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Editorial Team
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Asked: 2026-06-17T18:36:08+00:00

In my View Model I have setup a field with this attributes. All work

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In my View Model I have setup a field with this attributes.

All work fine if the user enter the date and time in the correct format.

An error appear if the User do not insert the DateTime in the right format.

I would like have validation also in the client.

Could you tell me how to do it?

   [Required]
    [Display(Name = "Start DateTime")]
    [DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:MM/dd/yyyy HH:mm}")]
    public System.DateTime DateTimeStart { get; set; }
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1 Answer

  1. Editorial Team

    Firstly, what are you using to allow user to enter a date ?

    If you are using Jquery DatePicker, then see this example there is no way the user can enter date in wrong format (except for inspecting the element and changing the textbox value, which can be ignored.)

    Sample Code using Jquery Datepicker :

    <!doctype html>

<html lang="en">
<head>
  <meta charset="utf-8" />
  <title>jQuery UI Datepicker - Default functionality</title>
  <link rel="stylesheet" href="http://code.jquery.com/ui/1.10.0/themes/base/jquery-ui.css" />
  <script src="http://code.jquery.com/jquery-1.8.3.js"></script>
  <script src="http://code.jquery.com/ui/1.10.0/jquery-ui.js"></script>
  <link rel="stylesheet" href="/resources/demos/style.css" />
  <script>
  $(function() {
    $( "#datepicker" ).datepicker();
  });
  </script>
</head>
<body>

<p>Date: <input type="text" id="datepicker" /></p>


</body>
</html>

    and incase you are not using DatePicker I very strongly recommend you to use it.

    Incase you are new to datepicker, you can go through the following listed articles to get started :

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