EF核心以编程方式更改隔离级别？

using Microsoft.EntityFrameworkCore;
using System;
using System.Threading.Tasks;

public class MyDbContext : DbContext
{
    // ... 数据库上下文的定义 ...
}

public class Program
{
    public static async Task Main(string[] args)
    {
        using var context = new MyDbContext();
        
        await context.Database.ExecuteSqlRawAsync("SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED");
        
        using (var transaction = await context.Database.BeginTransactionAsync(System.Data.IsolationLevel.ReadUncommitted))
        {
            try
            {
                // 执行数据库操作
                // ...

                await transaction.CommitAsync();
            }
            catch (Exception)
            {
                await transaction.RollbackAsync();
                throw;
            }
        }
    }
}