How to show a custom error message for DisplayFormat attribute In Asp.Net MVC?

Question

How to show a custom error message for

[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:d}")]

The code in my model is following,

[Display(Name = "When was that document issued?")]
[DataType(DataType.Date, ErrorMessageResourceName = "DocumentIssueDate_DataType",ErrorMessageResourceType = typeof(CustomErrorMessages))]
[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:d}")]
 public DateTime? DocumentIssueDate { get; set; }

In my View when I enter 201 in the date textbox I get the following error message. How do I modify the error message below.

The value '201' is not valid for DocumentIssueDate.

A string message in the resource file (.resx). For e.g. "Date must be entered as dd/mm/yyyy (e.g. 31/01/1997)." — Diganta Kumar
– Diganta Kumar, Commented Jan 27, 2012 at 23:24

pherris · Accepted Answer · 2014-12-26 20:03:56Z

2

After a lot of research I had no luck. The only solution was to use RegularExpression.

Instead of using:

[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:d}")]

You can use:

[RegularExpression(@"^(3[01]|[12][0-9]|0[1-9])[-/](1[0-2]|0[1-9])[-/][0-9]{4}$", ErrorMessageResourceName = "Date Not Valid")]

The RegularExpression matches the date format dd/MM/yyyy.

regular still not test yes but you can search and edit if need

edited Dec 26, 2014 at 20:03

pherris

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answered Jun 27, 2014 at 3:43

Wolf

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Comments

Community · Accepted Answer · 2017-05-23 12:08:19Z

0

Try see answers Here. I think DisplayFormat designed not for validation, that is why you can not use it to check if entered string is valid.

edited May 23, 2017 at 12:08

CommunityBot

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answered Aug 31, 2012 at 6:33

Frigik

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