C# ASP.NET : show an error message using validations

Question

I want to show validation errors when someone doesn't follow my validation rules (such as too few characters for a first name) or an error when they leave the field empty.

This is an example from my User.cs model class that is showing an error:

[Required(ErrorResponse= "Please do not leave first name field empty")]
[MinLength(4, ErrorResponse = "First name min length is 4")]
public string Firstname { get; set; }

The error I am getting:

Error CS0246: The type or namespace name 'ErrorResponse' could not be found (are you missing a using directive or an assembly reference?)

Lukasz Szczygielek · Accepted Answer · 2020-12-04 00:39:39Z

1

MinLength doesn't have a ErrorResponse property. I see ErrorMessage property instead.

answered Dec 4, 2020 at 0:39

Lukasz Szczygielek

3,1992 gold badges24 silver badges37 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Steven Halla Over a year ago

Thank you so much. I thought it was just a variable that could be called anything.I tried to click the check mark to mark it as answered for some reason not letting me.

Collectives™ on Stack Overflow

C# ASP.NET : show an error message using validations

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related