如何在WPF中创建模板窗口？

public class TemplateWindow : Window
{
    // 在这里添加您的代码
}

public class TemplateWindow : Window
{
    public string TitleText
    {
        get { return (string)GetValue(TitleTextProperty); }
        set { SetValue(TitleTextProperty, value); }
    }

    public static readonly DependencyProperty TitleTextProperty =
        DependencyProperty.Register("TitleText", typeof(string), typeof(TemplateWindow), new PropertyMetadata(string.Empty));

    public TemplateWindow()
    {
        InitializeComponent();
    }

    // 在这里添加您的其他代码
}

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="{Binding TitleText, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Window}}"
        Height="300" Width="300">
    <Grid>
        <!-- 在这里添加您的模板内容 -->
    </Grid>
</Window>

public partial class App : Application
{
    protected override void OnStartup(StartupEventArgs e)
    {
        base.OnStartup(e);

        var templateWindow = new TemplateWindow { TitleText = "My Template Window" };
        templateWindow.Show();
    }
}