尝试导出 fastreport 报告时无法找到元数据文件“Microsoft.CSharp”错误

Question

尝试使用 fastreport 开源版本准备报告并将其导出为 pdf 使用 Microsoft Sql Server 数据库作为它的数据源 我的代码似乎连接到数据库并且能够填充数据源，所以很可能问题出在创建报告本身的代码中，但我不知道它可能发生在哪里

report.Prepare() 中出现异常； 和它后面的行

 using FastReport;
 using FastReport.Data;
 using FastReport.Export.Image;
 using FastReport.Export.PdfSimple;
 using FastReport.Format;
 using FastReport.Table;
 using FastReport.Utils;
 using System;
 using System.Configuration;
 using System.Data;
 using System.Data.SqlClient;
 using System.Drawing;
 using System.IO;
 using System.Windows;

 namespace KursovayaAvtoparkAvtobusov
 {
     /// <summary>
     /// Interaction logic for ReportExport.xaml
     /// </summary>
     public partial class ReportExport : Window
     {
         private static string outFolder = @"..\..\..\out\";
         private static string inFolder = @"..\..\..\in\";

         public ReportExport()
         {
             InitializeComponent();
         }

         private void SimpleRepExport_Click(object sender, RoutedEventArgs e)
         {

             Report report = new Report();
             DataSet ds = new DataSet();
             SqlConnection sqlConnection = new SqlConnection();
             sqlConnection.ConnectionString = ConfigurationManager.ConnectionStrings["KursovayaAvtoparkAvtobusov"].ToString();
             sqlConnection.Open();
             var select = "SELECT * FROM Employees; SELECT* FROM Maintenance; SELECT* FROM Marshuti; SELECT* FROM Prodazhi";
             var commandBuilder = new SqlCommand(select, sqlConnection);
             commandBuilder.ExecuteNonQuery();

             var adapter = new SqlDataAdapter(commandBuilder);
             adapter.TableMappings.Add("Table", "Employees");
             adapter.TableMappings.Add("Table1", "Maintenance");
             adapter.TableMappings.Add("Table2", "Marshuti");
             adapter.TableMappings.Add("Table3", "Prodazhi");
             adapter.Fill(ds);
             MessageBox.Show(ds.Tables[0].TableName);
             MessageBox.Show(ds.Tables[1].TableName);
             MessageBox.Show(ds.Tables[2].TableName);
             MessageBox.Show(ds.Tables[3].TableName);
             report.RegisterData(ds.Tables["Employees"], "Employees");
             // enable it to use in a report
             report.GetDataSource("Employees").Enabled = true;
             // create A4 page with all margins set to 1cm
             ReportPage page1 = new ReportPage();
             page1.Name = "Page1";
             report.Pages.Add(page1);
             // create a ReportTitle band
             page1.ReportTitle = new ReportTitleBand();
             page1.ReportTitle.Name = "ReportTitle1";
             // set its height to 1.5cm
             page1.ReportTitle.Height = Units.Centimeters * 1.5f;
             // create group header
             GroupHeaderBand group1 = new GroupHeaderBand();
             group1.Name = "GroupHeader1";
             group1.Height = Units.Centimeters * 1;
             // set group condition
             group1.Condition = "[Employees.Surname].Substring(0, 1)";
             // add group to the page.Bands collection
             page1.Bands.Add(group1);
             // create group footer
             group1.GroupFooter = new GroupFooterBand();
             group1.GroupFooter.Name = "GroupFooter1";
             group1.GroupFooter.Height = Units.Centimeters * 1;
             // create DataBand
             DataBand data1 = new DataBand();
             data1.Name = "Data1";
             data1.Height = Units.Centimeters * 0.5f;
             // set data source
             data1.DataSource = report.GetDataSource("Employees");
             // connect databand to a group
             group1.Data = data1;
             // create "Text" objects
             // report title
             TextObject text1 = new TextObject();
             text1.Name = "Text1";
             // set bounds
             text1.Bounds = new RectangleF(0, 0,
             Units.Centimeters * 19, Units.Centimeters * 1);
             // set text
             text1.Text = "Employees";
             // set appearance
             text1.HorzAlign = HorzAlign.Center;
             text1.Font = new Font("Tahoma", 14);
             // add it to ReportTitle
             page1.ReportTitle.Objects.Add(text1);
             // group
             TextObject text2 = new TextObject();
             text2.Name = "Text2";
             text2.Bounds = new RectangleF(0, 0,
             Units.Centimeters * 2, Units.Centimeters * 1);
             text2.Text = "[[Employees.Name].Substring(0, 1)]";
             text2.Font = new Font("Tahoma", 10);
             // add it to the GroupHeader
             group1.Objects.Add(text2);
             // data band
             TextObject text3 = new TextObject();
             text3.Name = "Text3";
             text3.Bounds = new RectangleF(0, 0,
             Units.Centimeters * 10, Units.Centimeters * 0.5f);
             text3.Text = "[Employees.Patronym]";
             text3.Font = new Font("Tahoma", 8);
             // add it to DataBand
             data1.Objects.Add(text3);
             report.Prepare();
             PDFSimpleExport pdf = new PDFSimpleExport();
             // Save the report 
             report.Export(pdf, "ExportedPDF.pdf");
         }
     }
 }

