Еще один БОЛЬШОЙ БОЛЬШОЙ голос за: https://github.com/closedxml/closedxml
После попытки создать свой собственный класс из кусочков и кусочков, распределенных по сети, включая StackOverFlow, я нашел вышеупомянутую библиотеку и через несколько мгновенийПолнофункциональный файл Excel.
Ниже приведена моя попытка наставления любого, кто испытывает желание завершить его.Он частично завершен и имеет проблемы с созданием ячейки даты и строки.
Прежде чем пытаться использовать этот класс, сначала загрузите closedXML и попробуйте сначала.
Считайте себя предупрежденным.
/// <summary>
/// This class allows for the easy creation of a simple Excel document who's sole purpose is to contain some export data.
/// The document is created using OpenXML.
/// </summary>
internal class SimpleExcelDocument : IDisposable
{
SheetData sheetData;
/// <summary>
/// Constructor is nothing special because the work is done at export.
/// </summary>
internal SimpleExcelDocument()
{
sheetData = new SheetData();
}
#region Get Cell Reference
public Cell GetCell(string fullAddress)
{
return sheetData.Descendants<Cell>().Where(c => c.CellReference == fullAddress).FirstOrDefault();
}
public Cell GetCell(uint rowId, uint columnId, bool autoCreate)
{
return GetCell(getColumnName(columnId), rowId, autoCreate);
}
public Cell GetCell(string columnName, uint rowId, bool autoCreate)
{
return getCell(sheetData, columnName, rowId, autoCreate);
}
#endregion
#region Get Cell Contents
// See: http://msdn.microsoft.com/en-us/library/ff921204.aspx
//
#endregion
#region Set Cell Contents
public void SetValue(uint rowId, uint columnId, bool value)
{
Cell cell = GetCell(rowId, columnId, true);
cell.DataType = CellValues.Boolean;
cell.CellValue = new CellValue(BooleanValue.FromBoolean(value));
}
public void SetValue(uint rowId, uint columnId, double value)
{
Cell cell = GetCell(rowId, columnId, true);
cell.DataType = CellValues.Number;
cell.CellValue = new CellValue(DoubleValue.FromDouble(value));
}
public void SetValue(uint rowId, uint columnId, Int64 value)
{
Cell cell = GetCell(rowId, columnId, true);
cell.DataType = CellValues.Number;
cell.CellValue = new CellValue(IntegerValue.FromInt64(value));
}
public void SetValue(uint rowId, uint columnId, DateTime value)
{
Cell cell = GetCell(rowId, columnId, true);
//cell.DataType = CellValues.Date;
cell.CellValue = new CellValue(value.ToOADate().ToString());
cell.StyleIndex = 1;
}
public void SetValue(uint rowId, uint columnId, string value)
{
Cell cell = GetCell(rowId, columnId, true);
cell.InlineString = new InlineString(value.ToString());
cell.DataType = CellValues.InlineString;
}
public void SetValue(uint rowId, uint columnId, object value)
{
bool boolResult;
Int64 intResult;
DateTime dateResult;
Double doubleResult;
string stringResult = value.ToString();
if (bool.TryParse(stringResult, out boolResult))
{
SetValue(rowId, columnId, boolResult);
}
else if (DateTime.TryParse(stringResult, out dateResult))
{
SetValue(rowId, columnId,dateResult);
}
else if (Int64.TryParse(stringResult, out intResult))
{
SetValue(rowId, columnId, intResult);
}
else if (Double.TryParse(stringResult, out doubleResult))
{
SetValue(rowId, columnId, doubleResult);
}
else
{
// Just assume that it is a plain string.
SetValue(rowId, columnId, stringResult);
}
}
#endregion
public SheetData ExportAsSheetData()
{
return sheetData;
}
public void ExportAsXLSXStream(Stream outputStream)
{
// See: http://blogs.msdn.com/b/chrisquon/archive/2009/07/22/creating-an-excel-spreadsheet-from-scratch-using-openxml.aspx for some ideas...
// See: http://stackoverflow.com/questions/1271520/opening-xlsx-in-office-2003
using (SpreadsheetDocument package = SpreadsheetDocument.Create(outputStream, SpreadsheetDocumentType.Workbook))
{
// Setup the basics of a spreadsheet document.
package.AddWorkbookPart();
package.WorkbookPart.Workbook = new Workbook();
WorksheetPart workSheetPart = package.WorkbookPart.AddNewPart<WorksheetPart>();
workSheetPart.Worksheet = new Worksheet(sheetData);
workSheetPart.Worksheet.Save();
// create the worksheet to workbook relation
package.WorkbookPart.Workbook.AppendChild(new Sheets());
Sheet sheet = new Sheet {
Id = package.WorkbookPart.GetIdOfPart(workSheetPart),
SheetId = 1,
Name = "Sheet 1"
};
package.WorkbookPart.Workbook.GetFirstChild<Sheets>().AppendChild<Sheet>(sheet);
package.WorkbookPart.Workbook.Save();
package.Close();
}
}
#region Internal Methods
private static string getColumnName(uint columnId)
{
if (columnId < 1)
{
throw new Exception("The column # can't be less then 1.");
}
columnId--;
if (columnId >= 0 && columnId < 26)
return ((char)('A' + columnId)).ToString();
else if (columnId > 25)
return getColumnName(columnId / 26) + getColumnName(columnId % 26 + 1);
else
throw new Exception("Invalid Column #" + (columnId + 1).ToString());
}
// Given a worksheet, a column name, and a row index,
// gets the cell at the specified column
private static Cell getCell(SheetData worksheet,
string columnName, uint rowIndex, bool autoCreate)
{
Row row = getRow(worksheet, rowIndex, autoCreate);
if (row == null)
return null;
Cell foundCell = row.Elements<Cell>().Where(c => string.Compare
(c.CellReference.Value, columnName +
rowIndex, true) == 0).FirstOrDefault();
if (foundCell == null && autoCreate)
{
foundCell = new Cell();
foundCell.CellReference = columnName;
row.AppendChild(foundCell);
}
return foundCell;
}
// Given a worksheet and a row index, return the row.
// See: http://msdn.microsoft.com/en-us/library/bb508943(v=office.12).aspx#Y2142
private static Row getRow(SheetData worksheet, uint rowIndex, bool autoCreate)
{
if (rowIndex < 1)
{
throw new Exception("The row # can't be less then 1.");
}
Row foundRow = worksheet.Elements<Row>().Where(r => r.RowIndex == rowIndex).FirstOrDefault();
if (foundRow == null && autoCreate)
{
foundRow = new Row();
foundRow.RowIndex = rowIndex;
worksheet.AppendChild(foundRow);
}
return foundRow;
}
#endregion
#region IDisposable Stuff
private bool _disposed;
//private bool _transactionComplete;
/// <summary>
/// This will dispose of any open resources.
/// </summary>
public void Dispose()
{
Dispose(true);
// Use SupressFinalize in case a subclass
// of this type implements a finalizer.
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
{
// If you need thread safety, use a lock around these
// operations, as well as in your methods that use the resource.
if (!_disposed)
{
if (disposing)
{
//if (!_transactionComplete)
// Commit();
}
// Indicate that the instance has been disposed.
//_transaction = null;
_disposed = true;
}
}
#endregion
}