配置文件操作方法
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Configuration windowsConfig = ConfigurationManager.OpenExeConfiguration(Path.Combine(Application.StartupPath, "WindowsFormsHost.exe"));
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windowsConfig.AppSettings.Settings["ConnectionString"].Value = desCheck.Checked ? DESEncrypt.Encrypt(connText.Text) : connText.Text ;
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windowsConfig.AppSettings.Settings["ConStringEncrypt"].Value = desCheck.Checked.ToString();
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windowsConfig.Save();
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Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
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config.AppSettings.Settings["ConnectionString"].Value = desCheck.Checked ? DESEncrypt.Encrypt(connText.Text) : connText.Text;
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config.AppSettings.Settings["ConStringEncrypt"].Value = desCheck.Checked.ToString();
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config.Save();
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