C# Visual studio 2015 community report viewer版本12使用c获取额外边距时出错#

我正在使用Visual studio 2015 community report viewer版本12在我的c#项目中显示rdlc报告。 这是一份普通的A4纸报告

它适用于客户端PC上的windows xp、vista和win 7，但当相同的应用程序安装在64位windows 10上时，我将面临如下问题

正如你们在上图中看到的那个样，不必要的边距来自右边和底端，字体大小也减小了。但当我将报告导出到PDF时，生成的PDF和我设计的报告一样，并没有问题

我尝试了什么：

我从安装MICROSOFT®REPORT VIEWER 2015运行时

已安装Microsoft®SQL Server®2014功能包（SQL的系统CLR类型 服务器（2014）

尝试使用以下代码将RDLC直接导出到打印机

打印类代码

public static class _cWainfoPrintReport
    {
        private static int m_currentPageIndex;
        private static IList<Stream> m_streams;
        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 _mExport(LocalReport report, bool print = true, double _pageWightInches = 8.27, double _pageHeightInches = 11.69, double _MarginTopInches = 0.025, double _MarginLeftInches = 0.025, double _MarginRightInches = 0.025, double _MarginBottomInches = 0.025)
        {
            string deviceInfo =
            @"<DeviceInfo> <OutputFormat>EMF</OutputFormat> <PageWidth>" + _pageWightInches + "in</PageWidth> <PageHeight>" + _pageHeightInches + "in</PageHeight> <MarginTop>" + _MarginTopInches + "in</MarginTop> <MarginLeft>" + _MarginLeftInches + "in</MarginLeft> <MarginRight>" + _MarginRightInches + "in</MarginRight> <MarginBottom>" + _MarginBottomInches + "in</MarginBottom> </DeviceInfo>";
            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)
            {
                _mPrint(_pageWightInches, _pageHeightInches, _MarginTopInches, _MarginLeftInches, _MarginRightInches, _MarginBottomInches);
            }
            report.ReleaseSandboxAppDomain();
        }
        // Handler for PrintPageEvents
        public static void _mPrintPage(object sender, PrintPageEventArgs ev)
        {
            Metafile pageImage = new
            Metafile(m_streams[m_currentPageIndex]);
            // Adjust rectangular area with printer margins.
            Rectangle adjustedRect = new Rectangle(
            ev.PageBounds.Left - (int)ev.PageSettings.HardMarginX,
            ev.PageBounds.Top - (int)ev.PageSettings.HardMarginY,
            ev.PageBounds.Width,
            ev.PageBounds.Height);
            // Draw a white background for the report
            ev.Graphics.FillRectangle(Brushes.White, adjustedRect);
            // Draw the report content
            ev.Graphics.DrawImage(pageImage, adjustedRect);
            // Prepare for the next page. Make sure we haven't hit the end.
            m_currentPageIndex++;
            ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
        }
        public static PaperSize CalculatePaperSize(double WidthInCentimeters, double HeightInCentimetres)
        {
            int Width = int.Parse((Math.Round((WidthInCentimeters * 0.393701) * 100, 0, MidpointRounding.AwayFromZero)).ToString());
            int Height = int.Parse((Math.Round((HeightInCentimetres * 0.393701) * 100, 0, MidpointRounding.AwayFromZero)).ToString());

            PaperSize NewSize = new PaperSize();
            NewSize.RawKind = (int)PaperKind.Custom;
            NewSize.Width = Width;
            NewSize.Height = Height;
            NewSize.PaperName = "Letter";

            return NewSize;

        }
        public static void _mPrint(double _pageWightInches = 8.27, double _pageHeightInches = 11.69, double _MarginTopInches = 0.025, double _MarginLeftInches = 0.025, double _MarginRightInches = 0.025, double _MarginBottomInches = 0.025)
        {
            if (m_streams == null || m_streams.Count == 0)
                throw new Exception("Error: no stream to print.");
            PrintDocument printDoc = new PrintDocument();

            PaperSize RequiredPaperSize = CalculatePaperSize(_pageWightInches * 2.54, _pageHeightInches * 2.54);
            bool FoundMatchingPaperSize = false;
            for (int index = 0; index < printDoc.PrinterSettings.PaperSizes.Count; index++)
            {
                if (printDoc.PrinterSettings.PaperSizes[index].Height == RequiredPaperSize.Height && printDoc.PrinterSettings.PaperSizes[index].Width == RequiredPaperSize.Width)
                {
                    printDoc.PrinterSettings.DefaultPageSettings.PaperSize = printDoc.PrinterSettings.PaperSizes[index];
                    printDoc.DefaultPageSettings.PaperSize = printDoc.PrinterSettings.PaperSizes[index];
                    FoundMatchingPaperSize = true;
                    break;
                }
            }


            if (!printDoc.PrinterSettings.IsValid)
            {
                throw new Exception("Error: cannot find the default printer.");
            }
            else
            {

                printDoc.PrintPage += new PrintPageEventHandler(_mPrintPage);
                m_currentPageIndex = 0;
                printDoc.Print();
            }
        }
        public static void _mPrintToPrinter(this LocalReport report)
        {
            _mExport(report);
        }
        public static void _mDisposePrint()
        {
            if (m_streams != null)
            {
                foreach (Stream stream in m_streams)
                    stream.Close();
                m_streams = null;
            }
        }
    }