文件中的源代码

异常详情

FastReport.Utils.CompilerException
  HResult=0x80131500
  Message=(0,0): Error CS0006: Metadata file 'Microsoft.CSharp' could not be found

  Source=FastReport
  StackTrace:
   at FastReport.Code.AssemblyDescriptor.InternalCompile()
   at FastReport.Code.AssemblyDescriptor.Compile()
   at FastReport.Report.Prepare(Boolean append)
   at KursovayaAvtoparkAvtobusov.ReportExport.SimpleRepExport_Click(Object sender, RoutedEventArgs e) in C:\Users\AndreySavich\source\repos\KursovayaAvtoparkAvtobusov\KursovayaAvtoparkAvtobusov\ReportExport.xaml.cs:line 117
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.Controls.Primitives.ButtonBase.OnClick()
   at System.Windows.Controls.Button.OnClick()
   at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at KursovayaAvtoparkAvtobusov.App.Main()

预期的行为是导出到 pdf 文件报告，可以在 pdf 查看器中查看

Answer 1

我设法修复了它 基本上，该错误的原因是使用了错误类型的 sqlconnection 重新编写了代码 这个

 using FastReport;
 using FastReport.Data;
 using FastReport.Export.Image;
 using FastReport.Export.PdfSimple;
 using FastReport.Format;
 using FastReport.Table;
 using FastReport.Utils;
 using System;
 using System.Configuration;
 using System.Data;
 using System.Data.SqlClient;
 using System.Drawing;
 using System.IO;
 using System.Windows;

 namespace KursovayaAvtoparkAvtobusov
 {
     /// <summary>
     /// Interaction logic for ReportExport.xaml
     /// </summary>
     public partial class ReportExport : Window
     {
         private static string outFolder = @"..\..\..\out\";
         private static string inFolder = @"..\..\..\in\";

         public ReportExport()
         {
             InitializeComponent();
         }

         private void SimpleRepExport_Click(object sender, RoutedEventArgs e)
         {

             Report report = new Report();
             DataSet ds = new DataSet();
             SqlConnection sqlConnection = new SqlConnection();
             sqlConnection.ConnectionString = ConfigurationManager.ConnectionStrings["KursovayaAvtoparkAvtobusov"].ToString();
             sqlConnection.Open();
             var select = "SELECT * FROM Employees; SELECT* FROM Maintenance; SELECT* FROM Marshuti; SELECT* FROM Prodazhi";
             var commandBuilder = new SqlCommand(select, sqlConnection);
             commandBuilder.ExecuteNonQuery();

