在表单A之前启动表单B，为什么表单A看不到用户认证信息?

简单的简介:我有一个程序，需要认证从用户获得访问或创建文件与用户名和密码。我有表格A和表格B;表单A是我的程序的主窗口，其中有一个按钮指向表单B，这是登录表单。就目前而言，我必须启动表单A，然后单击按钮转到表单B，因为必须登录访问文件。我的程序正在识别是否有人已经登录，它启用按钮，让我创建一个新文件或访问已经创建的一个(他们是默认禁用的，只有在身份验证首次成功时才启用)。

我如何在打开表格A之前检查身份验证?

如果我说得不够清楚，请告诉我……

现在，我已经尝试在窗体a之前初始化窗体B:

public MainWindow()
{
    AuthenticationWindow login = new AuthenticationWindow();
    login.ShowDialog();
    InitializeComponent();
}

问题是，当我这样做时，我的程序在身份验证到位后没有启用我的按钮。

我试图在初始化我的表单之前检查身份验证:

public MainWindow()
{
    AuthenticationWindow login = new AuthenticationWindow();
    login.ShowDialog();
    if (storedAuth != null)
    {
        // Making Deleting and Adding possible
        // when file was opened.
        tsmiOpen.Enabled = true;
        tsmiNew.Enabled = true;
    }
    InitializeComponent();
}

但是我仍然不能打开或创建文件。似乎程序没有检查已验证的用户。

这是我的代码，使我的按钮认证后:

private void tsmiAuthenticate_Click(object sender, EventArgs e)
{
    AuthenticationWindow authWindow = new AuthenticationWindow();
    authWindow.ShowDialog();
    storedAuth = authWindow.Result;
    if (storedAuth != null)
    {
        tsmiOpen.Enabled = true;
        tsmiNew.Enabled = true;
    }
}

我的收缩代码:

namespace Password_Manager
{
    public partial class MainWindow : Form
    {
        private AuthenticateUser storedAuth;
        private HashPhrase hash = new HashPhrase();
        private bool newSelected, openSelected;
        public MainWindow()
        {
            AuthenticationWindow login = new AuthenticationWindow();
            login.ShowDialog();
            if (storedAuth != null)
            {
                // Making Deleting and Adding possible
                // when file was opened.
                tsmiOpen.Enabled = true;
                tsmiNew.Enabled = true;
            }
            InitializeComponent();
        }
        private void tsmiAuthenticate_Click(object sender, EventArgs e)
        {
            AuthenticationWindow authWindow = new AuthenticationWindow();
            // Displaying Authenticate Window.
            // Not allowing switching between forms.
            authWindow.ShowDialog();
            storedAuth = authWindow.Result;

            if (storedAuth != null)
            {
                // Making Deleting and Adding possible
                // when file was opened.
                tsmiOpen.Enabled = true;
                tsmiNew.Enabled = true;
            }
        }
        private void tsmiAddEntry_Click(object sender, EventArgs e)
        {
            // Checking if the file is new or opened.
            // This matter because we need to
            // have appropriate path to the file.
            if (openSelected)
            {
                AddEntryWindow addWindow = new AddEntryWindow
                    (this, storedAuth.UserName, storedAuth.Password, 
                    ofdOpenFile.FileName);
                // Displaying Add Entry Window.
                // Not allowing switching between forms so I am using ShowDialog().
                addWindow.ShowDialog();
            }
            if (newSelected)
            {
                AddEntryWindow addWindow = new AddEntryWindow
                    (this, storedAuth.UserName, storedAuth.Password, 
                    sfdNewFile.FileName);
                // Displaying Add Entry Window.
                // Not allowing switching between 
                // forms so I am using ShowDialog().
                addWindow.ShowDialog();
            }
        }
        private void tsmiDeleteEntry_Click(object sender, EventArgs e)
        {
            // Checking if the file is new or opened.
            // This matter because we need to
            // have appropriate path to the file.
            if (openSelected)
            {
                // When open file.
                DeleteEntryWindow deleteEntyWindow = new DeleteEntryWindow
                    (this, storedAuth.UserName,
                    storedAuth.Password, ofdOpenFile.FileName);
                deleteEntyWindow.ShowDialog();
            }
            else if (newSelected)
            {
                // When new file.
                DeleteEntryWindow deleteEntyWindow = new DeleteEntryWindow
                    (this, storedAuth.UserName,
                    storedAuth.Password, sfdNewFile.FileName);
                deleteEntyWindow.ShowDialog();
            }
        }
    }
}

public MainWindow()
        {
            InitializeComponent();
            AuthenticationWindow login = new AuthenticationWindow();
            login.ShowDialog();
            storedAuth = login.Result;

            if (storedAuth != null)
            {
                // Making Deleting and Adding possible
                // when file was opened.
                tsmiOpen.Enabled = true;
                tsmiNew.Enabled = true;
            }

        }