I am trying to download the large excel file using open xml. I am able to download it. My excel file contains more than 100k records. When I double click on the file, I get below error message.
Below is my code.
public MemoryStream WriteExcelUsingOpenXML(IEnumerable<string> headers, IEnumerable<IEnumerable<string>> values, string worksheetName)
{
var stream = new MemoryStream();
var headersArray = headers.ToArray();
using (SpreadsheetDocument document = SpreadsheetDocument.Create(stream, SpreadsheetDocumentType.Workbook))
{
WorkbookPart workbookPart = document.AddWorkbookPart();
workbookPart.Workbook = new Workbook();
WorksheetPart worksheetPart = workbookPart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet();
Sheets sheets = workbookPart.Workbook.AppendChild(new Sheets());
Sheet sheet = new Sheet() { Id = workbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = Constants.TimephaseWorksheet };
sheets.Append(sheet);
workbookPart.Workbook.Save();
SheetData sheetData = worksheetPart.Worksheet.AppendChild(new SheetData());
// Constructing header
Row row = new Row();
foreach (var data in headersArray)
{
row.Append(ConstructCell(headersArray[0], CellValues.SharedString));
}
// Insert the header row to the Sheet Data
sheetData.AppendChild(row);
// Inserting each employee
foreach (var valuesEnumeration in values)
{
row = new Row();
var flattend = valuesEnumeration.ToArray();
row.Append(
ConstructCell(flattend[0], CellValues.Number),
ConstructCell(flattend[1], CellValues.SharedString),
ConstructCell(flattend[2], CellValues.SharedString),
ConstructCell(flattend[3], CellValues.Number),
ConstructCell(flattend[4], CellValues.SharedString));
sheetData.AppendChild(row);
}
worksheetPart.Worksheet.Save();
}
return stream;
}
private Cell ConstructCell(string value, CellValues dataType)
{
return new Cell()
{
CellValue = new CellValue(value),
DataType = new EnumValue<CellValues>(dataType)
};
}
Below is the sample data of excel file.
How to fix the error?
Related
I was trying to create an excel using Memory Stream. Here is the code I'm trying,
using (MemoryStream mem = new MemoryStream())
{
using (var sheetDocument = SpreadsheetDocument.Create(mem, SpreadsheetDocumentType.Workbook))
{
//// Add a WorkbookPart to the document.
WorkbookPart workbookpart = sheetDocument.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
WorkbookStylesPart workbookstyle = workbookpart.AddNewPart<WorkbookStylesPart>();
workbookstyle.Stylesheet = this.GenerateStyleSheet();
workbookstyle.Stylesheet.Save();
//// Add a WorksheetPart to the WorkbookPart.
WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet();
Columns cols = new Columns();
Column col = new Column();
col.BestFit = true;
col.CustomWidth = true;
col.Width = 22.33;
col.Max = 13;
col.Min = 1;
cols.Append(col);
worksheetPart.Worksheet.Append(cols);
SheetData sheetData = new SheetData();
worksheetPart.Worksheet.Append(sheetData);
//// Add Sheets to the Workbook.
Sheets sheets = sheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());
//// Append a new worksheet and associate it with the workbook.
Sheet sheet = new Sheet() { Id = sheetDocument.WorkbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = sheetName };
sheets.Append(sheet);
workbookpart.Workbook.Save();
List<string> columns = new List<string>();
foreach (DataColumn column in table.Columns)
{
columns.Add(column.ColumnName);
}
DocumentFormat.OpenXml.Spreadsheet.Row headerRow = this.CreateHeaderRow(columns);
sheetData.AppendChild(headerRow);
foreach (DataRow dataSetRow in table.Rows)
{
DocumentFormat.OpenXml.Spreadsheet.Row newRow = this.CreateDataRow(dataSetRow);
sheetData.AppendChild(newRow);
}
workbookpart.Workbook.Save();
var result = mem.ToArray();
System.IO.File.WriteAllBytes(fileName, result);
}
An excel file is getting created, but when I try to open it, I'm getting an error as bellow
If I press yes, it says
The workbook cannot be opened or repaired by Microsoft Excel because
it is corrupt
How can I fix this?
Thanks to #zaikhan's comment, I was able to fix my issue. When I closed the sheetDocument it worked.
using (MemoryStream mem = new MemoryStream())
{
using (var sheetDocument = SpreadsheetDocument.Create(mem, SpreadsheetDocumentType.Workbook))
{
//// Add a WorkbookPart to the document.
