【OPMCE C#】创建管线编号问题

建议你可以看看返回的status是什么值

创建第二条管线编号时返回的是Duplicate

如果文件已有某管线编号，新管线编号只修改了管径。此时用程序创建是不成功的，但手动是可以的，这种情况只能用手动创建么？

符老师，我这两天刚好也在用这个接口，看一下opm sdk，感觉是sdk封装有bug，软件本身是可以创建的，用sdk的接口不行，里面只判断了等级库和number，这个显然是不合理的

管线号由那几位属性拼接成，是可以在schema中定义的，判断管线号是否重复，应该判断NAME属性值是否重复

两位好！SDK中提供的API函数往往不是软件界面中工具的直接对应。一个工具的后台代码往往由很多行代码组成。这样做当然是为了SDK的灵活性。

所以，是否可以推断工具的做法是：①先判断该管线号是否存在？②如果存在就删除它；③用新的管线参数创建该管线号。

private static ItemStatus CreateNetworkSystem(out NetworkSystem networkSystem, NetworkSystemType networkSystemType, List<NamedItem> namedItems, string specification, string number, Dictionary<string, string> properties)
{
    networkSystem = null;
    if (namedItems == null)
    {
        return ItemStatus.Failed;
    }

    if (NetworkSystemExists(networkSystemType, namedItems, specification, number, out string name))
    {
        networkSystem = new NetworkSystem();
        networkSystem.m_name = name;
        networkSystem.m_type = networkSystemType;
        ComponentBase.SetActiveNetworkSystem(networkSystem);
        return ItemStatus.Duplicate;
    }

    try
    {
        BMECApi instance = BMECApi.Instance;
        string networkSystem2 = GetNetworkSystem(networkSystemType);
        IECInstance iECInstance = instance.InstanceManager.CreateECInstance(networkSystem2);
        iECInstance.InstanceId = "mechanical";
        if (!string.IsNullOrEmpty(specification))
        {
            iECInstance["SPECIFICATION"].StringValue = specification;
        }

        if (!string.IsNullOrEmpty(specification))
        {
            iECInstance["NUMBER"].StringValue = number;
        }

        SetNamedItemsAsProperties(iECInstance, networkSystemType, namedItems);
        DgnUtilities instance2 = DgnUtilities.GetInstance();
        instance2.WriteECInstanceToDgn(iECInstance, instance2.GetDGNConnection());
        SetNamedItems(iECInstance, networkSystemType, namedItems);
        SetProperties(iECInstance, properties);
        instance2.SaveModifiedInstance(iECInstance, instance2.GetDGNConnection());
        networkSystem = new NetworkSystem();
        networkSystem.m_specification = specification;
        networkSystem.m_number = number;
        networkSystem.m_namedItems = namedItems;
        networkSystem.m_name = iECInstance["NAME"].StringValue;
        networkSystem.m_type = networkSystemType;
        networkSystem.m_instance = iECInstance;
        ComponentBase.SetActiveNetworkSystem(networkSystem);
    }
    catch
    {
        return ItemStatus.Failed;
    }

    return ItemStatus.Success;
}

这个是SDK中创建管线号的逻辑，本质上是创建了ECInstance，然后设置相关属性，可以手动创建。

但是如果想要正常使用SDK，必须设置ComponentBase的s_networkSystem，而对应的方法是internal static void SetActiveNetworkSystem(NetworkSystem networkSystem)，可以考虑使用反射调用

Type type = typeof(ComponentBase);
MethodInfo methodInfo = type.GetMethod("SetActiveNetworkSystem", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
methodInfo?.Invoke(null, new object[] { networkSystem });
hvacIdentificationCode = networkSystem.Name;

StandardPreferencesUtilities.SetActiveHVACNetworkSystem(networkSystem);

SDK中很多非常有用的函数都是internal，不知道是为什么没有公开

private static ItemStatus CreateNetworkSystem(out NetworkSystem networkSystem, NetworkSystemType networkSystemType, List<NamedItem> namedItems, string specification, string number, Dictionary<string, string> properties)
{
    networkSystem = null;
    if (namedItems == null)
    {
        return ItemStatus.Failed;
    }

    if (NetworkSystemExists(networkSystemType, namedItems, specification, number, out string name))
    {
        networkSystem = new NetworkSystem();
        networkSystem.m_name = name;
        networkSystem.m_type = networkSystemType;
        ComponentBase.SetActiveNetworkSystem(networkSystem);
        return ItemStatus.Duplicate;
    }

    try
    {
        BMECApi instance = BMECApi.Instance;
        string networkSystem2 = GetNetworkSystem(networkSystemType);
        IECInstance iECInstance = instance.InstanceManager.CreateECInstance(networkSystem2);
        iECInstance.InstanceId = "mechanical";
        if (!string.IsNullOrEmpty(specification))
        {
            iECInstance["SPECIFICATION"].StringValue = specification;
        }

        if (!string.IsNullOrEmpty(specification))
        {
            iECInstance["NUMBER"].StringValue = number;
        }

        SetNamedItemsAsProperties(iECInstance, networkSystemType, namedItems);
        DgnUtilities instance2 = DgnUtilities.GetInstance();
        instance2.WriteECInstanceToDgn(iECInstance, instance2.GetDGNConnection());
        SetNamedItems(iECInstance, networkSystemType, namedItems);
        SetProperties(iECInstance, properties);
        instance2.SaveModifiedInstance(iECInstance, instance2.GetDGNConnection());
        networkSystem = new NetworkSystem();
        networkSystem.m_specification = specification;
        networkSystem.m_number = number;
        networkSystem.m_namedItems = namedItems;
        networkSystem.m_name = iECInstance["NAME"].StringValue;
        networkSystem.m_type = networkSystemType;
        networkSystem.m_instance = iECInstance;
        ComponentBase.SetActiveNetworkSystem(networkSystem);
    }
    catch
    {
        return ItemStatus.Failed;
    }

    return ItemStatus.Success;
}

这个是SDK中创建管线号的逻辑，本质上是创建了ECInstance，然后设置相关属性，可以手动创建。

但是如果想要正常使用SDK，必须设置ComponentBase的s_networkSystem，而对应的方法是internal static void SetActiveNetworkSystem(NetworkSystem networkSystem)，可以考虑使用反射调用

Type type = typeof(ComponentBase);
MethodInfo methodInfo = type.GetMethod("SetActiveNetworkSystem", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
methodInfo?.Invoke(null, new object[] { networkSystem });
hvacIdentificationCode = networkSystem.Name;

StandardPreferencesUtilities.SetActiveHVACNetworkSystem(networkSystem);

SDK中很多非常有用的函数都是internal，不知道是为什么没有公开