给控件添加 鼠标单击事件

Question

我这里有一个控件  DevExpress.XtraNavBar.NavBarItem
我对它进行了重写  public partial class DeNavBarItem : DevExpress.XtraNavBar.NavBarItem
     但它本身没有单击事件，我想给他添加些 鼠标事件,如获得焦点，和失去焦点事件，鼠标单击、等 
该怎样做，有谁做过没？ 

Answer 1

控件开发自定义事件
如public   event   EventHandler   TextChanged; 
protected   virtual   void   OnTextChanged() 
{ 
if(this.TextChanged!=null) 
this.TextChanged(this,EventArgs.Empty); 
} 自定义事件

Answer 2

最近也在用这套
实际上获取NavBarItem的焦点，单击等事件没有必要。
因为可以在NavBarControl 类中处理。
另外NavBarItem是支持单击事件的，事件名为
 LinkClicked和 LinkPressed 

Answer 3

 this.Loaded += new RoutedEventHandler(AddQuestion_Loaded);
类似于这样的

Answer 4

不知道你们明白没  this.Loaded +=
是我这个控件 没有  this.Loaded  怎么来的 +=

Answer 5

我已经自定义事件，和委托了
      public partial class DeNavBarItem : DevExpress.XtraNavBar.NavBarItem
    {        #region 事件声明 
        //
        // 摘要:
        //     Occurs when the mouse pointer is moved over the control.
        public event MouseEventHandler MouseMove;
        //
        // 摘要:
        //     A System.Windows.Forms.MouseEventArgs that contains the event data.
        [EditorBrowsable(EditorBrowsableState.Advanced)]
        protected virtual void OnMouseMove(MouseEventArgs e)
        {
            if (this.MouseMove != null) 
                this.MouseMove(this,e); 
        }
        
        #endregionnewNavBarItem.MouseMove+=new MouseEventHandler(newNavBarItem_MouseMove);
  void newNavBarItem_MouseMove(object sender, MouseEventArgs e)
  {
             
  } 子类里面也调用了，但是不执行

Answer 6

通过NavBarControl 类来处理
namespace WindowsFormsApplication4
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }        #region Windows Form Designer generated code        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.navBarControl1 = new DevExpress.XtraNavBar.NavBarControl();
            this.navBarGroup1 = new DevExpress.XtraNavBar.NavBarGroup();
            this.navBarGroup2 = new DevExpress.XtraNavBar.NavBarGroup();
            this.navBarItem6 = new DevExpress.XtraNavBar.NavBarItem();
            this.navBarItem7 = new DevExpress.XtraNavBar.NavBarItem();
            this.navBarItem8 = new DevExpress.XtraNavBar.NavBarItem();
            ((System.ComponentModel.ISupportInitialize)(this.navBarControl1)).BeginInit();
            this.SuspendLayout();
            // 
            // navBarControl1
            // 
            this.navBarControl1.ActiveGroup = this.navBarGroup1;
            this.navBarControl1.Groups.AddRange(new DevExpress.XtraNavBar.NavBarGroup[] {
            this.navBarGroup1,
            this.navBarGroup2});
            this.navBarControl1.Items.AddRange(new DevExpress.XtraNavBar.NavBarItem[] {
            this.navBarItem6,
            this.navBarItem7,
            this.navBarItem8});
            this.navBarControl1.Location = new System.Drawing.Point(51, 29);
            this.navBarControl1.Name = "navBarControl1";
            this.navBarControl1.OptionsNavPane.ExpandedWidth = 140;
            this.navBarControl1.Size = new System.Drawing.Size(140, 300);
            this.navBarControl1.TabIndex = 0;
            this.navBarControl1.Text = "navBarControl1";
            this.navBarControl1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.navBarControl1_MouseMove);
            // 
            // navBarGroup1
            // 
            this.navBarGroup1.Caption = "navBarGroup1";
            this.navBarGroup1.Expanded = true;
            this.navBarGroup1.ItemLinks.AddRange(new DevExpress.XtraNavBar.NavBarItemLink[] {
            new DevExpress.XtraNavBar.NavBarItemLink(this.navBarItem6),
            new DevExpress.XtraNavBar.NavBarItemLink(this.navBarItem7),
            new DevExpress.XtraNavBar.NavBarItemLink(this.navBarItem8)});
            this.navBarGroup1.Name = "navBarGroup1";
            // 
            // navBarGroup2
            // 
            this.navBarGroup2.Caption = "navBarGroup2";
            this.navBarGroup2.Name = "navBarGroup2";
            // 
            // navBarItem6
            // 
            this.navBarItem6.Caption = "navBarItem6";
            this.navBarItem6.Name = "navBarItem6";
            // 
            // navBarItem7
            // 
            this.navBarItem7.Caption = "navBarItem7";
            this.navBarItem7.Name = "navBarItem7";
            // 
            // navBarItem8
            // 
            this.navBarItem8.Caption = "navBarItem8";
            this.navBarItem8.Name = "navBarItem8";
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(292, 385);
            this.Controls.Add(this.navBarControl1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            ((System.ComponentModel.ISupportInitialize)(this.navBarControl1)).EndInit();
            this.ResumeLayout(false);        }        #endregion        private DevExpress.XtraNavBar.NavBarControl navBarControl1;
        private DevExpress.XtraNavBar.NavBarGroup navBarGroup1;
        private DevExpress.XtraNavBar.NavBarGroup navBarGroup2;
        private DevExpress.XtraNavBar.NavBarItem navBarItem6;
        private DevExpress.XtraNavBar.NavBarItem navBarItem7;
        private DevExpress.XtraNavBar.NavBarItem navBarItem8;    }
}using System;
using System.Windows.Forms;
using DevExpress.XtraNavBar.ViewInfo;namespace WindowsFormsApplication4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void Form1_Load(object sender, EventArgs e)
        {        }        private void navBarControl1_MouseMove(object sender, MouseEventArgs e)
        {
            NavBarViewInfo vi = this.navBarControl1.GetViewInfo();
            if (vi.HotTrackedLink != null)
            {
                Console.WriteLine(vi.HotTrackedLink.Item.Name);
            }            if (vi.PressedLink != null)
                Console.WriteLine(vi.PressedLink.Item.Name);
        }
    }
}

Answer 7

  Private Sub NavBarControl1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles NavBarControl1.MouseDown
        Dim vi As NavBarViewInfo = Me.NavBarControl1.GetViewInfo()
        If e.Button = MouseButtons.Left Then
            If vi.HotTrackedGroup Is Nothing Then Exit Sub
            Select Case vi.HotTrackedGroup.Caption
                Case "改装企业"
                    NavBarGroup1.Expanded = Not NavBarGroup1.Expanded
                Case "终端用户"
                    NavBarGroup2.Expanded = Not NavBarGroup2.Expanded
                Case "气瓶企业"
                    NavBarGroup3.Expanded = Not NavBarGroup3.Expanded
                Case "套装企业"
                    NavBarGroup4.Expanded = Not NavBarGroup4.Expanded
                Case "特检部门"
                    NavBarGroup5.Expanded = Not NavBarGroup5.Expanded
                Case "质检部门"
                    NavBarGroup6.Expanded = Not NavBarGroup6.Expanded
                Case "加气站"
                    NavBarGroup7.Expanded = Not NavBarGroup7.Expanded
                Case "汽车厂"
                    NavBarGroup8.Expanded = Not NavBarGroup8.Expanded
                Case "经销商"
                    NavBarGroup9.Expanded = Not NavBarGroup9.Expanded
                Case "系统管理"
                    NavBarGroup10.Expanded = Not NavBarGroup10.Expanded
            End Select
        End If