UG环境变量设置

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
//using Microsoft.Win32;


namespace WindowsFormsApplication16
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void comboBox1_MouseMove(object sender, MouseEventArgs e)
        {
            this.comboBox1.DroppedDown =true ;         
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string a = "simpl_chinese";
            string b = "English";

            if (this.comboBox1.SelectedItem.ToString() == "English")
            {
                Environment.SetEnvironmentVariable("UGII_LANG", "English",
                                    System.EnvironmentVariableTarget.Machine);   
            }
            else if (this.comboBox1.SelectedItem.ToString() == "简体中文")
            {
                Environment.SetEnvironmentVariable("UGII_LANG", "simpl_chinese",
                                   System.EnvironmentVariableTarget.Machine); 
            }
        }
    }
}