample.js both are in different directory.

how can i get the Sample.aspx page session values in sample.js file ?

i cant get the value for the following types

    function session() {
        alert('<%=Session.getAttribute("hdn_CheckedData")%>');
        alert(document.getElementbyId("hdn_CheckedData").value);
        alert('<%=Session["CheckedData"]%>');
        alert('<%=Session("CheckedData")%>');
        alert('<%=Session["CheckedData"].ToString()%>');
        alert('<%=Session("CheckedData").ToString()%>');
    };

CheckedData - is the session

hdn_CheckedData - is the hiddenfield

i tried both of it.

is it possible then help me pls.....

Hiddenfiled, session, viewstate or anything............

Answer 1

One simple solution is to declare the session variables just before the load of your javascript file and inside the aspx page. Eg on sample.aspx you have

<script>
var sessionCheckData = "<%=session["CheckedData"].ToString()%>";
</script>
<script type="text/javascript" src="sample.js"></script>

and on sample.js you have

  function session() {
        alert(sessionCheckData);
    };

Similar answer: How to get asp.net client id at external javascript file

Answer 2

You can save the session data to a hidden field on your page. After that you have direct access to that field in you js file.

Or you can declare a session variable as Aristos has proposed. That would more straightforward actually.

Answer 3

I would write a generic handler and use JSONP to pass any data to external Javascript.

Please take a look at here , here and here .

Since it is not cross domain, JSON should also work.

Answer 4

You have to assign session values to hiddenfield

after that you can use that values