             var adapter = new SqlDataAdapter(commandBuilder);
             adapter.TableMappings.Add("Table", "Employees");
             adapter.TableMappings.Add("Table1", "Maintenance");
             adapter.TableMappings.Add("Table2", "Marshuti");
             adapter.TableMappings.Add("Table3", "Prodazhi");
             adapter.Fill(ds);
             MessageBox.Show(ds.Tables[0].TableName);
             MessageBox.Show(ds.Tables[1].TableName);
             MessageBox.Show(ds.Tables[2].TableName);
             MessageBox.Show(ds.Tables[3].TableName);
             report.RegisterData(ds.Tables["Employees"], "Employees");
             // enable it to use in a report
             report.GetDataSource("Employees").Enabled = true;
             // create A4 page with all margins set to 1cm
             ReportPage page1 = new ReportPage();
             page1.Name = "Page1";
             report.Pages.Add(page1);
             // create a ReportTitle band
             page1.ReportTitle = new ReportTitleBand();
             page1.ReportTitle.Name = "ReportTitle1";
             // set its height to 1.5cm
             page1.ReportTitle.Height = Units.Centimeters * 1.5f;
             // create group header
             GroupHeaderBand group1 = new GroupHeaderBand();
             group1.Name = "GroupHeader1";
             group1.Height = Units.Centimeters * 1;
             // set group condition
             group1.Condition = "[Employees.Surname].Substring(0, 1)";
             // add group to the page.Bands collection
             page1.Bands.Add(group1);
             // create group footer
             group1.GroupFooter = new GroupFooterBand();
             group1.GroupFooter.Name = "GroupFooter1";
             group1.GroupFooter.Height = Units.Centimeters * 1;
             // create DataBand
             DataBand data1 = new DataBand();
             data1.Name = "Data1";
             data1.Height = Units.Centimeters * 0.5f;
             // set data source
             data1.DataSource = report.GetDataSource("Employees");
             // connect databand to a group
             group1.Data = data1;
             // create "Text" objects
             // report title
             TextObject text1 = new TextObject();
             text1.Name = "Text1";
             // set bounds
             text1.Bounds = new RectangleF(0, 0,
             Units.Centimeters * 19, Units.Centimeters * 1);
             // set text
             text1.Text = "Employees";
             // set appearance
             text1.HorzAlign = HorzAlign.Center;
             text1.Font = new Font("Tahoma", 14);
             // add it to ReportTitle
             page1.ReportTitle.Objects.Add(text1);
             // group
             TextObject text2 = new TextObject();
             text2.Name = "Text2";
             text2.Bounds = new RectangleF(0, 0,
             Units.Centimeters * 2, Units.Centimeters * 1);
             text2.Text = "[[Employees.Name].Substring(0, 1)]";
             text2.Font = new Font("Tahoma", 10);
             // add it to the GroupHeader
             group1.Objects.Add(text2);
             // data band
             TextObject text3 = new TextObject();
             text3.Name = "Text3";
             text3.Bounds = new RectangleF(0, 0,
             Units.Centimeters * 10, Units.Centimeters * 0.5f);
             text3.Text = "[Employees.Patronym]";
             text3.Font = new Font("Tahoma", 8);
             // add it to DataBand
             data1.Objects.Add(text3);
             report.Prepare();
             PDFSimpleExport pdf = new PDFSimpleExport();
             // Save the report 
             report.Export(pdf, "ExportedPDF.pdf");
         }
     }
 }

到这里

using FastReport;
using FastReport.Data;

using FastReport.Export.Image;
using FastReport.Export.PdfSimple;
using FastReport.Format;
using FastReport.Table;
using FastReport.Utils;
using System;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.IO;
using System.Windows;

namespace KursovayaAvtoparkAvtobusov
{
    /// <summary>
    /// Interaction logic for ReportExport.xaml
    /// </summary>
    public partial class ReportExport : Window
    {
        private static string outFolder = @"..\..\..\out\";
        private static string inFolder = @"..\..\..\in\";

        public ReportExport()
        {
            InitializeComponent();
        }

        /*private void Fucttardmethod()
        {
            RegisteredObjects.AddConnection(typeof(MsSqlDataConnection));
            Report report = new Report();