WorkbookPart workbookpart = sheetDocument.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
WorkbookStylesPart workbookstyle = workbookpart.AddNewPart<WorkbookStylesPart>();
workbookstyle.Stylesheet = this.GenerateStyleSheet();
workbookstyle.Stylesheet.Save();
//// Add a WorksheetPart to the WorkbookPart.
WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet();
Columns cols = new Columns();
Column col = new Column();
col.BestFit = true;
col.CustomWidth = true;
col.Width = 22.33;
col.Max = 13;
col.Min = 1;
cols.Append(col);
worksheetPart.Worksheet.Append(cols);
SheetData sheetData = new SheetData();
worksheetPart.Worksheet.Append(sheetData);
//// Add Sheets to the Workbook.
Sheets sheets = sheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());
//// Append a new worksheet and associate it with the workbook.
Sheet sheet = new Sheet() { Id = sheetDocument.WorkbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = sheetName };
sheets.Append(sheet);
workbookpart.Workbook.Save();
List<string> columns = new List<string>();
foreach (DataColumn column in table.Columns)
{
columns.Add(column.ColumnName);
}
DocumentFormat.OpenXml.Spreadsheet.Row headerRow = this.CreateHeaderRow(columns);
sheetData.AppendChild(headerRow);
foreach (DataRow dataSetRow in table.Rows)
{
DocumentFormat.OpenXml.Spreadsheet.Row newRow = this.CreateDataRow(dataSetRow);
sheetData.AppendChild(newRow);
}
workbookpart.Workbook.Save();
sheetDocument.Close();
}
var result = mem.ToArray();
System.IO.File.WriteAllBytes(fileName, result);
}
I am writing a routine to create and fill an Excel sheet in ASP.NET MVC. The object that I want to transfer to the sheet is a List, where T is a structure.
Do you know of any piece of code that does this?
The constructor that do this is:
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;
…
public byte[] ExcelContent;
public ExportExcel(List<OrdViewModel> ol)
{
MemoryStream memstream = new MemoryStream();
SpreadsheetDocument XlsxDoc = SpreadsheetDocument.Create(memstream, SpreadsheetDocumentType.Workbook);
WorkbookPart workbookpart = XlsxDoc.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
// Add a WorksheetPart to the WorkbookPart.
WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet(new SheetData());
// Add Sheets to the Workbook.
Sheets sheets = XlsxDoc.WorkbookPart.Workbook.
AppendChild<Sheets>(new Sheets());
Sheet sheet = new Sheet()
{
Id = XlsxDoc.WorkbookPart.GetIdOfPart(worksheetPart),
SheetId = 1,
Name = "Sheet1"
};
sheets.Append(sheet);
// code here…
XlsxDoc.Close();
ExcelContent = memstream.ToArray();
}
You can use my SwiftExcel library. It was designed to maximize performance and minimize memory usage when writing to Excel:
public ExportExcel(List<OrdViewModel> ol)
{
using (var ew = new ExcelWriter("C:\\temp\\test.xlsx"))
{
for (var row = 1; row <= ol.Count; row++)
{
var item = ol[row-1];
ew.Write(item.YourProperty1, 1, row);
ew.Write(item.YourProperty2, 2, row);
ew.Write(item.YourProperty3, 3, row);
ew.Write(item.YourProperty4, 4, row);
}
}
}
I have a problem in C# when i try to generate new excel file with 4 values. When i try to open file i receive an error telling me :
excel cannot open the file because the file format or file extension is not valid
When i try to debug it i have noticed that output is trowing :
System invalid operation exception and i don't know how to fix this. i just want to generate excel file that has some values inside (later i will fill insert my values). For now i am just trying to create excel file that isn't corrupted.
