DevExpress Winform 通用控件打印方法，包括gridcontrol,treelist,pivotGridControl,ChartControl,LayoutControl...（所有支持打印功能的控件，即只要控件类型有实现Iprinttable接口） ,同时允许用户自定义报表标题，报表纸张类型（A4，A3...）,报表边距
 

/// <summary>
        /// 打印功能
        /// </summary>
        /// <param name="panel">打印控件</param>
        /// <param name="title">标题</param>
        /// <param name="pageSize">纸张类型</param>
        /// <param name="margins">边距</param>
        public static void Print(IPrintable panel, string title = null, PaperKind pageSize = PaperKind.A4, System.Drawing.Printing.Margins margins = null)
        {
            PrintingSystem ps = new PrintingSystem();
            CompositeLink link = new CompositeLink(ps);                       PrintableComponentLink printableLink = new PrintableComponentLink() { Component = panel };
            ps.Links.Add(link);
            link.Links.Add(printableLink);
            link.Landscape = true;//横向
            link.PaperKind = pageSize;//设置纸张大小
            if (margins == null)
                margins = new System.Drawing.Printing.Margins(10, 10, 50, 50);
            link.Margins = margins;
            //判断是否有标题，有则设置
            if (!string.IsNullOrEmpty(title))
            {
 
                PageHeaderFooter phf = link.PageHeaderFooter as PageHeaderFooter;
                phf.Header.Content.Clear();
                phf.Header.Content.AddRange(new string[] { "", title, "" });
                phf.Header.Font = new System.Drawing.Font("宋体", 14, System.Drawing.FontStyle.Bold);
                phf.Header.LineAlignment = BrickAlignment.Center;
 
                phf.Footer.Content.AddRange(new string[] { "", String.Format("打印时间: {0:g}", DateTime.Now), "" });
            }
            link.CreateDocument(); //建立文档
            ps.PreviewRibbonFormEx.Show();//进行预览 
        }