我有一个rdlc报表，我为用户提供了在reportviewer中预览报表的选项，或在不预览的情况下打印报表。在reportviewer中，当从查看器进行打印时，用户可以选择要打印的页面范围。在没有查看器的情况下进行打印时，即使用户在打印对话框中选择了页面范围，也会打印整个报告。不使用reportviewer进行打印时，是否可以在打印对话框中选择要打印的页面范围？
在窗口表单中，我有一个带有单击事件的打印按钮：
private void button1_Click(object sender, EventArgs e)
{
var message = "Do you wish to preview the report before printing?";
var title = "Preview Report";
DialogResult dg = MessageBox.Show(message, title,
MessageBoxButtons.YesNo);
if (dg == DialogResult.Yes)
{
MainBatchListPreview mbp = new MainBatchListPreview();
mbp.Show();
}
else if (dg == DialogResult.No)
{
LocalReport report = new LocalReport();
report.ReportEmbeddedResource =
"Toolbar.Reports.MainBatchList.rdlc";
report.DataSources.Add(new ReportDataSource("DataSet1",
dataGridView1.DataSource));
report.PrintToPrinter();
}
}
然后，我使用以下Class在没有报表查看器的情况下进行打印：
namespace Toolbar
{
public static class PrintWithoutReportViewer
{
private static int m_CurrentPageIndex;
private static IList<Stream> m_Streams;
private static PageSettings m_PageSettings;
public static Stream CreateStream(string name, string fileNameExtension,
Encoding encoding, string mimeType, bool willSeek)
{
Stream stream = new MemoryStream();
m_Streams.Add(stream);
return stream;
}
public static void Export(LocalReport report, bool print = true)
{
PaperSize paperSize = m_PageSettings.PaperSize;
Margins margins = m_PageSettings.Margins;
// The device info string defines the page range to print as well as the size of the page.
// A start and end page of 0 means generate all pages.
string deviceInfo = string.Format(
CultureInfo.InvariantCulture,
"<DeviceInfo>" +
"<OutputFormat>EMF</OutputFormat>" +
"<PageWidth>{5}</PageWidth>" +
"<PageHeight>{4}</PageHeight>" +
"<MarginTop>{0}</MarginTop>" +
"<MarginLeft>{1}</MarginLeft>" +
"<MarginRight>{2}</MarginRight>" +
"<MarginBottom>{3}</MarginBottom>" +
"</DeviceInfo>",
ToInches(margins.Top),
ToInches(margins.Left),
ToInches(margins.Right),
ToInches(margins.Bottom),
ToInches(paperSize.Height),
ToInches(paperSize.Width));
Warning[] warnings;
m_Streams = new List<Stream>();
report.Render("Image", deviceInfo, CreateStream,
out warnings);
foreach (Stream stream in m_Streams)
stream.Position = 0;
if (print)
{
PrintDialog printDlg = new PrintDialog();
PrintDocument printDoc = new PrintDocument();
printDoc.DocumentName = "Report";
printDlg.Document = printDoc;
printDlg.AllowSelection = true;
printDlg.AllowSomePages = true;
//Call ShowDialog
if (printDlg.ShowDialog() == DialogResult.OK)
printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
m_CurrentPageIndex = 0;
printDoc.Print();
}
}
public static void RenderingCompleteEventHandler(object sender, RenderingCompleteEventArgs e)
{
PrintDialog startPrint = new PrintDialog();
startPrint.ShowDialog();
}
// Handler for PrintPageEvents
public static void PrintPage(object sender, PrintPageEventArgs e)
{
Stream pageToPrint = m_Streams[m_CurrentPageIndex];
pageToPrint.Position = 0;
// Load each page into a Metafile to draw it.
using (Metafile pageMetaFile = new Metafile(pageToPrint))
{
Rectangle adjustedRect = new Rectangle(
e.PageBounds.Left - (int)e.PageSettings.HardMarginX,
e.PageBounds.Top - (int)e.PageSettings.HardMarginY,
e.PageBounds.Width,
e.PageBounds.Height);
// Draw a white background for the report
e.Graphics.FillRectangle(Brushes.White, adjustedRect);
// Draw the report content
e.Graphics.DrawImage(pageMetaFile, adjustedRect);
// Prepare for next page. Make sure we haven't hit the end.
m_CurrentPageIndex++;
e.HasMorePages = m_CurrentPageIndex < m_Streams.Count;
}
}
public static void Print()
{
if (m_Streams == null || m_Streams.Count == 0)
throw new Exception("Error: no stream to print.");
PrintDocument printDoc = new PrintDocument();
if (!printDoc.PrinterSettings.IsValid)
{
throw new Exception("Error: cannot find the default printer.");
}
else
{
printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
m_CurrentPageIndex = 0;
printDoc.Print();
}
}
public static void PrintToPrinter(this LocalReport report)
{
m_PageSettings = new PageSettings();
ReportPageSettings reportPageSettings = report.GetDefaultPageSettings();
m_PageSettings.PaperSize = reportPageSettings.PaperSize;
m_PageSettings.Margins = reportPageSettings.Margins;
Export(report);
}
public static void DisposePrint()
{
if (m_Streams != null)
{
foreach (Stream stream in m_Streams)
stream.Close();
m_Streams = null;
}
}
private static string ToInches(int hundrethsOfInch)
{
double inches = hundrethsOfInch / 100.0;
return inches.ToString(CultureInfo.InvariantCulture) + "in";
}
}
}
答案 0 :(得分：0)
我终于通过大量研究和反复试验解决了我的问题。我添加/更改了以下内容，该内容允许“所有页面和选定页面范围”。
我在课程开始时添加了m_EndPage。
private static int m_EndPage;
在“公共静态void Export（）”中
if (result == DialogResult.OK)
{
printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
m_CurrentPageIndex = 0;
page = printDoc.PrinterSettings.FromPage-1;
m_EndPage = printDoc.PrinterSettings.ToPage - 1;
m_CurrentPageIndex = page;
printDoc.Print();
}
我在下面添加了if语句。
public static void PrintPage(object sender, PrintPageEventArgs e)
{
Stream pageToPrint = m_Streams[m_CurrentPageIndex];
pageToPrint.Position = 0;
// Load each page into a Metafile to draw it.
using (Metafile pageMetaFile = new Metafile(pageToPrint))
{
Rectangle adjustedRect = new Rectangle(
e.PageBounds.Left - (int)e.PageSettings.HardMarginX,
e.PageBounds.Top - (int)e.PageSettings.HardMarginY,
e.PageBounds.Width,
e.PageBounds.Height);
// Draw a white background for the report
e.Graphics.FillRectangle(Brushes.White, adjustedRect);
// Draw the report content
e.Graphics.DrawImage(pageMetaFile, adjustedRect);
// Prepare for next page. Make sure we haven't hit the end.
m_CurrentPageIndex++;
e.HasMorePages = m_CurrentPageIndex < m_Streams.Count;
if (m_CurrentPageIndex > m_EndPage) e.HasMorePages = false;
}