[HttpPost]
public HttpResponseMessage PrintDevices()
{
HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
using (MemoryStream output = new MemoryStream())
{
using (SpreadsheetDocument document = SpreadsheetDocument.Create(output, SpreadsheetDocumentType.Workbook))
{
WorkbookPart workbookPart = document.AddWorkbookPart();
workbookPart.Workbook = new Workbook();
WorksheetPart worksheetPart = workbookPart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet();
Sheets sheets = workbookPart.Workbook.AppendChild(new Sheets());
Sheet sheet = new Sheet()
{
Id = workbookPart.GetIdOfPart(worksheetPart),
SheetId = 1,
Name = "Testing"
};
sheets.Append(sheet);
workbookPart.Workbook.Save();
SheetData sheetData = worksheetPart.Worksheet.AppendChild(new SheetData());
// Constructing header
Row row = new Row();
row.Append(
ConstructCell("Id", CellValues.String),
ConstructCell("Name", CellValues.String),
ConstructCell("Birth Date", CellValues.String),
ConstructCell("Salary", CellValues.String));
// Insert the header row to the Sheet Data
sheetData.AppendChild(row);
// Inserting each employee
worksheetPart.Worksheet.Save();
}
}
Cell ConstructCell(string value, CellValues dataType)
{
return new Cell()
{
CellValue = new CellValue(value),
DataType = new EnumValue<CellValues>(dataType)
};
}
return response;
}
I inserted/appended new sheet in existing Excel file using open XML but I am not able to add rows and cell values. Following is my code:
using (var workbook = SpreadsheetDocument.Open(excelFilePath, true))
{
var workbookPart = workbook.WorkbookPart;
var wb = workbookPart.Workbook;
int rowIndex = 0;
// Add a blank WorksheetPart.
WorksheetPart newWorksheetPart = workbook.WorkbookPart.AddNewPart<WorksheetPart>();
newWorksheetPart.Worksheet = new Worksheet(new SheetData());
Sheets sheets = workbook.WorkbookPart.Workbook.GetFirstChild<Sheets>();
string relationshipId = workbook.WorkbookPart.GetIdOfPart(newWorksheetPart);
// Get a unique ID for the new worksheet.
uint sheetId = 1;
if (sheets.Elements<Sheet>().Count() > 0)
{
sheetId = sheets.Elements<Sheet>().Select(s => s.SheetId.Value).Max() + 1;
}
// Give the new worksheet a name.
string sheetName = "Data";
// Append the new worksheet and associate it with the workbook.
Sheet dataSheet = new Sheet() { Id = relationshipId, SheetId = sheetId, Name = sheetName };
sheets.Append(sheet);
workbookPart.Workbook.Save();
var sharedStringPart = workbookPart.SharedStringTablePart;
var values = sharedStringPart.SharedStringTable.Elements<SharedStringItem>().ToArray();
Row headerRow = new Row();
Cell cell = new Cell();
cell.DataType = CellValues.String;
cell.CellValue = new CellValue("EmpId");
headerRow.AppendChild<Cell>(cell);
cell = new Cell();
cell.DataType = CellValues.String;
cell.CellValue = new CellValue("Name");
headerRow.AppendChild<Cell>(cell);
headerRow.AppendChild<Cell>(cell);
dataSheet.InsertAt<Row>(headerRow, rowIndex++);
workbookPart.Workbook.Save();
}
}
It's throwing an exception:
Non-composite elements do not have child elements.
When i got this error ("Non-composite elements do not have child elements.") was about my sheet object. I got the worng object to Apeend, so you need change the use .Append to something like that:
Worksheet worksheet = worksheetPart.Worksheet;
SheetData sheetData = worksheet.GetFirstChild<SheetData>();
sheetData.Append(row);
A Full Example
using (SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(tmp, SpreadsheetDocumentType.Workbook))
{
// Add a WorkbookPart to the document.
WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
// Add a WorksheetPart to the WorkbookPart.
WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet(new SheetData());
// Add Sheets to the Workbook.
Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.
AppendChild<Sheets>(new Sheets());
// Append a new worksheet and associate it with the workbook.
Sheet sheet = new Sheet()
{
Id = spreadsheetDocument.WorkbookPart.
GetIdOfPart(worksheetPart),
SheetId = 1,
Name = fileName,
};
sheets.Append(sheet);
var firstChild = sheet.FirstChild;
//sheet.Append(row);
Worksheet worksheet = worksheetPart.Worksheet;
SheetData sheetData = worksheet.GetFirstChild<SheetData>();
UInt32 rowIndex = 1;
var row = new Row() { RowIndex = rowIndex };
var firstNameCell = new Cell() { CellReference = "A" + rowIndex };
firstNameCell.CellValue = new CellValue("FirstName");
firstNameCell.DataType = CellValues.String;
row.Append(firstNameCell);
Cell lastNameCell = new Cell() { CellReference = "B" + rowIndex };
lastNameCell.CellValue = new CellValue("LastName");
lastNameCell.DataType = new EnumValue<CellValues>(CellValues.String);
row.Append(lastNameCell);
sheetData.Append(row);
workbookpart.Workbook.Save();
// Close the document.
