实现报表自定义打印功能
1、首先，创建一个商品清单报表，该报表运行之后有两页内容，第二页数据没有占满整张纸，我们希望在显示时就不显示空白区域，如下样式：
2、首先，在报表的ReportEnd事件中动态设置最后一页的纸张高度。基本思路是记录每页中数据占用的实际高度，在ReportEnd事件中设置最后一页的高度：
// 记录当前页实际高度
public float ActualPageHeight = 0;
private void SectionReport1_ReportEnd(object sender, EventArgs e)
{
// 在报表运行结束之后调整最后一页的高度
ActualPageHeight = ActualPageHeight
+ this.PageSettings.Margins.Top
+ this.PageSettings.Margins.Bottom
+ this.pageHeader.Height;
this.Document.Pages[this.Document.Pages.Count - 1].Height = ActualPageHeight;
}
private void detail_AfterPrint(object sender, EventArgs e)
{
// 记录每条数据占用的高度
ActualPageHeight += this.detail.Height;
}
private void SectionReport1_PageStart(object sender, EventArgs e)
{
// 每页开始时对实际高度做清零操作
ActualPageHeight = 0;
}
3、然后，我们实现连续打印操作，在打印时需要将报表内容分为两部分进行打印，代码如下：
private void 连续打印ToolStripMenuItem_Click(object sender, EventArgs e)
{
// 连续打印报表
GrapeCity.ActiveReports.Document.Section.Page aPage = new GrapeCity.ActiveReports.Document.Section.Page();
aPage.Width = rpt.PageSettings.PaperWidth;
aPage.Height = rpt.PageSettings.PaperHeight;
// 创建SystemPrinter对象
GrapeCity.ActiveReports.SystemPrinter m_myARPrinter = new GrapeCity.ActiveReports.SystemPrinter();
m_myARPrinter.PrintDialog();
m_myARPrinter.PaperSize = new System.Drawing.Printing.PaperSize("Custom Size", Convert.ToInt32(aPage.Width * 100), Convert.ToInt32(aPage.Height * 100));
// 启动打印任务
m_myARPrinter.StartJob("连续打印");
System.Drawing.RectangleF rec;
int nCount = rpt.Document.Pages.Count;
for (int i = 0; i < nCount - 1; i++)
{
m_myARPrinter.StartPage();
m_myARPrinter.Graphics.PageUnit = GraphicsUnit.Pixel;
aPage = rpt.Document.Pages[i];
m_myARPrinter.PaperSize = new System.Drawing.Printing.PaperSize("Custom Size", Convert.ToInt32(aPage.Width * 100), Convert.ToInt32(aPage.Height * 100));
rec = new RectangleF(0, 0, aPage.Width, aPage.Height);
aPage.Draw(m_myARPrinter.Graphics, rec, 1f, 1f);
m_myARPrinter.EndPage();
}
m_myARPrinter.EndJob();
aPage = rpt.Document.Pages[nCount - 1];
m_myARPrinter.PaperSize = new System.Drawing.Printing.PaperSize("Custom Size", Convert.ToInt32(aPage.Width * 100), Convert.ToInt32(aPage.Height * 100));
m_myARPrinter.StartJob("连续打印");
m_myARPrinter.StartPage();
m_myARPrinter.Graphics.PageUnit = GraphicsUnit.Pixel;
rec = new RectangleF(0, 0, aPage.Width, aPage.Height);
aPage.Draw(m_myARPrinter.Graphics, rec, 1f, 1f);
m_myARPrinter.EndPage();
m_myARPrinter.EndJob();
}
4、运行效果
