//DevExpress.XtraGrid.Views.Grid.GridView控件风格保存与还原
//关键函数：①SaveLayoutToXml (string xmlFile)；②RestoreLayoutFromXml (string xmlFile)

        /// <summary>
        /// 获取当前目录(该进程从中启动的目录)的完全限定目录
        /// </summary>
        private string m_BathPath = System.Environment.CurrentDirectory;
        
        //窗体加载事件：先保存原始风格，再加载自定义风格
        private void Form1_Load(object sender, EventArgs e)
        {
            this.SaveFormStyleXML(true);//保存原始风格
            this.LoadFormStyleXML(false);//加载自定义风格
        }

        //窗体关闭前事件：保存自定义风格
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            this.SaveFormStyleXML(false);//保存自定义风格
        }
        
        //Btn保存风格
        private void btnSaveStyle_Click(object sender, EventArgs e)
        {
            this.SaveFormStyleXML(false);//保存自定义风格
        }

        //Btn还原风格
        private void btnRestoreStyle_Click(object sender, EventArgs e)
        {
            this.LoadFormStyleXML(true);//加载原始风格
        }
        
        /// <summary>
        /// 保存界面风格
        /// </summary>
        private void SaveFormStyleXML(bool p_IsOriginal)
        {
            //XML文件保存目录
            string dirPath = m_BathPath + "\\config\\";
            //检查XML保存目录是否存在，若不存在则新建
            if (!System.IO.Directory.Exists(dirPath))
            {
                System.IO.Directory.CreateDirectory(dirPath);
            }
            //若为原始风格，需加前缀Original_
            if (p_IsOriginal)
            {
                dirPath += "Original_";
            }
            //保存GridView显示风格
            string fullPath = dirPath + "gdvStyle.xml";
            this.gridView1.SaveLayoutToXml(fullPath);
        }
        
        /// <summary>
        /// 加载界面风格
        /// </summary>
        private void LoadFormStyleXML(bool p_IsOriginal)
        {
            //XML文件保存目录
            string dirPath = m_BathPath + "\\config\\";
            //若为原始风格，需加前缀Original_
            if (p_IsOriginal)
            {
                dirPath += "Original_";
            }
            //加载GridView显示风格
            string fullPath = dirPath + "gdvStyle.xml";
            if (System.IO.File.Exists(path_QueryYY))
            {
                this.gridView1.RestoreLayoutFromXml(fullPath);
            }
        }