            MsSqlDataConnection sqlConnection = new MsSqlDataConnection();
            sqlConnection.ConnectionString = ConfigurationManager.ConnectionStrings["KursovayaAvtoparkAvtobusov"].ToString();
            sqlConnection.CreateAllTables();
            report.Report.Dictionary.Connections.Add(sqlConnection);
            var select = "SELECT * FROM Employees; SELECT* FROM Maintenance; SELECT* FROM Marshuti; SELECT* FROM Prodazhi";

            report.GetDataSource("Employees").Enabled = true;
            report.GetDataSource("Maintenance").Enabled = true;
            report.GetDataSource("Marshuti").Enabled = true;
            report.GetDataSource("Prodazhi").Enabled = true;

            report.Prepare();
            PDFSimpleExport pdf = new PDFSimpleExport();
            // Save the report 
            report.Export(pdf, "ExportedPDF.pdf");
        }*/

        private void SimpleRepExport_Click(object sender, RoutedEventArgs e)
        {
            RegisteredObjects.AddConnection(typeof(MsSqlDataConnection));
            Report report = new Report();

            MsSqlDataConnection connection = new MsSqlDataConnection();
            connection.ConnectionString = ConfigurationManager.ConnectionStrings["KursovayaAvtoparkAvtobusov"].ToString();
            connection.CreateAllTables();
            report.Dictionary.Connections.Add(connection);
            report.RegisterData(connection.DataSet, "mssql");
            report.GetDataSource("Employees").Enabled = true;

            ReportPage page = new ReportPage();

            report.Pages.Add(page);
            page.CreateUniqueName();
            page.TopMargin = 10.0f;
            page.LeftMargin = 10.0f;
            page.RightMargin = 10.0f;
            page.BottomMargin = 10.0f;
            DataBand data = new DataBand();

            data.CreateUniqueName();
            page.AddChild(data);
            data.DataSource = report.GetDataSource("Employees"); //adding a table to a bend
            data.Height = Units.Centimeters * 5f;
            // Creating report title
            page.ReportTitle = new ReportTitleBand();
            page.ReportTitle.CreateUniqueName();
            page.ReportTitle.Height = 4.0f * Units.Centimeters;
            TextObject titleText = new TextObject();
            titleText.CreateUniqueName();
            titleText.Left = 1.0f * Units.Centimeters;
            titleText.Top = 1.0f * Units.Centimeters;
            titleText.Width = 17.0f * Units.Centimeters;
            titleText.Height = 2.0f * Units.Centimeters;
            titleText.HorzAlign = HorzAlign.Center;
            titleText.VertAlign = VertAlign.Center;
            titleText.Font = new Font("Times New Roman", 32.0f);
            titleText.TextColor = Color.Black;
            titleText.FillColor = Color.Wheat;
            titleText.Border.Color = Color.Black;
            titleText.Border.Lines = BorderLines.All;
            titleText.Border.Width = 4.0f;
            titleText.Text = "Avtopark Report";
            page.ReportTitle.Objects.Add(titleText);
            // Header object
            TextObject headerText = new TextObject();
            headerText.CreateUniqueName();
            headerText.Bounds = new RectangleF(0.0f, 2.7f * Units.Centimeters,
                19.0f * Units.Centimeters, 1.0f * Units.Centimeters);
            headerText.HorzAlign = HorzAlign.Center;
            headerText.VertAlign = VertAlign.Center;
            headerText.Font = new Font("Times New Roman", 16.0f);
            headerText.TextColor = Color.Black;
            headerText.FillColor = Color.Wheat;
            headerText.Border.Color = Color.Black;
            headerText.Border.Lines = BorderLines.All;
            headerText.Border.Width = 4.0f;
            headerText.Text = "Employees" + " Table";
            page.ReportTitle.Objects.Add(headerText);

