Working with Custom Claim Values in ASP.NET Core Razor Views: Accessing and Utilizing User-Specific Custom Claims in CSHTML Pages

 To access custom claim values in a Razor view (.cshtml) page in ASP.NET Core, you can use the User property and the FindFirstValue method to retrieve the specific custom claim value. Here's an example:

1. In your Razor view file (.cshtml), you can access the custom claim values using the User property and the FindFirstValue method. Here's an example:

@using System.Security.Claims

@{
    var customClaimValue = User.FindFirstValue("CustomClaimType");
}

<p>Custom Claim Value: @customClaimValue</p>

In the above code, User.FindFirstValue("CustomClaimType") retrieves the value of the custom claim with the specified claim type, "CustomClaimType". You can replace "CustomClaimType" with the actual claim type you defined in your custom claim.

Ensure that you have set up authentication, added the custom claims to the user's identity, and authenticated the user properly in your ASP.NET Core application.

Remember to handle null or empty values for claims to ensure a smooth user experience.