private void ParentForm_Load(object sender, EventArgs e)
{
LoadMenuNodes();
}
private void LoadMenuNodes() //实现情况应该是从数据库及用户权限来进行动态创建菜单项
{
this.treeView1.Nodes.Clear();
var root = this.treeView1.Nodes.Add("Root");
for (int i = 1; i <= 10; i++)
{
var section = root.Nodes.Add("Section-" + i);
int maxNodes = new Random(i).Next(1, 10);
for (int n = 1; n <= maxNodes; n++)
{
section.Nodes.Add(string.Format("Level-{0}-{1}", i, n));
}
}
}
private void treeView1_NodeMouseDoubleClick(object sender, TreeNodeMouseClickEventArgs e)
{
if (e.Node.Nodes.Count <= 0)//当非父节点（即：实际的功能节点）
{
ShowChildForm<ChildForm>();
}
}
附上完整的实现代码：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WinFormTest
{
public partial class ParentForm : Form
{
private bool startMove = false;
public ParentForm()
{
InitializeComponent();
panel1.MouseDown += panel1_MouseDown;
panel1.MouseUp += panel1_MouseUp;
panel1.MouseMove += panel1_MouseMove;
panel1.Top = menuStrip1.Height;
panel1.Left = treeView1.Left + treeView1.Width;
panel1.Height = panel1.Parent.Height;
}
void panel1_MouseMove(object sender, MouseEventArgs e)
{
if (startMove)
{
panel1.Left += e.X;
}
}
void panel1_MouseUp(object sender, MouseEventArgs e)
{
if (startMove)
{
panel1.Left += e.X;
startMove = false;
this.treeView1.Width = panel1.Left;
}
}
void panel1_MouseDown(object sender, MouseEventArgs e)
{
startMove = true;
}
private void ParentForm_Load(object sender, EventArgs e)
{
LoadMenuNodes();
}
private void treeView1_NodeMouseDoubleClick(object sender, TreeNodeMouseClickEventArgs e)
{
if (e.Node.Nodes.Count <= 0)//当非父节点（即：实际的功能节点）
{
ShowChildForm<ChildForm>();
}
}
private void ParentForm_Resize(object sender, EventArgs e)
{
panel1.Height = panel1.Parent.Height;
}
private void LoadMenuNodes() //实现情况应该是从数据库及用户权限来进行动态创建菜单项
{
this.treeView1.Nodes.Clear();
var root = this.treeView1.Nodes.Add("Root");
for (int i = 1; i <= 10; i++)
{
var section = root.Nodes.Add("Section-" + i);
int maxNodes = new Random(i).Next(1, 10);
for (int n = 1; n <= maxNodes; n++)
{
section.Nodes.Add(string.Format("Level-{0}-{1}", i, n));
}
}
}
private void ShowChildForm<TForm>() where TForm : Form, new()
{
Form childForm = new TForm();
childForm.MdiParent = this;
childForm.Name = "ChildForm - " + DateTime.Now.Millisecond.ToString();
childForm.Text = childForm.Name;
childForm.Show();
}
}
}
最终效果如下图示：
