c# - Properties.Settings - 多种形式

Question

我有两种形式：

• MainForm
• SettingsForm

正如您可以想象的那样，MainForm使用诸如Properties.Settings.Default.Path并且SettingsForm应该能够在运行时配置这样的值。

但是以某种方式SettingsForm: Properties.Settings.Default.Save();在应用程序重新启动后立即生效，尽管我正在重新加载这些设置MainForm: Properties.Settings.Default.Reload();

到目前为止我有这个：

在MainForm.cs：

    // Handles "config button click" => display settings form
    private void configStatusLabel_Click(object sender, EventArgs e)
    {
        SettingsForm form = new SettingsForm();
        form.FormClosed += new FormClosedEventHandler(form_FormClosed);
        form.Show();
    }

    // Callback triggered on Settings form closing
    void form_FormClosed(object sender, FormClosedEventArgs e)
    {
        Properties.Settings.Default.Reload();
    }

    // There are another methods called after form_FormClosed is triggered, for example
    // StremWriter = new StreamWriter(  Properties.Settings.Default.Path)

并且SettingsForm.cs：

    // Triggered on "Save button click" in Settings form, after changing values
    // Example: Properties.Settings.Default.Path = "C:\\file.txt" 
    private void saveButton_Click(object sender, EventArgs e)
    {
        Properties.Settings.Default.Save();
        Close();
    }

我错过了什么？如何实现“按需更改”？

---

更多关于程序流程

在主窗体中，有几个按钮将触发功能，例如ReloadLog()使用Properties.Settings.Default.Path。所以最后我要按这个顺序执行函数：

ReloadLog(); // Triggered by the user (several times)
             // This reloads contents of log, say C:\\main.log

configStatusLabel_Click(); // User hit "configure button", there are two active forms
                           // SettingsForm is now displayed too

// At this point ReloadLog() may be called in MainForm many times
// Meanwhile in SettingsForm:
Properties.Settings.Default.Path = PathTextBox.Text;
private void saveButton_Click(object sender, EventArgs e) // User hit save button
{
    Properties.Settings.Default.Save();
    Close(); // This will trigger form_FormClosed in main form
}

// Now you would expect that following line will open D:\\another.log
ReloadLog();
// But it still uses original config, however when I turn app off and on again, it works

Answer 1

private void configStatusLabel_Click(object sender, EventArgs e)
{
    SettingsForm form = new SettingsForm();
    form.FormClosed += new FormClosedEventHandler(form_FormClosed);
    form.FormClosed += (s, e) => { MethodThatAppliesTheSettings(); };
    form.Show();
}