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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
///
/// 打印功能
///
/// 打印控件
/// 标题
/// 纸张类型
/// 边距
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
}
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