C# DevExpress 自定义打印(设置横向打印为例)。

//打印
private void btnPrint_Click(object sender, EventArgs e)
{
PrintPreview(this.gridControl1);
}

//自定义打印
private void PrintPreview(DevExpress.XtraPrinting.IPrintable gridControlPrint)
{
DevExpress.XtraPrintingLinks.CompositeLink compositeLink = new DevExpress.XtraPrintingLinks.CompositeLink();
DevExpress.XtraPrinting.PrintingSystem ps = new DevExpress.XtraPrinting.PrintingSystem();

compositeLink.PrintingSystem = ps;
compositeLink.Landscape = true;
compositeLink.PaperKind = System.Drawing.Printing.PaperKind.A4;
DevExpress.XtraPrinting.PrintableComponentLink link = new DevExpress.XtraPrinting.PrintableComponentLink(ps);

ps.PageSettings.Landscape = true;
link.Component = gridControlPrint;
compositeLink.Links.Add(link);

link.CreateDocument(); //建立文档
ps.PreviewFormEx.Show();//进行预览

}