实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; namespace Menu { /// <summary> /// Form1 的摘要说明。 /// </summary> public class Form1 : System.Windows.Forms.Form { private System.Windows.Forms.MainMenu mainMenu1; private System.Windows.Forms.MenuItem menuItem1; private System.Windows.Forms.MenuItem menuItem2; private System.Windows.Forms.MenuItem menuItem3; private System.Windows.Forms.PictureBox pictureBox1; private System.Windows.Forms.PictureBox pictureBox2; /// <summary> /// 必需的设计器变量。 /// </summary> private System.ComponentModel.Container components = null; public Form1() { // // Windows 窗体设计器支持所必需的 // InitializeComponent(); // // TODO: 在 InitializeComponent 调用后添加任何构造函数代码 // } /// <summary> /// 清理所有正在使用的资源。 /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if (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() { System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1)); this.mainMenu1 = new System.Windows.Forms.MainMenu(); this.menuItem1 = new System.Windows.Forms.MenuItem(); this.menuItem2 = new System.Windows.Forms.MenuItem(); this.menuItem3 = new System.Windows.Forms.MenuItem(); this.pictureBox1 = new System.Windows.Forms.PictureBox(); this.pictureBox2 = new System.Windows.Forms.PictureBox(); this.SuspendLayout(); // // mainMenu1 // this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] { this.menuItem1}); // // menuItem1 // this.menuItem1.Index = 0; this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] { this.menuItem2, this.menuItem3}); this.menuItem1.Text = "自绘菜单"; // // menuItem2 // this.menuItem2.Index = 0; this.menuItem2.OwnerDraw = true; this.menuItem2.Text = "显示名车图片"; this.menuItem2.DrawItem = new System.Windows.Forms.DrawItemEventHandler(this.menuItem2_DrawItem); this.menuItem2.Click = new System.EventHandler(this.menuItem2_Click); this.menuItem2.MeasureItem = new System.Windows.Forms.MeasureItemEventHandler(this.menuItem2_MeasureItem); // // menuItem3 // this.menuItem3.Index = 1; this.menuItem3.OwnerDraw = true; this.menuItem3.Text = "显示风光图片"; this.menuItem3.DrawItem = new System.Windows.Forms.DrawItemEventHandler(this.menuItem3_DrawItem); this.menuItem3.Click = new System.EventHandler(this.menuItem3_Click); this.menuItem3.MeasureItem = new System.Windows.Forms.MeasureItemEventHandler(this.menuItem3_MeasureItem); // // pictureBox1 // this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image"))); this.pictureBox1.Location = new System.Drawing.Point(0, 0); this.pictureBox1.Name = "pictureBox1"; this.pictureBox1.Size = new System.Drawing.Size(344, 184); this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage; this.pictureBox1.TabIndex = 0; this.pictureBox1.TabStop = false; // // pictureBox2 // this.pictureBox2.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox2.Image"))); this.pictureBox2.Location = new System.Drawing.Point(0, 0); this.pictureBox2.Name = "pictureBox2"; this.pictureBox2.Size = new System.Drawing.Size(344, 184); this.pictureBox2.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage; this.pictureBox2.TabIndex = 1; this.pictureBox2.TabStop = false; // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(344, 185); this.Controls.Add(this.pictureBox2); this.Controls.Add(this.pictureBox1); this.MaximizeBox = false; this.Menu = this.mainMenu1; this.Name = "Form1"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "演示自绘式菜单"; this.ResumeLayout(false); } #endregion /// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() { Application.Run(new Form1()); } private void menuItem2_MeasureItem(object sender, System.Windows.Forms.MeasureItemEventArgs e) {//设置菜单项"显示名车图片"的显示区域 e.ItemHeight=50; e.ItemWidth=180; } private void menuItem2_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e) {//绘制第一个菜单 Graphics g=e.Graphics; //判断菜单的状态 if((e.State&DrawItemState.Selected)==DrawItemState.Selected) {//当菜单被先选中时 //绘制背景填充矩形 g.FillRectangle(new SolidBrush(Color.Red),e.Bounds.Left,e.Bounds.Top,e.Bounds.Width,e.Bounds.Height); //绘制菜单项标题 String MyString = "显示名车图片"; Font MyFont = new Font("宋体", 20,FontStyle.Bold); SolidBrush MyBrush = new SolidBrush(Color.Yellow); float x = 10.0F; float y = 10.0F; StringFormat MyFormat = new StringFormat(); MyFormat.FormatFlags = StringFormatFlags.NoWrap; e.Graphics.DrawString(MyString, MyFont, MyBrush, x, y, MyFormat); } else {//当菜单未被先选中时 //绘制背景填充矩形 g.FillRectangle(new SolidBrush(Color.Blue),e.Bounds.Left,e.Bounds.Top,e.Bounds.Width,e.Bounds.Height); //绘制菜单标题 String MyString = "显示名车图片"; Font MyFont = new Font("宋体", 20,FontStyle.Bold); SolidBrush MyBrush = new SolidBrush(Color.Yellow); float x = 10.0F; float y = 10.0F; StringFormat MyFormat = new StringFormat(); MyFormat.FormatFlags = StringFormatFlags.NoWrap; e.Graphics.DrawString(MyString, MyFont, MyBrush, x, y, MyFormat); } } private void menuItem3_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e) {//绘制第二个菜单 Graphics g=e.Graphics; //判断菜单的状态 if((e.State&DrawItemState.Selected)==DrawItemState.Selected) {//当菜单被先选中时 //绘制背景填充矩形 g.FillRectangle(new SolidBrush(Color.Red),e.Bounds.Left,e.Bounds.Top,e.Bounds.Width,e.Bounds.Height); //绘制菜单项标题 String MyString = "显示风光图片"; Font MyFont = new Font("宋体", 20,FontStyle.Bold); SolidBrush MyBrush = new SolidBrush(Color.Yellow); float x = 10.0F; float y = 60.0F; StringFormat MyFormat = new StringFormat(); MyFormat.FormatFlags = StringFormatFlags.NoWrap; e.Graphics.DrawString(MyString, MyFont, MyBrush, x, y, MyFormat); } else {//当菜单未被先选中时 //绘制背景填充矩形 g.FillRectangle(new SolidBrush(Color.Green),e.Bounds.Left,e.Bounds.Top,e.Bounds.Width,e.Bounds.Height); //绘制菜单标题 String MyString = "显示风光图片"; Font MyFont = new Font("宋体", 20,FontStyle.Bold); SolidBrush MyBrush = new SolidBrush(Color.Yellow); float x = 10.0F; float y = 60.0F; StringFormat MyFormat = new StringFormat(); MyFormat.FormatFlags = StringFormatFlags.NoWrap; e.Graphics.DrawString(MyString, MyFont, MyBrush, x, y, MyFormat); } } private void menuItem3_MeasureItem(object sender, System.Windows.Forms.MeasureItemEventArgs e) {//设置菜单项"显示风光图片"的显示区域 e.ItemHeight=50; e.ItemWidth=180; } private void menuItem2_Click(object sender, System.EventArgs e) {//响应"显示名车图片"菜单项的单击事件 this.pictureBox1.Visible=true; this.pictureBox2.Visible=false; } private void menuItem3_Click(object sender, System.EventArgs e) {//响应"显示风光图片"菜单项的单击事件 this.pictureBox2.Visible=true; this.pictureBox1.Visible=false; } } }
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