Parse and retrieve properties from ViewState?
//store value in viewstate
ViewState["someValue"] = "Foo";

//retrieve value from viewstate
string someValue = ViewState["someValue"].ToString();

private string GetValue
    {
        get
        {
            string result = string.empty;

            if (ViewState["someID"] != null)
            {
                result = (string)ViewState["someID"];
            }

            return result;
        }
        set
        {
            ViewState["someID"] = value;
        }
    }