I found the information on a blog. Your documentation needs to be more thorough and should require an additional link to a blog. I am now getting an error I need your insight to resolve. I cannot attach an .xlsx file to this forum so you need to give me some tools to get you the file that errors.
I use this code to import from a file:
Microsoft.Win32.SaveFileDialog dlg = newMicrosoft.Win32.SaveFileDialog();dlg.DefaultExt = ".xlsx";dlg.Filter = "Excel | *.xlsx";dlg.Title = "Identify Location";dlg.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop); dlg.CheckFileExists = false;dlg.CheckPathExists = true;dlg.FilterIndex = 2;dlg.RestoreDirectory = true; bool? dlgRst = dlg.ShowDialog();if(dlgRst == true){ FileInfo file = newFileInfo(dlg.FileName); XlsxFormatProvider provider = newXlsxFormatProvider(); using(Stream stream = newFileStream(file.FullName, FileMode.CreateNew, FileAccess.Write)) { provider.Export(reportExcelControl.Workbook, stream); }}
However, the import action corrupts the file... it can no longer be opened in Excel and its size changes to 0:
Telerik.Windows.Zip.InvalidDataException: Archive corrupted ---> System.IO.IOException: An attempt was made to move the file pointer before the beginning of the file. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.SeekCore(Int64 offset, SeekOrigin origin) at System.IO.FileStream.Seek(Int64 offset, SeekOrigin origin) at Telerik.Windows.Zip.ZipArchive.ReadEndOfCentralDirectory() --- End of inner exception stack trace --- at Telerik.Windows.Zip.ZipArchive.ReadEndOfCentralDirectory() at Telerik.Windows.Zip.ZipArchive.Init(Stream stream, ZipArchiveMode mode, Boolean leaveOpen) at Telerik.Windows.Zip.ZipArchive..ctor(Stream stream, ZipArchiveMode mode, Boolean leaveOpen, Encoding entryNameEncoding, CompressionSettings compressionSettings, EncryptionSettings encryptionSettings) at Telerik.Windows.Documents.FormatProviders.OpenXml.OpenXmlImporter`1.Import(Stream input, IOpenXmlImportContext context) at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.XlsxFormatProvider.ImportOverride(Stream input) at Telerik.Windows.Documents.Spreadsheet.FormatProviders.WorkbookFormatProviderBase.Import(Stream input) at Hpt.Product.Measurement.UC.MeasurementReportUC.btnImportFromFile_Click(Object sender, RoutedEventArgs e) in C:\HPT\Measurements\HPT.Product.Measurement.UC\MeasurementReportUC.xaml.cs:line 219
System.IO.IOException: An attempt was made to move the file pointer before the beginning of the file. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.SeekCore(Int64 offset, SeekOrigin origin) at System.IO.FileStream.Seek(Int64 offset, SeekOrigin origin) at Telerik.Windows.Zip.ZipArchive.ReadEndOfCentralDirectory()
Thanks in advance for your help,
Joel