之前的这篇文章《分享在winform下实现左右布局多窗口界面》已经实现了左右布局多窗口界面,今天本来是研究基于winform的插件编程,没想到顺便又找到了另一种实现方案,这种实现方案更简单,要写的代码也很少,具体实现如下。
可视化设计部份:
1.父窗口:ParentForm的IsMdiContainer 设置为 true,即:this.IsMdiContainer=true;
2.在父窗口中添加一个顶部菜单:menuStrip1,并新增一个菜单项:Windows,且将menuStrip1的MdiWindowListItem设置为该Windows菜单对象,即: this.menuStrip1.MdiWindowListItem = this.windowsToolStripMenuItem;
3.在父窗口中添加一个树形菜单:treeView1,并将其Dock设为左靠齐,即:this.treeView1.Dock = System.Windows.Forms.DockStyle.Left;且将margin设为0;
4.在父窗口中添加一个Panel:panel1,且将其width设为3;
以下是设计后自动生成的代码:
+ View Code?1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 |
namespace WinFormTest
{
partial class ParentForm
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null ;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源,为 true;否则为 false。</param>
protected override void Dispose( bool disposing)
{
if (disposing && (components != null ))
{
components.Dispose();
}
base .Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this .menuStrip1 = new System.Windows.Forms.MenuStrip();
this .windowsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this .treeView1 = new System.Windows.Forms.TreeView();
this .panel1 = new System.Windows.Forms.Panel();
this .menuStrip1.SuspendLayout();
this .SuspendLayout();
//
// menuStrip1
//
this .menuStrip1.Items.AddRange( new System.Windows.Forms.ToolStripItem[] {
this .windowsToolStripMenuItem});
this .menuStrip1.Location = new System.Drawing.Point(0, 0);
this .menuStrip1.MdiWindowListItem = this .windowsToolStripMenuItem;
this .menuStrip1.Name = "menuStrip1" ;
this .menuStrip1.Size = new System.Drawing.Size(684, 25);
this .menuStrip1.TabIndex = 0;
this .menuStrip1.Text = "menuStrip1" ;
//
// windowsToolStripMenuItem
//
this .windowsToolStripMenuItem.Name = "windowsToolStripMenuItem" ;
this .windowsToolStripMenuItem.Size = new System.Drawing.Size(73, 21);
this .windowsToolStripMenuItem.Text = "Windows" ;
//
// treeView1
//
this .treeView1.Dock = System.Windows.Forms.DockStyle.Left;
this .treeView1.Location = new System.Drawing.Point(0, 25);
this .treeView1.Margin = new System.Windows.Forms.Padding(0);
this .treeView1.Name = "treeView1" ;
this .treeView1.Size = new System.Drawing.Size(228, 380);
this .treeView1.TabIndex = 3;
this .treeView1.NodeMouseDoubleClick += new System.Windows.Forms.TreeNodeMouseClickEventHandler( this .treeView1_NodeMouseDoubleClick);
//
// panel1
//
this .panel1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)));
this .panel1.BackColor = System.Drawing.Color.Red;
this .panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this .panel1.Cursor = System.Windows.Forms.Cursors.VSplit;
this .panel1.Location = new System.Drawing.Point(230, 28);
this .panel1.Margin = new System.Windows.Forms.Padding(0);
this .panel1.Name = "panel1" ;
this .panel1.Size = new System.Drawing.Size(3, 100);
this .panel1.TabIndex = 5;
//
// Form1
//
this .AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this .AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this .ClientSize = new System.Drawing.Size(684, 405);
this .Controls.Add( this .panel1);
this .Controls.Add( this .treeView1);
this .Controls.Add( this .menuStrip1);
this .IsMdiContainer = true ;
this .MainMenuStrip = this .menuStrip1;
this .Name = "Form1" ;
this .Text = "Form1" ;
this .Load += new System.EventHandler( this .Form1_Load);
this .Resize += new System.EventHandler( this .Form1_Resize);
this .menuStrip1.ResumeLayout( false );
this .menuStrip1.PerformLayout();
this .ResumeLayout( false );
this .PerformLayout();
}
#endregion
private System.Windows.Forms.MenuStrip menuStrip1;
private System.Windows.Forms.ToolStripMenuItem windowsToolStripMenuItem;
private System.Windows.Forms.TreeView treeView1;
private System.Windows.Forms.Panel panel1;
}
}
|
编码部份:
其实上面的设计后,如果通过以下定义的方法打开一个子窗口,则直接实现了左右布局且包含多子窗口的界面。
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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();
}
|
当然仍然有不完美的地方,那就是左边菜单栏宽度不能动态调整,而又没有用到splitContainer,故我们只有自己来实现,其实也很简单,步骤如下:
1.在父窗口构造函数中加入初始化panel1(用作分割器)位置及订阅相关事件,代码如下:
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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;
}
|
上述代码的作用是:1.保证panel1的高度与位置与左侧树形菜单控件相匹配;2.订阅的三个Mouse事件主要是为了后面实现移动panel1。
2.实现订阅的三个Mouse事件所对应的方法,分别为鼠标按下、鼠标移动、鼠标松开,代码如下:
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private bool startMove = false ; //用于标记是否在移动中
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 ;
}
|
上述代码作用:按下鼠标标记为开始移动,然后移动鼠标,若是标记移动中,说明是要移动panel1,故直接将鼠标当前的X坐标位置累加到panel1.Left属性上,从而实现移动,当鼠标弹起后,则将树形菜单的宽度设置为panel1.Left,从而实现树形菜单随panel1的移动而改变大小。
同时为了保证panel1的高度始终与树形菜单相同,在父窗口的Resize方法加入动态调整panel1的高度,代码如下:
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private void ParentForm_Resize( object sender, EventArgs e)
{
panel1.Height = panel1.Parent.Height;
}
|
到此就完成了整个的实现方案,为了便于模拟在树形菜单中双击打开子窗口的效果,同时也添加了如下代码:
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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>();
}
}
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附上完整的实现代码:
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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();
}
}
}
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最终效果如下图示:
说明:我这里为了体现分割器,故将其背景色设为红色,便于大家观察,这种解决方案与之前的解决方案功能上是相同的,但有一点小小区别,之前的解决方案中子窗口的标题栏是在父窗口的容器内,而本文的解决方案中子窗口在最大化后,子窗口的标题栏会与父窗口合并,如下图示,至于大家用哪种依实际场景。
后续时间我会继续研究winform关于插件式编程(近期工作任务要求),到时候同样会分享给大家,也欢迎大家一起交流,当然高手可以无视。
出处:https://www.cnblogs.com/zuowj/p/5225814.html
标签:treeView1,续篇,menuStrip1,Windows,多窗口,System,new,panel1,winform From: https://www.cnblogs.com/mq0036/p/16710534.html