spreadsheetDocument.Close();
}
How can we able to write next row of the excel sheet if it ave records during exporting data from c#
it is the code i used for exporting data. to excel . i failed to export the data to next line by this code
private void ExportToOxml(bool firstTime)
{
if (count == 0)
{
ResultsData.Columns.Remove("TotalRecords");
ResultsData.Columns.Remove("PageIndex");
// fileName = #"C:\MyExcel.csv";
//Delete the file if it exists.
if (firstTime && File.Exists(xsfd.FileName))
{
File.Delete(fileName);
}
count++;
}
if (firstTime)
{
//This is the first time of creating the excel file and the first sheet.
// Create a spreadsheet document by supplying the filepath.
// By default, AutoSave = true, Editable = true, and Type = xlsx.
SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.
Create(fileName, SpreadsheetDocumentType.Workbook);
// Add a WorkbookPart to the document.
WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
// Add a WorksheetPart to the WorkbookPart.
var worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
var sheetData = new SheetData();
worksheetPart.Worksheet = new Worksheet(sheetData);
var bold1 = new System.Windows.Documents.Bold();
CellFormat cf = new CellFormat();
// Add Sheets to the Workbook.
Sheets sheets;
sheets = spreadsheetDocument.WorkbookPart.Workbook.
AppendChild<Sheets>(new Sheets());
// Append a new worksheet and associate it with the workbook.
var sheet = new Sheet()
{
Id = spreadsheetDocument.WorkbookPart.
GetIdOfPart(worksheetPart),
SheetId = sheetId,
Name = "Sheet" + sheetId
};
sheets.Append(sheet);
//Add Header Row.
var headerRow = new Row();
foreach (DataColumn column in ResultsData.Columns)
{
var cell = new Cell { DataType = CellValues.String, CellValue = new CellValue(column.ColumnName) };
headerRow.AppendChild(cell);
}
sheetData.AppendChild(headerRow);
foreach (DataRow row in ResultsData.Rows)
{
var newRow = new Row();
foreach (DataColumn col in ResultsData.Columns)
{
var cell = new Cell
{
DataType = CellValues.String,
CellValue = new CellValue(row[col].ToString())
};
newRow.AppendChild(cell);
}
sheetData.AppendChild(newRow);
}
workbookpart.Workbook.Save();
spreadsheetDocument.Close();
}
else
{
// Open the Excel file that we created before, and start to add sheets to it.
var spreadsheetDocument = SpreadsheetDocument.Open(fileName, true);
var workbookpart = spreadsheetDocument.WorkbookPart;
if (workbookpart.Workbook == null)
workbookpart.Workbook = new Workbook();
var worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
var sheetData = new SheetData();
worksheetPart.Worksheet = new Worksheet(sheetData);
var sheets = spreadsheetDocument.WorkbookPart.Workbook.Sheets;
if (sheets.Elements<Sheet>().Any())
{
//Set the new sheet id
sheetId = sheets.Elements<Sheet>().Max(s => s.SheetId.Value) + 1;
}
else
{
sheetId = 1;
}
// Append a new worksheet and associate it with the workbook.
var sheet = new Sheet()
{
Id = spreadsheetDocument.WorkbookPart.
GetIdOfPart(worksheetPart),
SheetId = sheetId,
Name = "Sheet" + sheetId
};
sheets.Append(sheet);
//Add the header row here.
var headerRow = new Row();
foreach (DataColumn column in ResultsData.Columns)
{
var cell = new Cell { DataType = CellValues.String, CellValue = new CellValue(column.ColumnName) };
headerRow.AppendChild(cell);
}
sheetData.AppendChild(headerRow);
foreach (DataRow row in ResultsData.Rows)
{
var newRow = new Row();
foreach (DataColumn col in ResultsData.Columns)
{
var cell = new Cell
{
DataType = CellValues.String,
CellValue = new CellValue(row[col].ToString())
};
newRow.AppendChild(cell);
}
sheetData.AppendChild(newRow);
}
workbookpart.Workbook.Save();
// Close the document.
spreadsheetDocument.Close();
}
}