How to unfreeze the rows and columns in XlsIO?

24 Jan 20234 minutes to read

You can unfreeze rows and columns in XlsIO by using the RemovePanes method. The following code snippet illustrates this.

using (ExcelEngine excelEngine = new ExcelEngine())
{
  IApplication application = excelEngine.Excel;
  application.DefaultVersion = ExcelVersion.Excel2013;
  IWorkbook workbook = application.Workbooks.Open("Sample.xlsx", ExcelOpenType.Automatic);
  IWorksheet worksheet = workbook.Worksheets[0];

  //Freeze the panes
  worksheet.Range[8, 1].FreezePanes();

  //Unfreeze the panes
  worksheet.RemovePanes();

  workbook.SaveAs("Unfreeze.xlsx");
}
Using excelEngine As ExcelEngine = New ExcelEngine()
  Dim application As IApplication = excelEngine.Excel
  application.DefaultVersion = ExcelVersion.Excel2013
  Dim workbook As IWorkbook = application.Workbooks.Open("Sample.xlsx", ExcelOpenType.Automatic)
  Dim worksheet As IWorksheet = workbook.Worksheets(0)

  'Freeze the panes
  worksheet.Range(8, 1).FreezePanes()

  'Unfreeze the panes
  worksheet.RemovePanes()

  workbook.SaveAs("Unfreeze.xlsx")
End Using
using (ExcelEngine excelEngine = new ExcelEngine())
{
  IApplication application = excelEngine.Excel;
  Stream inputStream = new FileStream("Sample.xlsx", FileMode.Open, FileAccess.Read);
  IWorkbook workbook = await application.Workbooks.OpenAsync(inputStream, ExcelOpenType.Automatic);
  IWorksheet worksheet = workbook.Worksheets[0];

  //Freeze the panes
  worksheet.Range[8, 1].FreezePanes();

  //Unfreeze the panes
  worksheet.RemovePanes();

  //Initializes FileSavePicker
  FileSavePicker savePicker = new FileSavePicker();
  savePicker.SuggestedStartLocation = PickerLocationId.Desktop;
  savePicker.SuggestedFileName = "Unfreeze";
  savePicker.FileTypeChoices.Add("Excel Files", new List<string>() { ".xlsx" });

  //Creates a storage file from FileSavePicker
  StorageFile storageFile = await savePicker.PickSaveFileAsync();

  //Saves changes to the specified storage file
  await workbook.SaveAsAsync(storageFile);
}
using (ExcelEngine excelEngine = new ExcelEngine())
{
  IApplication application = excelEngine.Excel;
  FileStream inputStream = new FileStream("Sample.xlsx", FileMode.Open, FileAccess.Read);
  IWorkbook workbook = application.Workbooks.Open(inputStream, ExcelOpenType.Automatic);
  IWorksheet worksheet = workbook.Worksheets[0];

  //Freeze the panes
  worksheet.Range[8, 1].FreezePanes();

  //Unfreeze the panes
  worksheet.RemovePanes();

  FileStream stream = new FileStream("Unfreeze.xlsx", FileMode.OpenOrCreate, FileAccess.ReadWrite);
  workbook.SaveAs(stream);
  workbook.Close();
  excelEngine.Dispose();
}
using (ExcelEngine excelEngine = new ExcelEngine())
{
  IApplication application = excelEngine.Excel;
  Assembly assembly = typeof(App).GetTypeInfo().Assembly;
  Stream fileStream = assembly.GetManifestResourceStream("App.Sample.xlsx");
  IWorkbook workbook = application.Workbooks.Open(fileStream);
  IWorksheet worksheet = workbook.Worksheets[0];

  //Freeze the panes
  worksheet.Range[8, 1].FreezePanes();

  //Unfreeze the panes
  worksheet.RemovePanes();

  MemoryStream stream = new MemoryStream();
  workbook.SaveAs(stream);
  stream.Position = 0;

  //Save the stream as a file in the device and invoke it for viewing
  Xamarin.Forms.DependencyService.Get<ISave>().SaveAndView("Unfreeze.xlsx", "application/msexcel", stream);
}

See Also