但它也和上面描述的一样

同一应用程序正在我的带有Windows 10 64位的电脑上运行，但在带有Windows 10 64位的客户端电脑上部署后无法工作

在客户端PC.Net 4.0框架上，安装了SQL Server 2008、Windows 10 64位

---

如何解决此问题。

我认为此问题与安装的任何工具无关，尤其是与Windows 10 64位无关

相反，正如jdweng&Reza Aghaei所提到的，这是一个与新闻部有关的问题。更具体地说，高DPI设备

不确定您是否注意到，但您上载的两个图像的像素不同，并且像素较低的图像显示报告的正确呈现。这可以说支持了由于高DPI导致的缩放问题

现在，这方面有很多文章、帖子和问题。但在微软支持门户网站上，似乎几乎没有为这种行为提供可能的解决方案（是的，复数形式）和解决办法（再次，复数形式）

你可以在这里找到这篇文章：

我相信，我在下面引用的解决方法暂时应该对您有所帮助

更改应用程序属性

public static class _cWainfoPrintReport
    {
        private static int m_currentPageIndex;
        private static IList<Stream> m_streams;
        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 _mExport(LocalReport report, bool print = true, double _pageWightInches = 8.27, double _pageHeightInches = 11.69, double _MarginTopInches = 0.025, double _MarginLeftInches = 0.025, double _MarginRightInches = 0.025, double _MarginBottomInches = 0.025)
        {
            string deviceInfo =
            @"<DeviceInfo> <OutputFormat>EMF</OutputFormat> <PageWidth>" + _pageWightInches + "in</PageWidth> <PageHeight>" + _pageHeightInches + "in</PageHeight> <MarginTop>" + _MarginTopInches + "in</MarginTop> <MarginLeft>" + _MarginLeftInches + "in</MarginLeft> <MarginRight>" + _MarginRightInches + "in</MarginRight> <MarginBottom>" + _MarginBottomInches + "in</MarginBottom> </DeviceInfo>";
            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)
            {
                _mPrint(_pageWightInches, _pageHeightInches, _MarginTopInches, _MarginLeftInches, _MarginRightInches, _MarginBottomInches);
            }
            report.ReleaseSandboxAppDomain();
        }
        // Handler for PrintPageEvents
        public static void _mPrintPage(object sender, PrintPageEventArgs ev)
        {
            Metafile pageImage = new
            Metafile(m_streams[m_currentPageIndex]);
            // Adjust rectangular area with printer margins.
            Rectangle adjustedRect = new Rectangle(
            ev.PageBounds.Left - (int)ev.PageSettings.HardMarginX,
            ev.PageBounds.Top - (int)ev.PageSettings.HardMarginY,
            ev.PageBounds.Width,
            ev.PageBounds.Height);
            // Draw a white background for the report
            ev.Graphics.FillRectangle(Brushes.White, adjustedRect);
            // Draw the report content
            ev.Graphics.DrawImage(pageImage, adjustedRect);
            // Prepare for the next page. Make sure we haven't hit the end.
            m_currentPageIndex++;
            ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
        }
        public static PaperSize CalculatePaperSize(double WidthInCentimeters, double HeightInCentimetres)
        {
            int Width = int.Parse((Math.Round((WidthInCentimeters * 0.393701) * 100, 0, MidpointRounding.AwayFromZero)).ToString());
            int Height = int.Parse((Math.Round((HeightInCentimetres * 0.393701) * 100, 0, MidpointRounding.AwayFromZero)).ToString());

            PaperSize NewSize = new PaperSize();
            NewSize.RawKind = (int)PaperKind.Custom;
            NewSize.Width = Width;
            NewSize.Height = Height;
            NewSize.PaperName = "Letter";

            return NewSize;

        }
        public static void _mPrint(double _pageWightInches = 8.27, double _pageHeightInches = 11.69, double _MarginTopInches = 0.025, double _MarginLeftInches = 0.025, double _MarginRightInches = 0.025, double _MarginBottomInches = 0.025)
        {
            if (m_streams == null || m_streams.Count == 0)
                throw new Exception("Error: no stream to print.");
            PrintDocument printDoc = new PrintDocument();

