//读取到这个节点 string file = System.Windows.Forms.Application.ExecutablePath; Configuration config = ConfigurationManager.OpenExeConfiguration(file); string comNumber = config.AppSettings.Settings["comNumber"].Value.ToString(); comboBox1.SelectedItem = comNumber; //设置这个节点方法1,亲测可行 string file = System.Windows.Forms.Application.ExecutablePath; Configuration config = ConfigurationManager.OpenExeConfiguration(file); bool exist = false;//记录这个com端口值是否存在 if (config.AppSettings.Settings["comNumber"] != null) { exist = true; } if (exist) { config.AppSettings.Settings.Remove("comNumber"); } config.AppSettings.Settings.Add("comNumber", comNO); config.Save(ConfigurationSaveMode.Modified); ConfigurationManager.RefreshSection("appSettings"); //方法2,因为上方法可行,这个并没有测试 //Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); //config.AppSettings.Settings. //config.AppSettings.Settings.Add("comNumber", comNO); //config.Save(ConfigurationSaveMode.Full); //ConfigurationManager.RefreshSection("appSettings");
导入的是一个System.Configuration的,
同样的connectionString也是差不多的,这里没有摘录,网上都是
时间: 2024-12-28 01:21:31