How to set icon in 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 an icon in the ToolTip window with ToolTip text using ToolTipIcon Property. This property accepts four different types of values that are defined under ToolTipIcon enum and the values are:

None: It means ToolTip window does not contain icons.
Info: It is a information icon.
Warning: It is a warning icon.
Error: It is an error icon.

You can set this property in two different ways:

1. Design-Time: It is the easiest way to set the value of the ToolTipIcon 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 ToolTipIcon property.

Output:

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

public System.Windows.Forms.ToolTipIcon ToolTipIcon { get; set; }

Here, ToolTipIcon represents a value provided by the ToolTipIcon enum. The following steps show how to set the ToolTipIcon 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 ToolTipIcon property of the Tooltip provided by the ToolTip class.
```
  // Setting the ToolTipIcon property  t.ToolTipIcon = ToolTipIcon.Info;  
```

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.SetToolTip(box1, "Name should start with Capital letter"); 
        t.SetToolTip(box2, "Password should be greater than 8 words"); 
    } 
} 
} 
 
  

Output:

How to set Text on the Label in C#?

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How to set icon in the ToolTip in C#?

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