C# c语言中鼠标悬停事件未在面板上触发#

我正在尝试使用c编写winform应用程序中面板鼠标悬停事件的代码。这是我的密码

private void viewscreen_MouseHover(object sender, EventArgs e)
    {
        statuspnl.Enabled = true;
        statuspnl.Visible = true;
    }

但问题是，当我将鼠标移到viewscreen面板上时，事件没有触发

 // viewscreen
        // 
        this.viewscreen.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
        this.viewscreen.Controls.Add(this.statuspnl);
        this.viewscreen.Location = new System.Drawing.Point(208, 16);
        this.viewscreen.Name = "viewscreen";
        this.viewscreen.Size = new System.Drawing.Size(370, 290);
        this.viewscreen.TabIndex = 0;
        this.viewscreen.MouseHover += new System.EventHandler(this.viewscreen_MouseHover);

---

你有这个密码吗

this.viewscreen.MouseHover += new System.EventHandler(this.viewscreen_MouseHover);

它应该自动添加，但请确保您不更改此。。。 另一种方法-删除鼠标悬停事件并再次添加它

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希望这会有所帮助。

您的查看屏幕是表单还是面板？

---

您是否启用了面板/窗体？

请创建一个名为“panelvisible”的窗口应用程序。添加一个表格作为“表格1” 并将这些代码添加到相应的文件中

设计者代码

namespace panelvisible
{
    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.panel1 = new System.Windows.Forms.Panel();
            this.label1 = new System.Windows.Forms.Label();
            this.panel2 = new System.Windows.Forms.Panel();
            this.panel1.SuspendLayout();
            this.SuspendLayout();
            // 
            // panel1
            // 
            this.panel1.BackColor = System.Drawing.Color.Red;
            this.panel1.Controls.Add(this.panel2);
            this.panel1.Controls.Add(this.label1);
            this.panel1.Location = new System.Drawing.Point(101, 36);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(200, 100);
            this.panel1.TabIndex = 0;
            this.panel1.MouseHover += new System.EventHandler(this.panel1_MouseHover);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(49, 42);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(31, 13);
            this.label1.TabIndex = 0;
            this.label1.Text = "Hello";
            this.label1.Visible = false;
            // 
            // panel2
            // 
            this.panel2.BackColor = System.Drawing.Color.Gray;
            this.panel2.Location = new System.Drawing.Point(33, 70);
            this.panel2.Name = "panel2";
            this.panel2.Size = new System.Drawing.Size(118, 10);
            this.panel2.TabIndex = 1;
            this.panel2.Visible = false;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(494, 205);
            this.Controls.Add(this.panel1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.panel1.ResumeLayout(false);
            this.panel1.PerformLayout();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.Panel panel1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Panel panel2;
    }
}

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如何附加此事件处理程序？我的意思是，您的代码如何知道viewscreen\u MouseHover处理viewscreen控件的MouseHover事件？您的代码如何知道此事件处理程序用于该控件的特定事件？自动生成的设计器代码？是否在表单加载时显式设置事件处理程序？断点/调试的结果是什么？看一看你的帖子，你会发现没有多少人会出于某种原因帮助你。@DeeMac你的问题的答案已经在发布的代码中了。请看问题的最后一行代码。他将处理程序显式附加到保存viewscreen控件的同一类中的viewscreen_MouseHover方法。注意控件和方法前面的“this”？谢谢。。我不能投你的票。。bcoz那家伙吃了我的Rep当我在onpaint方法中将鼠标悬停在我绘制的正方形上时，这不起作用：(

using System;
using System.Windows.Forms;

namespace panelvisible
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void panel1_MouseHover(object sender, EventArgs e)
        {
            this.label1.Visible = true;
            this.label1.Enabled = true;
            this.panel2.Visible = true;
            this.panel2.Enabled = true;
        }


    }
}