c#获取UG NX 文件类型是零件、装配体还是工程图

要获取UG NX文件的类型，可以使用以下代码示例：

using System;
using NXOpen;

class Program
{
    static void Main(string[] args)
    {
        string filePath = "C:\\example.prt"; //UG NX文件路径
        PartLoadStatus status;
        BasePart basePart = null;
        try
        {
            basePart = Session.GetSession().Parts.OpenBaseDisplay(filePath, out status);
            if (status.NumberOfFailures > 0)
            {
                throw new Exception("Failed to open the file: " + filePath);
            }
            if (basePart is Part)
            {
                Part part = (Part)basePart;
                if (part.ComponentAssembly.RootComponent == null)
                {
                    Console.WriteLine("The file is a part.");
                }
                else
                {
                    Console.WriteLine("The file is an assembly.");
                }
            }
            else if (basePart is DrawingSheet)
            {
                Console.WriteLine("The file is a drawing.");
            }
            else
            {
                Console.WriteLine("The file type is unknown.");
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
        finally
        {
            if (basePart != null)
            {
                basePart.Close(BasePart.CloseWholeTree.False, BasePart.CloseModified.CloseModified, null);
            }
        }
        Console.ReadLine();
    }
}

以上代码会打开UG NX文件并判断其类型，输出结果为：

- 如果文件是零件，输出 "The file is a part."
- 如果文件是装配体，输出 "The file is an assembly."
- 如果文件是工程图，输出 "The file is a drawing."
- 如果文件类型未知，输出 "The file type is unknown."