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How to set the title of the ToolTip in C#?
  • Last Updated : 19 Jul, 2019

In Windows Forms, the ToolTip represents a tiny pop-up box which appears when you place your pointer or cursor on the control and the purpose of this control is it provides a brief description about the control present in the windows form. In ToolTip, you are allowed to set the title in the ToolTip window which displays on the screen using ToolTipTitle Property.
The title is always written above the standard text and in bold letters. The maximum length of the title is 99 characters. If you try to enter more than 99 characters, then the title will not be displayed on the screen. You can set this property in two different ways:

1. Design-Time: It is the easiest way to set the value of the ToolTipTitle property as shown in the following steps:

  • Step 1: Create a windows form as shown in the below image:
    Visual Studio -> File -> New -> Project -> WindowsFormApp
  • Step 2: Drag the ToolTip from the ToolBox and drop it on the form. When you drag and drop this ToolTip on the form it will automatically add to the properties(named as ToolTip on ToolTip1) of every controls present in the current windows from.
  • Step 3: After drag and drop you will go to the properties of the ToolTip and set the value of the ToolTipTitle property.

    Output:

2. Run-Time: It is a little bit trickier than the above method. In this method, you can set the ToolTipTitle property of ToolTip programmatically with the help of given syntax:

public string ToolTipTitle { get; set; }

Here, the value of this property is of System.String type. And the string represents the title of the ToolTip window. The following steps show how to set the ToolTipTitle property of the ToolTip dynamically:

  • Step 1: Create a ToolTip using the ToolTip() constructor is provided by the ToolTip class.
    // Creating a ToolTip
    ToolTip t = new ToolTip();
    
  • Step 2: After creating Tooltip, set the ToolTipTitle property of the Tooltip provided by the ToolTip class.
    // Setting the ToolTipTitle property
    t.ToolTipTitle = "Important";
    
  • Step 3: And last add this ToolTip to the controls using SetToolTip() method. This method contains the control name and the text which you want to display in the ToolTip box.
    t.SetToolTip(box1, "Name should start with Capital letter");

    Example:




    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 = new ToolTip();
            t.Active = true;
            t.AutoPopDelay = 4000;
            t.InitialDelay = 600;
            t.IsBalloon = true;
            t.ToolTipIcon = ToolTipIcon.Info;
            t.ToolTipTitle = "Important";
            t.SetToolTip(box1, "Name should start with Capital letter");
            t.SetToolTip(box2, "Password should be greater than 8 words");
        }
    }
    }

    
    

    Output:




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