I am using an external javascript file for my asp.net project. Now i want to get the session value in that javascript. How can i get the session value in that javascript file?
Thanks in advance..
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Could you post a sample code?OnesimusUnbound– OnesimusUnbound2011-12-06 06:18:31 +00:00Commented Dec 6, 2011 at 6:18
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Session data is stored on the server. You can't access it with JavaScript directly.Blender– Blender2011-12-06 06:22:03 +00:00Commented Dec 6, 2011 at 6:22
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7 Answers
<script>
var someSession = '<%= Session["SessionName"].ToString() %>';
alert(someSession)
</script>
This code you can write in Aspx. If you want this in some js.file, you have two ways:
- Make aspx file which writes complete JS code, and set source of this file as Script src
- Make handler, to process JS file as aspx.
Comments
You can access your session variable like '<%= Session["VariableName"]%>'
the text in single quotes will give session value. 1)
<script>
var session ='<%= Session["VariableName"]%>'
</script>
2) you can take a hidden field and assign value at server;
hiddenfield.value= session["xyz"].tostring();
//and in script you access the hiddenfield like
alert(document.getElementbyId("hiddenfield").value);
1 Comment
Greg
You have an error, it should be
<%= Session["Variable"] %>, the square bracket not parenthesis.For me this code worked in JavaScript like a charm!
<%= session.getAttribute("variableName")%>
hope it helps...
1 Comment
Gilbert_Prashant
This javaScript function happens to be in my JSP.
I tried following with ASP.NET MVC 5, its works for me
var sessionData = "@Session["SessionName"]";
Comments
protected void Page_Load(object sender, EventArgs e)
{
Session["MyTest"] = "abcd";
String csname = "OnSubmitScript";
Type cstype = this.GetType();
// Get a ClientScriptManager reference from the Page class.
ClientScriptManager cs = Page.ClientScript;
// Check to see if the OnSubmit statement is already registered.
if (!cs.IsOnSubmitStatementRegistered(cstype, csname))
{
string cstext = " document.getElementById(\"TextBox1\").value = getMyvalSession() ; ";
cs.RegisterOnSubmitStatement(cstype, csname, cstext);
}
if (TextBox1.Text.Equals("")) { }
else {
Session["MyTest"] = TextBox1.Text;
}
}
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<script language=javascript type="text/javascript">
function getMyvalSession() {
var txt = "efgh";
var ff = '<%=Session["MyTest"] %>' + txt;
return ff ;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server" AutoPostBack=true ></asp:TextBox>
<input type="submit" value="Submit" />
</div>
</form>
</body>
</html>
Comments
If you are using VB as code behind, you have to use bracket "()" instead of square bracket "[]".
Example for VB:
<script type="text/javascript">
var accesslevel = '<%= Session("accesslevel").ToString().ToLower() %>';
</script>
Comments
var sessionVal = '@Session["EnergyUnit"]';
alert(sessionVal);
