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WPF：使用模态对话框/InputDialog查询用户

发布于 2024-10-10 03:24:17 字数 206 浏览 8 评论 0原文

在 WPF 应用程序中，我必须从用户那里获取一行信息，但我不想使用模态对话框。然而，似乎没有为此预设的对话框。有什么简单易行的方法可以做到这一点。我发现尝试用许多版本的对话框等来找出这一点有点复杂。

我已经不得不使用 OpenFileDialog 和 SaveFileDialog。 Microsoft.Win32 和 System.Windows.Form 等版本之间有什么不同？

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执着的年纪 2024-10-17 03:24:17

在 WPF 中显示模式对话框不需要执行任何特殊操作。只需将 Window 添加到您的项目（假设类名称为 MyDialog），然后执行以下操作：

var dialog = new MyDialog();
dialog.ShowDialog();

Window.ShowDialog 负责显示以模态方式窗口。

示例：

public class MyDialog : Window {
    public MyDialog() {
        this.InitializeComponent();
        this.DialogResult = null;
    }

    public string SomeData { get; set; } // bind this to a control in XAML
    public int SomeOtherData { get; set; } // same for this

    // Attach this to the click event of your "OK" button
    private void OnOKButtonClicked(object sender, RoutedEventArgs e) {
        this.DialogResult = true;
        this.Close();
    }

    // Attach this to the click event of your "Cancel" button
    private void OnCancelButtonClicked(object sender, RoutedEventArgs e) {
        this.DialogResult = false;
        this.Close();
    }
}

在您的代码中的某处：

var dialog = new MyDialog();
// If MyDialog has properties that affect its behavior, set them here
var result = dialog.ShowDialog();

if (result == false) {
    // cancelled
}
else if (result == true) {
    // do something with dialog.SomeData here
}

There's nothing special you need to do to show a modal dialog in WPF. Just add a Window to your project (let's say the class name is MyDialog), and then do:

var dialog = new MyDialog();
dialog.ShowDialog();

Window.ShowDialog takes care of showing the window in a modal manner.

Example:

public class MyDialog : Window {
    public MyDialog() {
        this.InitializeComponent();
        this.DialogResult = null;
    }

    public string SomeData { get; set; } // bind this to a control in XAML
    public int SomeOtherData { get; set; } // same for this

    // Attach this to the click event of your "OK" button
    private void OnOKButtonClicked(object sender, RoutedEventArgs e) {
        this.DialogResult = true;
        this.Close();
    }

    // Attach this to the click event of your "Cancel" button
    private void OnCancelButtonClicked(object sender, RoutedEventArgs e) {
        this.DialogResult = false;
        this.Close();
    }
}

In your code somewhere:

var dialog = new MyDialog();
// If MyDialog has properties that affect its behavior, set them here
var result = dialog.ShowDialog();

if (result == false) {
    // cancelled
}
else if (result == true) {
    // do something with dialog.SomeData here
}

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