.Net – How to Set values to Session in JavaScript?

Today, we will not posted a blog. It’s a question and answer. Below you will find how to set values to session in JavaScript?

Question –

I want to set the drop down selected value in Session. I have done in Code behind. But for some condition i have to Do in Client Side Itself. i tried the following. but i didn’t solution yet.

<%Session["Test"] = "Welcome";%>  
var session_value='<%=Session["Test"]%>';  
alert(session_value);

The above work fine. Note that i have assign Static value(Welcome). but for Dynamatic,

var strTest=document.getElementById('DropDownList1').value;  
<%Session["Test"] = "'+ strTest +'";%>

It is Working fine in Client Side. But i Server Side(Code Behind), the Session[“Test”] value is ‘+ strTest +’.
Is any other way to assign values to Session?

Answer –

Not possible to assign session values directly through JavaScript.
I found alternative ways. Call the code behind function and assign the session values.
JavaScript Function:

function InitializeRequest(path) 
{
            // call server side method
            PageMethods.SetDownloadPath(path);
}


[System.Web.Services.WebMethod]
public static string SetDownloadPath(string strpath)
{
    Page objp = new Page();
    objp.Session["strDwnPath"] = strpath; 
    return strpath;
}

Must enable page methods set to true

<asp:ScriptManager EnablePageMethods="true" ID="MainSM" runat="server" ScriptMode="Release" LoadScriptsBeforeUI="true"></asp:ScriptManager> 

Source

Related Blog – Redirect to another URL

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