            // Text bands
            TextObject bandText = new TextObject();
            bandText.CreateUniqueName();
            bandText.HorzAlign = HorzAlign.Center;
            bandText.Bounds = new RectangleF(0.0f * Units.Centimeters, 0.25f,
                1.0f * Units.Centimeters, 0.5f * Units.Centimeters);

            bandText.Border.Lines = BorderLines.All;

            bandText.Text = "[Employees.Num]";
            data.AddChild(bandText);
            TextObject text1 = new TextObject();
            text1.Parent = data;
            text1.CreateUniqueName();
            text1.Bounds = new RectangleF(1 * Units.Centimeters, 0, Units.Centimeters * 3, Units.Centimeters * 0.5f);

            text1.Text = "[Employees.Surname]"; //table and its field
            text1.Border.Lines = BorderLines.All;
            TextObject text2 = new TextObject();
            text2.Parent = data;
            text2.CreateUniqueName();
            text2.Bounds = new RectangleF(4 * Units.Centimeters, 0, Units.Centimeters * 20, Units.Centimeters * 0.5f);

            text2.Text = "[Employees.Name]"; //table and its field
            text2.Border.Lines = BorderLines.All;
            TextObject text3 = new TextObject();
            text3.Parent = data;
            text3.CreateUniqueName();
            text3.Bounds = new RectangleF(10 * Units.Centimeters, 0, Units.Centimeters * 15, Units.Centimeters * 0.5f);

            text3.Text = "[Employees.Patronym]"; //table and its field
            text3.Border.Lines = BorderLines.All;
            TextObject text4 = new TextObject();
            text4.Parent = data;
            text4.CreateUniqueName();
            text4.Bounds = new RectangleF(13 * Units.Centimeters, 0, Units.Centimeters * 5, Units.Centimeters * 0.5f);

            text4.Text = "[Employees.Employed_Since]"; //table and its field
            text4.Border.Lines = BorderLines.All;
            TextObject text5 = new TextObject();
            text5.Parent = data;
            text5.CreateUniqueName();
            text5.Bounds = new RectangleF(15 * Units.Centimeters, 0, Units.Centimeters * 5, Units.Centimeters * 0.5f);

            text5.Text = "[Employees.Job]"; //table and its field
            text5.Border.Lines = BorderLines.All;
            TextObject text6 = new TextObject();
            text6.Parent = data;
            text6.CreateUniqueName();
            text6.Bounds = new RectangleF(18 * Units.Centimeters, 0, Units.Centimeters * 5, Units.Centimeters * 0.5f);

            text6.Text = "[Employees.Internship]"; //table and its field
            text6.Border.Lines = BorderLines.All;
            // Footer
            page.PageFooter = new PageFooterBand();
            page.PageFooter.CreateUniqueName();
            page.PageFooter.Height = 0.5f * Units.Centimeters;

            TextObject footerText = new TextObject();
            footerText.CreateUniqueName();
            footerText.HorzAlign = HorzAlign.Right;
            footerText.VertAlign = VertAlign.Center;
            footerText.Bounds = new RectangleF(0.0f, 0.0f,
                19.0f * Units.Centimeters, 0.5f * Units.Centimeters);
            footerText.TextColor = Color.Black;
            footerText.FillColor = Color.Wheat;
            titleText.Border.Color = Color.Black;
            titleText.Border.Lines = BorderLines.All;
            titleText.Border.Width = 4.0f;
            footerText.Text = "Page [Page]";
            page.PageFooter.Objects.Add(footerText);
            // Exporting the report
            report.Prepare();

            PDFSimpleExport pdf = new PDFSimpleExport();
            // Save the report 
            report.Export(pdf, "ExportedPDF.pdf");
        }
    }
}