我正在尝试创建一个表单,其中包含以编程方式创建的面板和能够拖放和调整大小的控件,就像 Microsoft Visual Studio IDE 一样。
我创造了这样的东西。应该有这么多的线(蓝色的)和这么多的盒子(黄色的),我可以在蓝线内移动黄色的盒子。一切都可以在设计时使用定义的控件。
和这里的源代码
public partial class Form1 : Form
{
bool allowResize = false;
public Form1()
{
InitializeComponent();
panel1.AllowDrop = true;
panel2.AllowDrop = true;
panel3.AllowDrop = true;
panel4.AllowDrop = true;
panel1.DragEnter += panel_DragEnter;
panel2.DragEnter += panel_DragEnter;
panel3.DragEnter += panel_DragEnter;
panel4.DragEnter += panel_DragEnter;
panel1.DragDrop += panel_DragDrop;
panel2.DragDrop += panel_DragDrop;
panel3.DragDrop += panel_DragDrop;
panel4.DragDrop += panel_DragDrop;
panelMove.MouseDown += panelMove_MouseDown;
}
void panelMove_MouseDown(object sender, MouseEventArgs e)
{
panelMove.DoDragDrop(panelMove, DragDropEffects.Move);
}
void panel_DragEnter(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.Move;
}
void panel_DragDrop(object sender, DragEventArgs e)
{
((Panel)e.Data.GetData(typeof(Panel))).Parent = (Panel)sender;
}
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
allowResize = true;
}
private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
{
allowResize = false;
}
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
{
if (allowResize)
{
this.panelMove.Height = pictureBox1.Top + e.Y;
this.panelMove.Width = pictureBox1.Left + e.X;
}
}
}
但我不知道如何在运行时创建这些控件(蓝色和黄色框)。