            PaperSize RequiredPaperSize = CalculatePaperSize(_pageWightInches * 2.54, _pageHeightInches * 2.54);
            bool FoundMatchingPaperSize = false;
            for (int index = 0; index < printDoc.PrinterSettings.PaperSizes.Count; index++)
            {
                if (printDoc.PrinterSettings.PaperSizes[index].Height == RequiredPaperSize.Height && printDoc.PrinterSettings.PaperSizes[index].Width == RequiredPaperSize.Width)
                {
                    printDoc.PrinterSettings.DefaultPageSettings.PaperSize = printDoc.PrinterSettings.PaperSizes[index];
                    printDoc.DefaultPageSettings.PaperSize = printDoc.PrinterSettings.PaperSizes[index];
                    FoundMatchingPaperSize = true;
                    break;
                }
            }


            if (!printDoc.PrinterSettings.IsValid)
            {
                throw new Exception("Error: cannot find the default printer.");
            }
            else
            {

                printDoc.PrintPage += new PrintPageEventHandler(_mPrintPage);
                m_currentPageIndex = 0;
                printDoc.Print();
            }
        }
        public static void _mPrintToPrinter(this LocalReport report)
        {
            _mExport(report);
        }
        public static void _mDisposePrint()
        {
            if (m_streams != null)
            {
                foreach (Stream stream in m_streams)
                    stream.Close();
                m_streams = null;
            }
        }
    }

在资源管理器中或“开始”菜单上，右键单击应用程序名称，选择“属性”，选择“兼容性”选项卡，然后选中“禁用高DPI设置时的显示缩放”复选框

注意： 在Windows 10版本1703和更高版本的Windows中，禁用高DPI设置上的显示缩放选项的文本将更改为覆盖高DPI缩放行为，缩放由：应用程序执行

---

您应该禁用DPI Unaware并将应用程序设置为DPI aware（即使不是），以防止扩展

在较新版本的Windows 10上，我发现了一种不同的解决方案：您可以让应用程序处于任何DPI感知状态，但可以让特定的窗口在不同的DPI感知状态下打开

不幸的是，尽管如此，我仍然在寻找一个100%都能工作的州，但有两种选择似乎是很好的选择

改变新闻部意识

            if (WindowsVersion.WindowsIs10_1809OrNewer) // this you can get yourself, need to look at build number
            {
                // https://github.com/microsoft/Windows-classic-samples/blob/master/Samples/DPIAwarenessPerWindow/client/DpiAwarenessContext.cpp
                _prevHosting = WinAPI.SetThreadDpiHostingBehavior((IntPtr)WinAPI.DPI_HOSTING_BEHAVIOR.BEHAVIOR_MIXED);

                _prevDPIContext = WinAPI.SetThreadDpiAwarenessContext((IntPtr)win10DPIAwareness); // WinAPI.ContextDPIAwareness.Context_UnawareGdiScaled);
            }

然后您可以在此线程中打开新对话框，该对话框将包含ReportViewer

以后再换

                    if (WindowsVersion.WindowsIs10_1809OrNewer)
                    {
                        WinAPI.SetThreadDpiAwarenessContext(_prevDPIContext);
                        WinAPI.SetThreadDpiHostingBehavior(_prevHosting);
                    }

助手

    public static bool WindowsIs10_1809OrNewer
    {
        get { return WindowsIs10OrNewer && Environment.OSVersion.Version.Build >= 17763; }
    }

    public static bool WindowsIs10OrNewer
    {
        get { return Environment.OSVersion.Version >= new Version(10, 0); }
    }

    public enum DPI_HOSTING_BEHAVIOR
    {
        BEHAVIOR_INVALID = -1,
        BEHAVIOR_DEFAULT = 0,
        BEHAVIOR_MIXED = 1
    }

    public enum ContextDPIAwareness
    {
        Context_Unaware = -1,
        Context_SystemAware = -2,
        Context_PerMonitorAware = -3,
        Context_PerMonitorAwareV2 = -4,
        Context_UnawareGdiScaled = -5,
    }

您可以尝试经常使用Context_UnawareGdiScaled（实际上可以正确缩放ReportViewer）或Context_PerMonitorAware来禁用缩放

我在RDP会话中遇到了一些问题，如果您没有这些问题，可能您对这些选项没有意见

此外，不幸的是，这只适用于较新的Windows10版本。由于这些更新不是可选的，可能大多数Windows 10用户将使用新版本，并且Windows 8不受欢迎，而所有其他Windows版本都不受支持，因此许多用户应该使用最新的Windows 10版本

当然，这还远远不够完美

---

顺便说一句，对于旧版本的Windows，我只是通过SetProcessdPiaware禁用了缩放功能，没有找到更好的方法。

看起来是打印驱动程序导致了这个问题。我怀疑打印机有两个驱动程序，一个是PCL，一个是PS（Post脚本），使用了错误的驱动程序。@jdweng可能与打印驱动程序无关，它导致所有安装了64位windows 10的客户端PC，我的笔记本电脑（开发PC）也安装了64位Windows 10，但我没有面临这个问题。有趣的帖子：看起来微软解决了一个问题，破坏了很多用户应用程序：我读了很多书。看来这与“新闻部意识”有关。最好的文章出现在以下网页：@ImranAliKhan，我的荣幸！：）