CODEWITHSUNDEEP
c#asp.netasp.net-mvcmodel-binding
wegelagerer
wegelagerer

Reputation: 3720

Including model property programmatically in ASP.net MVC

I know that I can exclude or include bind on property via Bind attribute, but I'm not sure if I can do that programmatically (without creating separate ViewModel). The reason I'd like to achieve this is because I have a password field which should be included only in case the user has entered value in its field.

Upvotes: 1

Views: 289

Answers (2)

Ibrahim ben Salah
Ibrahim ben Salah

Reputation: 733

Make the Password property in the viewModel optional, in other words don't annotate with required. In general all other validations (except for RequiredAttribute) pass when value is empty/null.

class MyViewModel
{
     [MinLength(6)]
     [HasUpper(1)]
     [HasLower(1)]
     // [Required] remove this line
     public String Password { get; set; }
}

then in your controller action test if Password property is null or empty

if (!String.IsNullOrEmpty(model.Password)) 
{
    // the user has entered value in its field
}

Upvotes: 2

Mihai Dinculescu
Mihai Dinculescu

Reputation: 20033

Use:

if (string.IsNullOrEmpty(model.Password))
{
    ModelState.Remove("Password");
}

Upvotes: 2

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