删除图片框周围的白色框？

Question

我正试图将一个groupBox2容器中的pictureBox2移动到另一个groupBox1。 问题是，在该容器中，有另一个pictureBox1，当我将pictureBox2移动到pictureBox1上时，pictureBox2会在其周围获得一个白色框。

总而言之，我想将pictureBox2融合到pictureBox1。

这里是我的代码结合了鼠标移动，向上和向下的功能：

private void pictureBox2_MouseDown(object sender, MouseEventArgs e) 
    { 
     downPoint = e.Location; 
     pictureBox2.Parent = this; 
     pictureBox2.BringToFront(); 

    } 

    private void pictureBox2_MouseMove(object sender, MouseEventArgs e) 
    { 
     if (e.Button == MouseButtons.Left) 
     { 

      pictureBox2.Left += e.X - downPoint.X; 
      pictureBox2.Top += e.Y - downPoint.Y; 
     } 
    } 

    private void pictureBox2_MouseUp(object sender, MouseEventArgs e) 
    { 
     Control c = GetChildAtPoint(new Point(pictureBox2.Left - 1, pictureBox2.Top)); 

     if (c == null) c = this; 
     Point newLoc = c.PointToClient(pictureBox2.Parent.PointToScreen(pictureBox2.Location)); 
     pictureBox2.Parent = c; 
     pictureBox2.BackColor = Color.Transparent; 
     pictureBox2.Location = newLoc; 

     this.Refresh(); 
     pictureBox2.BringToFront(); 
    } 

我可以在任何地方移动pictureBox2并为其分配一个父，但我不能把它分配pictureBox1作为其父母，因为它只检测到groupBox2作为其父母。

任何帮助将不胜感激。 谢谢。 Vincent

Answer 1

尝试将PictureBox1.BorderStyle属性设置为None。