C# ToolTip用法及代码示例

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 WindowsFormsApp34 {
public partial class Form1 : Form {
    public Form1()
    {
        InitializeComponent();
    }
    private void Form1_Load(object sender, EventArgs e)
    {
        // Creating and setting the
        // properties of the Label
        Label l1 = new Label();
        l1.Location = new Point(140, 122);
        l1.Text = "Name";
        // Adding this Label
        // control to the form
        this.Controls.Add(l1);
        // Creating and setting the
        // properties of the TextBox
        TextBox box1 = new TextBox();
        box1.Location = new Point(248, 119);
        box1.BorderStyle = BorderStyle.FixedSingle;
        // Adding this TextBox
        // control to the form
        this.Controls.Add(box1);
        // Creating and setting the
        // properties of Label
        Label l2 = new Label();
        l2.Location = new Point(140, 152);
        l2.Text = "Password";
        // Adding this Label
        // control to the form
        this.Controls.Add(l2);
        // Creating and setting the
        // properties of the TextBox
        TextBox box2 = new TextBox();
        box2.Location = new Point(248, 145);
        box2.BorderStyle = BorderStyle.FixedSingle;
        // Adding this TextBox
        // control to the form
        this.Controls.Add(box2);
        // Creating and setting the
        // properties of the ToolTip
        ToolTip t_Tip = new ToolTip();
        t_Tip.Active = true;
        t_Tip.AutoPopDelay = 4000;
        t_Tip.InitialDelay = 600;
        t_Tip.IsBalloon = true;
        t_Tip.ToolTipIcon = ToolTipIcon.Info;
        t_Tip.SetToolTip(box1, "Name should start with Capital letter");
        t_Tip.SetToolTip(box2, "Password should be greater than 8 words");
    }
}
}