RadzenDataGrid Filter and Sort don't work with ComplexType

[Andrey-2021]

Blazor project: https://github.com/Andrey-2021/RadzenDataGrid

Describe the bug
In RadzenDataGrid dont't work sort and filter with [ComplexType]

first class:
`public class PriceListService
{
[Key]
public int Id { get; set; }

[Required]
public PriceListServiceBase ServiceBase { get; set; } = new();

}
second class:
[ComplexType]
public class PriceListServiceBase
{
public int Index { get; set; }
public string? Code { get; set; }
public string? ServiceName { get; set; }
}
`

**RadzenDataGrid **

We have
Exception: Comparing complex types to null is not supported.

To Reproduce
Steps to reproduce the behavior:

1. Load project https://github.com/Andrey-2021/RadzenDataGrid
2. Config db connection string 'DefaultConnection' in appsettings.json
3. Run project
4. Click button 'First step -> Add Data to Db'
5. try sort column Index or Code or Name in RadzenDataGrid
   we get an error: Exception: Comparing complex types to null is not supported.

Screenshots

[enchev]

Since you are using LoadData the sorting is at your premises in the event handler:

If the EF cannot translate such sort expression to SQL you can use ToList() for your data to sort in-memory.