无法测试确切的API，但是一般的方法是创建一个受约束的泛型方法并通过反射进行调用：
public static class EFFilterExtensions
{
public static void SetSoftDeleteFilter(this ModelBuilder modelBuilder, Type entityType)
{
SetSoftDeleteFilterMethod.MakeGenericMethod(entityType)
.Invoke(null, new object[] { modelBuilder });
}
static readonly MethodInfo SetSoftDeleteFilterMethod = typeof(EFFilterExtensions)
.getmethods(BindingFlags.Public | BindingFlags.Static)
.Single(t => t.IsGenericMethod && t.Name == "SetSoftDeleteFilter");
public static void SetSoftDeleteFilter<TEntity>(this ModelBuilder modelBuilder)
where TEntity : class, ISoftDeleteModel
{
modelBuilder.Entity<TEntity>().HasQueryFilter(x => !x.IsDeleted);
}
}
现在，您可以在您的内部使用类似的内容OnModelCreating：
foreach (var type in modelBuilder.Model.GetEntityTypes())
{
if (typeof(ISoftDeleteModel).IsAssignableFrom(type.ClrType))
modelBuilder.SetSoftDeleteFilter(type.ClrType);
}
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