如何将子控件的所有事件发送到其父控件（自定义控件）？

Question

我有一个自定义控件包含三个子控件（面板与PictureBox控件和标签），我想发送一个子控件的所有事件到其父控件（自定义控件）。

我知道有很多关于这个问题的答案，但是我不能用简单的解决方案来解决它。

这里是我的榜样

public partial class Form1 : Form 
{ 
    public Form1() 
    { 
     InitializeComponent(); 
     UserControl1 uc1 = new UserControl1(); 
     this.Controls.Add(uc1); 
    } 
} 

public partial class UserControl1 : UserControl 
{ 
    public PictureBox ChildPictureBox { get; set; } 

    public UserControl1() 
    { 
     PictureBox pictureBox1 = new PictureBox(); 
     pictureBox1.Size = new Size(150, 150); 
     pictureBox1.BackColor = Color.Red; 
     pictureBox1.Click += PictureBox1_Click; 
     this.Controls.Add(pictureBox1); 
     ChildPictureBox = pictureBox1; 

     this.Click += UserControl1_Click; 
    } 

    private void UserControl1_Click(object sender, EventArgs e) 
    { 
     MessageBox.Show("User control click"); 
    } 

    private void PictureBox1_Click(object sender, EventArgs e) 
    { 
     MessageBox.Show("pic clicked"); 
    }  
} 

Answer 1

下面的代码的例子，这里有UserControl1和PictureBox和Panel他们的点击事件被钩到MainForm I-E MyForm作为命名。您可以根据您的要求修改它。

UserControl1.cs

public partial class UserControl1 : UserControl 
{ 
    public delegate void PictureBoxClickHandler(object sender, EventArgs e); 
    public event PictureBoxClickHandler PictureBoxClick; 

    public delegate void PanelClickHandler(object sender, EventArgs e); 
    public event PanelClickHandler PanelClick; 

    public delegate void PictureBoxDoubleClickHandler(object sender, EventArgs e); 
    public event PictureBoxDoubleClickHandler PictureBoxDoubleClick; 

    public delegate void PictureBoxMouseMoveHandler(object sender, MouseEventArgs e); 
    public event PictureBoxMouseMoveHandler PictureBoxMouseMove; 

    public UserControl1() 
    { 
     InitializeComponent(); 
    } 

    private void pictureBox1_Click(object sender, EventArgs e) 
    { 
     if (PictureBoxClick != null) 
     { 
      PictureBoxClick(sender, e); 
     } 
    } 

    private void panel1_Click(object sender, EventArgs e) 
    { 
     if (PanelClick != null) 
     { 
      PanelClick(sender, e); 
     } 
    } 

    private void pictureBox1_DoubleClick(object sender, EventArgs e) 
    { 
     if (PictureBoxDoubleClick != null) 
     { 
      PictureBoxDoubleClick(sender, e); 
     } 
    } 

    private void pictureBox1_MouseMove(object sender, MouseEventArgs e) 
    { 
     if (PictureBoxMouseMove != null) 
     { 
      PictureBoxMouseMove(sender, e); 
     } 
    } 
} 

MyForm.cs

public class MyForm : Form 
{ 
    public MyForm() 
    { 
     InitializeComponent(); 
     var userControl1 = new UserControl1(); 
     Controls.Add(userControl1); 
     userControl1.PictureBoxClick += userControl1_PictureBoxClick; 
     userControl1.PanelClick += userControl1_PanelClick; 

     userControl1.PictureBoxDoubleClick+=userControl1_PictureBoxDoubleClick; 
     userControl1.PictureBoxMouseMove+=userControl1_PictureBoxMouseMove; 
    } 

    private void userControl1_PanelClick(object sender, EventArgs e) 
    { 
     //Click: Panel on userControl1 
    } 

    private void userControl1_PictureBoxClick(object sender, EventArgs e) 
    { 
     //Click: PictureBox on userControl1 
    } 

    private void userControl1_PictureBoxMouseMove(object sender, MouseEventArgs e) 
    { 
     throw new NotImplementedException(); 
    } 

    private void userControl1_PictureBoxDoubleClick(object sender, EventArgs e) 
    { 
     throw new NotImplementedException(); 
    } 
} 

编辑：

public partial class UserControl1 : UserControl 
{ 

    public PictureBox ChildPictureBox { get; set; }   

    public UserControl1() 
    { 
     InitializeComponent(); 
     ChildPictureBox = pictureBox1; 
    } 
    //---- 
} 

现在形式

public class MyForm : Form 
{ 
    public MyForm() 
    { 
     InitializeComponent(); 
     PictureBox pictureBox = userControl1.ChildPictureBox; 
     //now work with pictureBox here 
     pictureBox.Click += pictureBox_Click; 
    } 

    private void pictureBox_Click(object sender, EventArgs e) 
    { 
     throw new NotImplementedException(); 
    } 
} 

Answer 2

我认为你可以做到这一点，但你应该知道，不常见的事件不能与其他控件相关联。

public partial class UserControl1 : UserControl 
{ 
    public UserControl1() 
    { 
     InitializeComponent(); 

     foreach (Control control in this.Controls) 
     { 
      control.Click += new EventHandler(control_Click); 
     } 
    } 

    private void control_Click(object sender, EventArgs e) 
    { 
     this.UserControl1_Click(sender, e); 
    } 

    private void UserControl1_Click(object sender, EventArgs e) 
    { 

    } 
}