DevExpress的GridControl如何实现打印和打印预览

第一种方法：

System.Drawing.Printing.PageSettings set_print_page = new System.Drawing.Printing.PageSettings();
DevExpress.XtraPrinting.DynamicPrintHelper ph = new DevExpress.XtraPrinting.DynamicPrintHelper();
 if (ph.IsPrintingAvailable)
{
      ph.PageSettings = set_print_page;
      ph.PageSettings.Landscape = true; 
      ph.ShowPreview(this.gc, true);
}

第二种方法：

if (DevExpress.XtraPrinting.PrintHelper.IsPrintingAvailable)
{
    DataRowView drv = (DataRowView)BS_Roads.Current;
    PrintingSystem ps = new PrintingSystem();
    PrintableComponentLink link = new PrintableComponentLink(ps);
    link.Component = gc;
    link.Landscape = true;
    PageHeaderFooter phf = link.PageHeaderFooter as PageHeaderFooter;
    phf.Header.Content.Clear();
    phf.Header.Content.AddRange(new string[] { "", drv["线路名"].ToString() + "站点信息表", "" });
    phf.Header.Font = new System.Drawing.Font("宋体", 16, System.Drawing.FontStyle.Regular);
    phf.Header.LineAlignment = BrickAlignment.Center;
    phf.Footer.Content.Clear();
    phf.Footer.Content.AddRange(new string[] { "", String.Format("打印时间: {0:g}", DateTime.Now), "" });
    link.CreateDocument();
    link.ShowPreview();
}
else
{
    XtraMessageBox.Show("打印机不可用...", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}