DataAnnotation to compare two properties

c# .net asp.net-mvc asp.net-mvc-4 data-annotations
Mark picture Mark · Feb 21, 2014 · Viewed 37.2k times · Source

Is there any way of using data annotations to compare two form field (eg. to confirm an email address) are the same, before allowing the form to be posted?

eg. can the regular expression data annotation use the match function to reference another property in a ViewModel?

Answer

dove picture dove · Feb 21, 2014

Use the CompareAttribute

public string EmailAddress {get; set;}

[Compare(nameof(EmailAddress), ErrorMessage = "Emails mismatch")]
public string VerifiedEmailAddress { get; set; }

Related questions

Could not load file or assembly 'DotNetOpenAuth.Core

I get the following error when I start my asp net mvc 4 application: Could not load file or assembly 'DotNetOpenAuth.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=2780ccd10d57b246' or one of its dependencies. The system cannot find the file …

Read More
How does MVC 4 List Model Binding work?

If I want a set of inputs in a form to bind to a List in MVC 4, I know that the following naming convention for input name attributes will work: <input name="[0].Id" type="text" /> <input name="[1].…

Read More
Session Management in MVC

I am new in MVC. I am creating new WebApplication in MVC4 Razor. I want to maintain User Login session for all pages. Can any one Explain me how to maintain session for all views in MVC with small example.

Read More