使用C#代码和未经编译的XAML创建WPF应用程序

使用C#代码和未经编译的XAML创建WPF应用程序

1. 新建一个WPF项目，将App.Xaml和MainWindow.xaml删除

2. 未经编译的XAML文件内容如下

   <DockPanel xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
    <Button Name="Button1" Margin="60">Please Click Me!</Button>
   </DockPanel>

3. C#代码如下 ```java using System.IO; using System.Windows; using System.Windows.Controls; using System.Windows.Markup;

namespace 项目7 { ///

    public MainWindow(string xamlFile)
    {
        //设置窗体
        this.Width = 800;
        Height = 450;
        Left = Top = 150;
        Title = "Dynamically Loaded XAML";
        //从外部文件获取XAML的内容
        DependencyObject rootElement;
        using (FileStream fs = new FileStream(xamlFile, FileMode.Open))
        {
            rootElement = XamlReader.Load(fs) as DependencyObject;
        }
        Content = rootElement;
        btn = LogicalTreeHelper.FindLogicalNode(rootElement, "Button1") as Button;
        btn.Click += btn_Click;
    }
    void btn_Click(object sender, RoutedEventArgs e)
    {
        btn.Content = "Thank you!";
    }
}

}

4. 再新建个Program.cs类，作为启动程序：
```java
using System;
using System.Windows;
namespace 项目7 {
    class Program:Application {
        [STAThread]
        static void Main()
        {
            Program app=new Program();
            app.MainWindow=new MainWindow("Window1.xaml");
            app.MainWindow.ShowDialog();
        }
    }
}

• 项目包含的类
  

• 运行后的效果

• 点击后的效果