WPF 事件处理

     public  class MyForm
    {
        public System.Windows.Shapes.Rectangle m_rect;



        private int m_width;
        private int m_heigth;
        private BitmapImage bitmig;
        public MyForm()
        {
            this.m_rect.MouseDown += MinePane_MouseDown;

            m_rect = new System.Windows.Shapes.Rectangle();
            Uri uri = new Uri("Resources\\BITMAP10.BMP", UriKind.Relative);

            bitmig=new BitmapImage(uri);
            m_width = (int)bitmig.Width;
            m_heigth = (int)(bitmig.Height / 16);


            System.Windows.Media.Imaging.CroppedBitmap cb = new CroppedBitmap(bitmig,
                new System.Windows.Int32Rect(0, 0, m_width, m_heigth));

            m_rect.Fill =new ImageBrush(cb);
            State = state.Normal;



        }


        public void MinePane_MouseDown(object sender,System.Windows.Input.MouseButtonEventArgs e)
        {
            System.Windows.Media.Imaging.CroppedBitmap cb = new CroppedBitmap(bitmig,
                new System.Windows.Int32Rect(0,m_heigth*15, m_width, m_heigth));

            m_rect.Fill = new ImageBrush(cb);
        }

    }
在 System.Windows.Markup.XamlParseException 中第一次偶然出现的“PresentationFramework.dll”类型的异常

其他信息: 无法创建在程序集“我的扫雷, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null”中定义的“MainForm”的实例。调用的目标发生了异常。  标记文件中“MainForm.xaml”行1位置9处的错误。

这个问题出在哪里？ --------------------编程问答-------------------- 可能你修改了xaml的内容或者使用了中文的文件名。
默认创建的应该是可以的 --------------------编程问答-------------------- public class MyForm
  {
  public System.Windows.Shapes.Rectangle m_rect;



  private int m_width;
  private int m_heigth;
  private BitmapImage bitmig;
  public MyForm()
  {
  this.m_rect.MouseDown += MinePane_MouseDown;

  m_rect = new System.Windows.Shapes.Rectangle();
  Uri uri = new Uri("Resources\\BITMAP10.BMP", UriKind.Relative);

  bitmig=new BitmapImage(uri);
  m_width = (int)bitmig.Width;
  m_heigth = (int)(bitmig.Height / 16);


  System.Windows.Media.Imaging.CroppedBitmap cb = new CroppedBitmap(bitmig,
  new System.Windows.Int32Rect(0, 0, m_width, m_heigth));

  m_rect.Fill =new ImageBrush(cb);
  State = state.Normal;



  }


  public void MinePane_MouseDown(object sender,System.Windows.Input.MouseButtonEventArgs e)
  {
  System.Windows.Media.Imaging.CroppedBitmap cb = new CroppedBitmap(bitmig,
  new System.Windows.Int32Rect(0,m_heigth*15, m_width, m_heigth));

  m_rect.Fill = new ImageBrush(cb);
  }

  }

红色部分你写错了,应该如下这样才对的。
this.m_rect.MouseDown +=new MouseButtonEventHandler(MinePane_MouseDown); --------------------编程问答-------------------- 不懂你的xaml中行1是什么内容。你连xaml一行内容都不贴出来，想让人胡乱猜什么呢？ --------------------编程问答-------------------- 不过基本上可以判读，你的代码中根本没有什么 MainForm 这个class的！ --------------------编程问答-------------------- this.m_rect.MouseDown += MinePane_MouseDown;

这在.net 4中是合法的. --------------------编程问答-------------------- 除

补充：.NET技术 ,  .NET Framework