Revit 二次开发之“通过连接器找到所属元素”

通过连接器找到所属元素。

[Transaction(TransactionMode.Automatic)]
[Regeneration(RegenerationOption.Automatic)]
public class GetElementByConnector : IExternalCommand
{
    public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
    {
        UIApplication uiApp = commandData.Application;
        Document doc = uiApp.ActiveUIDocument.Document;
        Selection sel = uiApp.ActiveUIDocument.Selection;

        Reference refelem = sel.PickObject(ObjectType.Element, "请选择一个风管");
        Duct duct = refelem.Element as Duct;//这里也可以是风道末端之类MEPSystem

        ConnectorSetIterator csi = duct.ConnectorManager.Connectors.ForwardIterator();
        Connector conn = null;
        while (csi.MoveNext())
        {
            conn = csi.Current as Connector;
        }
        GetElementAtConnector(conn);

        return Result.Succeeded;
    }
    public void GetElementAtConnector(Connector connector)
    {
        MEPSystem mepSystem = connector.MEPSystem;
        //if (null != mepSystem)//加上这个判断风管不属于
        if (true)
        {
            string message = "Connector is owned by:" + connector.Owner.Name;
            if (connector.IsConnected == true)//是否连接其他，比如弯头
            {
                ConnectorSet connectorSet = connector.AllRefs;
                ConnectorSetIterator csi = connectorSet.ForwardIterator();
                while (csi.MoveNext())
                {
                    Connector connected = csi.Current as Connector;
                    if (null != connected)
                    {
                        if (connected.ConnectorType == ConnectorType.EndConn ||
                            connected.ConnectorType == ConnectorType.CurveConn ||
                            connected.ConnectorType == ConnectorType.PhysicalConn)
                        {
                            message += "\nConnecotr is connected to:" + connected.Owner.Name;
                            message += "\nConnection type is:" + connected.ConnectorType;
                        }
                    }
                }
            }
            else
            {
                message += "\nConnector is not connected to anything.";
            }
            MessageBox.Show(message, "Revit");
        }
    }
}

end