HTML | DOM Input DatetimeLocal readOnly Property

Difficulty Level : Basic
Last Updated : 27 Feb, 2019

The Input DatetimeLocal readOnly property is used to set or return whether a datetimeLocal field should be read-only, or not. Once a field has been declared read-only, it cannot be further modified. However, the read-only field can be tabbed, highlighted and can be used for copying text.
The HTML readonly attribute is reflected by the Input DatetimeLocal readOnly property.

Syntax:

To return the readOnly property:
```
datetimelocalObject.readOnly
```

To set the readOnly property:

datetimelocalObject.readOnly = true|false

Property Value:

true|false : It is used to specify whether the datetimeLocal field will be read-only or not.

Below program illustrates the DatetimeLocal readOnly property :
Example: Setting a datetimeLocal field to read-only.

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
      Input DatetimeLocal  
      readOnly Property in HTML 
  </title> 
    <style> 
        h1 { 
            color: green; 
        } 
          
        h2 { 
            font-family: Impact; 
        } 
          
        body { 
            text-align: center; 
        } 
    </style> 
</head> 
  
<body> 
  
    <h1>GeeksforGeeks</h1> 
    <h2> 
      Input DatetimeLocal readOnly Property 
  </h2> 
    <br> Date Of Birth: 
    
    <input type="datetime-local"
           id="Test_DatetimeLocal" 
           name="DOB"> 
  
    <p> 
      To set the date time to read-only, 
      double-click the "Set Read-Only" button. 
  </p> 
  
    <button ondblclick="My_DatetimeLocal()"> 
      Set Read-Only 
  </button> 
  
    <script> 
        function My_DatetimeLocal() { 
            document.getElementById( 
              "Test_DatetimeLocal").readOnly =  
              true; 
        } 
    </script> 
  
</body> 
  
</html> 

Output:

After clicking the button

Supported Browsers:

Apple Safari
Internet Explorer
Firefox
Google Chrome
Opera

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