/// <summary> 刷新节点内容的尺寸
        ///
        /// </summary>
        public override void RefreshContentSize()
        {
            Title_Label.Font    = FolderTitle_Font.ByScaling(CurrentScaling);    //按照比例缩放
            Title_Label.Padding = FolderTitle_Padding.ByScaling(CurrentScaling); //按照比例缩放
            Title_panel.Width   = Title_Label.Width;
            this.Height         = Title_Label.Height;

            File_Panel.Visible = IsFiles; //该文件夹下是否有文件
            int widthCount = 0;           //文件图标所占的宽度

            if (IsFiles)                  //如果有文件就计算文件图标所占的宽度
            {
                foreach (Control ImgItem in File_Panel.Controls)
                {
                    ImgItem.Size = new Size(Title_Label.Height, Title_Label.Height);
                    widthCount  += ImgItem.Margin.Left;
                    widthCount  += ImgItem.Margin.Right;
                    widthCount  += ImgItem.Width;
                }
            }
            this.Width = widthCount + Title_panel.Width;
        }