How to localize the property names in the error messages in the asp net core n

Introduction

ASP.NET is a popular language used for web applications. One common requirement in web development is the localization of error messages. In this article, we will explore how to the property names in error messages in ASP.NET Core.

Step 1: Set up Localization

The first step is to set up localization in your ASP.NET Core application. This involves the supported cultures and the necessary for localization. Here's an example of how to set up localization in the Startup.cs file:


public void ConfigureServices(IServiceCollection services)
{
    services.AddLocalization( => options.ResourcesPath = "Resources");
    
    services.AddMvc()
        .AddViewLocalization(LanguageViewLocationExpanderFormat.Suffix)
        .AddDataAnnotationsLocalization();
}

In the above code, we configure the localization services and specify the path to the resources . We also add localization support to the MVC framework and enable data annotations localization.

Step 2: Create Files

Next, we need to create resource files for each supported culture. These resource files will contain the localized property names for error messages. For example, if we support English and French, we would create two resource files: ValidationMessages.en.resx and ValidationMessages.fr.resx.

In each resource file, add a key-value pair for each property name you want to localize. The key should be the name of the property, and the value should be the localized name. Here's an example:


Key               | Value (English) | Value (French)
--------------------------------------------------
FirstName         | First Name      | Prénom
LastName          | Last Name       | Nom de famille
Email             | Email           | Email

Step 3: Use Localized Property Names

Now that we have set up localization and created the resource files, we can use the localized property names in error messages. To do this, we need to modify the validation attributes in our model classes. Here's an example:


public class User
{
    [Required(ErrorMessage = "The {0} field is required.")]
    [Display(Name = "FirstName")]
    public string FirstName { get; set; }
    
    [Required(ErrorMessage = "The {0} field is required.")]
    [Display(Name = "LastName")]
    public string LastName { get; set; }
    
    [Required(ErrorMessage = "The {0} field is required.")]
    [EmailAddress(ErrorMessage = "The {0} field is not a valid email address.")]
    [Display(Name = "Email")]
    public string Email { get; set; }
}

In the above code, we use the Display attribute to specify the localized property name for each property. The {0} placeholder will be replaced with the localized property name in the error message.

Conclusion

Localizing property names in error messages is an aspect of web development. By following the steps outlined in this article, you can easily localize property names in ASP.NET Core applications. Remember to set up localization, create resource files, and use the Display attribute to specify the localized property names. Happy coding!

Rate this post

Leave a Reply

Your email address will not be published. Required fields are marked *

Table of Contents