在VB.NET中编写cookie，如何在Javascript中提取？

Question

I'v scoured the net for hours, but haven't found anything that can help. Probably doesn't help that I'm a total noob with javascript.

In my VB.NET code behind, I've created a multiple name/value pair cookie like this:

        Dim UserCookie As HttpCookie = New HttpCookie("UserInfo")
        UserCookie.Values.Add("UserNumber", Me.UserNumber.Text)
        UserCookie.Values.Add("Password", Me.Password.Text)
        UserCookie.Values.Add("UserName", Me.UserName.ToString)
        Response.Cookies.Add(UserCookie)

Now, what I need to do (somehow) is read that 'UserInfo' cookie in javascript and be able to extract those values at will. Most of what I'm finding out there doesn't quite do what I need to do.

I'm trying to do something like this:

var MyValue = ReadCookie("UserInfo", "UserName")

...And MyValue would equal whatever the user had typed into the textbox. I can't find anything like this and my javascript... well... I'm a noob.

Anybody know of any good resources?

Thanks,

Jason

Answer 1

I would highly recommend using jQuery Cookie plugin here . jQuery is a library that makes using JavaScript easier. jQuery is here

To add a value to a cookie using jQuery, you would use:

$.cookie("myCookieItem", "true");

To read the value, use:

$.cookie("myCookieItem")

Answer 2

Taken from Quirks Mode's cookie page :

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}