问公共变量wp7芒果

EN

public static class MainPage : PhoneApplicationPage
{
    string result;//var i wanna use at the all application pages
    string status;//var i wanna use at the all application pages
    string userId;//var i wanna use at the all application pages
    string msg;//var i wanna use at the all application pages

    WebClient client;

    // Constructor
    public MainPage()
    {
        InitializeComponent();

        client = new WebClient();
        client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(client_DownloadStringCompleted);
    }
}

///second page
public partial class info : PhoneApplicationPage
{
    public info()
    {
        InitializeComponent();
        textBlock1.Text = result.value();
    }
}