/// <summary>
    /// 窗体基类接口
    /// </summary>
    public interface IFormBase
    {
        /// <summary>
        /// 设置窗体皮肤
        /// </summary>
        void LoadSkin();

        /// <summary>
        /// 设置窗体皮肤
        /// </summary>
        /// <param name="skinName">名称</param>
        void SetSkin(string skinName);
    }

public partial class frmBase : XtraForm, IFormBase, ISettingsChanged
    {
        public frmBase()
        {
            InitializeComponent();
        }

 #region IFormBase 成員

        /// <summary>
        /// 加载皮肤
        /// </summary>
        public void LoadSkin()
        {
            DevExpress.LookAndFeel.UserLookAndFeel.Default.SetSkinStyle(UserConfig.Current.SkinName);//设置主题样式
        }

        /// <summary>
        /// 设置窗体皮肤
        /// </summary>
        /// <param name="skinName">名称</param>
        public virtual void SetSkin(string skinName)
        {
            DevExpress.LookAndFeel.UserLookAndFeel.Default.SetSkinStyle(skinName);//设置主题样式
        }

        #endregion
}

       private void skinRibbonGallery_GalleryItemClick(object sender, GalleryItemClickEventArgs e)
        {
            string skin = e.Item.Tag.ToString();

            //所有软件界面全局换皮肤功能
            this.SetSkin(skin);
        }

        public override void SetSkin(string skinName)
        {
            //设置主题样式
            DevExpress.LookAndFeel.UserLookAndFeel.Default.SetSkinStyle(skinName);

            //保存DevExpress皮肤名称
            UserConfig.Current.SkinName = skinName;
            UserConfig.Save();
        }