使用.NET（C#或VB.NET）开发NX外部程序

1.如何不用将exe程序拷贝到UGII目录下运行？

答：在调用NX Open命令函数前，将当前目录移动到NX安装目录UGII\,NX安装目录必须和环境变量UGII_BASE_DIR的值一致，否则报错。可以使用如下代码：

Dim instalDir As String = Environment.GetEnvironmentVariable("UGII_BASE_DIR")
System.IO.Directory.SetCurrentDirectory(instalDir)

2.我的外部程序很小，不想打包NX的.NET库文件一起发布，而是使用用户的库文件，要怎样做呢？

答：第一步，显示项目所有文件，展开Application.myapp文件，再打开Application.Designer.vb文件，为MyApplication添加Startup事件回调函数，在里面添加如下代码：

Dim ufdir As String = Environment.GetEnvironmentVariable("UGII_BASE_DIR")
 Reflection.Assembly.LoadFrom(IO.Path.Combine(ufdir, "UGIImanagedNXOpen.dll"))
Reflection.Assembly.LoadFrom(IO.Path.Combine(ufdir, "UGIImanagedNXOpen.UF.dll"))
Reflection.Assembly.LoadFrom(IO.Path.Combine(ufdir, "UGIImanagedNXOpen.Utilities.dll"))

第二步，修改程序运行配置文件：你的exe程序文件名.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="NXOpen"  culture="neutral" publicKeyToken="null"/>
                <codeBase version="8.0.2.2" href="FILE://D:Program FilesSiemensNX 8.0UGIImanagedNXOpen.dll"/>
            </dependentAssembly>
            <dependentAssembly>
                <assemblyIdentity name="NXOpen.UF"  culture="neutral" publicKeyToken="null"/>
                <codeBase version="8.0.2.2" href="FILE://D:Program FilesSiemensNX 8.0UGIImanagedNXOpen.UF.dll"/>
            </dependentAssembly>
            <dependentAssembly>
                <assemblyIdentity name="NXOpen.Utilities"  culture="neutral" publicKeyToken="null"/>
                <codeBase version="4.0.0.0" href="FILE://D:Program FilesSiemensNX 8.0UGIImanagedNXOpen.Utilities.dll"/>
            </dependentAssembly>
        </assemblyBinding>
    </runtime>
</configuration>