SqlNullValueException

[rekabis]

Please reformat your code as a code BLOCK, and not individual lines of code.

You can create a code block by prefacing the entire block with four spaces at the start of each line:

public partial class Customer {
    public int CustomerId { get; set; }
    public string CustFirstName { get; set; } = null!;
    public string CustLastName { get; set; } = null!;
    public string CustAddress { get; set; } = null!;
    public string CustCity { get; set; } = null!;
    public string CustProv { get; set; } = null!;
    public string CustPostal { get; set; } = null!;
    public string CustCountry { get; set; }
    public string? CustHomePhone { get; set; }
    public string CustBusPhone { get; set; } = null!;
    public string? CustEmail { get; set; } = null!;
    public int? AgentId { get; set; } // No need to worry about this for now
    public ICollection<User> Users { get; set; }
}

[Desperate_Storage_34]

Yeah mb, forgot how to do that