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Change error message mvc

You right, your problem is that your property is not nullable. For not nullable properties attribute Required is meaningless. When there is no StartDate value, validation is not go to your Required attribute and fails on previous. Yes, you can use Data annotations extensions, mark your property as the following: [ Required( ErrorMessage = " Please enter how many Stream Entries are displayed per page. " ) ] [ Range( 0, 250, ErrorMessage = " Please enter. In your model class, add change the [ Required] attribute to [ Required( ErrorMessage = " Material cost is required" ) ] public decimal MaterialCost { get; set; }. Another approach is to set it from JavaScript using JQuery or override. I think you can achieve this with data annotations. Just mark the model items as [ Required]. If you want to override the error message just do this [ Required( ErrorMessage = " Name is required" ) ].

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  • Video:Change message error

    Change message error

    See this post: Error messages. You should override methods of IdentityErrorDescriber to change identity error messages. public class YourIdentityErrorDescriber : IdentityErrorDescriber { public override IdentityError PasswordRequiresUpper( ) { return new. I have one dirty solution. Create custom model binder: public class CustomModelBinder< T> : DefaultModelBinder { public override object BindModel ( ControllerContext controllerContext, ModelBindingContext bindingContext). ErrorMessage = " whatever your error message is" ; } public IEnumerable< ModelClientValidationRule>. I used custom resources, well described at http: / / afana. me/ post/ aspnet- mvc- internationalization. Important is, that I. Add a resx file in that folder. Say MyNewResource.

    Add resource key PropertyValueInvalid with the desired message format ( e. " content { 0} is invalid for field { 1} " ). If you want to change PropertyValueRequired too add it. You can specify the StringLength attribute as follows on numerous properties [ StringLength( 20, ErrorMessageResourceName = " StringLengthMessage", ErrorMessageResourceType = typeof( Resource) ) ] public string.