AX.FireTrainingSys/FireTrainingSys/ObjectIdGenerator.cs

using Microsoft.EntityFrameworkCore.ChangeTracking;
using Microsoft.EntityFrameworkCore.ValueGeneration;

namespace AX.FireTrainingSys
{
    /// <summary>
    /// ObjectId 生成器。
    /// </summary>
    public class ObjectIdGenerator : ValueGenerator<string>
    {
        public override bool GeneratesTemporaryValues => false;

        public override string Next(EntityEntry entry)
        {
            return ObjectId.NewId().ToString();
        }
    }
}