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| public class ExcelFileManager : FileManager
{
private SpreadsheetDocument _package;
private Row _currentRow;
private SheetData _sheetData;
private int? _cellColumnN2;
private int _cellColumnN1;
private int _cellRow;
public ExcelFileManager(string path)
: base(path)
{
_package = SpreadsheetDocument.Create(path, DocumentFormat.OpenXml.SpreadsheetDocumentType.Workbook);
_cellColumnN1 = 65;
_cellRow = 1;
CreateSpreadSheet();
}
private void CreateSpreadSheet()
{
var workbookPart1 = _package.AddWorkbookPart();
workbookPart1.Workbook = new Workbook();
var worksheetPart1 = workbookPart1.AddNewPart<WorksheetPart>();
worksheetPart1.Worksheet = new Worksheet();
var sheets = _package.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());
var sheet = new Sheet()
{
Id = _package.WorkbookPart.
GetIdOfPart(worksheetPart1),
SheetId = 1,
Name = "Users"
};
sheets.Append(sheet);
_sheetData = new SheetData();
_currentRow = new Row();
_sheetData.Append(_currentRow);
worksheetPart1.Worksheet.Append(_sheetData);
}
public override void AddHeader(IEnumerable<string> columnsName)
{
if (columnsName == null || !columnsName.Any())
throw new ArgumentNullException("columnsName");
try
{
AddRow(columnsName.ToArray());
}
catch (Exception e)
{
Tracing.Application.TraceError(-1, "An error occured when adding header to excel file", e);
throw;
}
}
public override void AddRow(params object[] values)
{
if (values == null || !values.Any())
throw new ArgumentNullException("values");
try
{
var listCells = new List<OpenXmlElement>();
foreach (var item in values)
{
listCells.Add(CreateCellRow(item));
}
_currentRow.Append(listCells);
AddNewRow();
}
catch (Exception e)
{
Tracing.Application.TraceError(-1, "An error occured when adding row to excel file", e);
throw;
}
}
public override void AddCell(object value)
{
try
{
var cell = CreateCellRow(value);
_currentRow.Append(cell);
}
catch (Exception e)
{
Tracing.Application.TraceError(-1, "An error occured when adding cell to excel file", e);
throw;
}
}
public override void AddNewRow()
{
_currentRow = new Row();
_sheetData.Append(_currentRow);
IncreaseRow();
}
#region Utils
private Cell CreateCellRow(object value)
{
Tracing.Application.TraceInformation("Add value \"{0}\" in cell {1}", value, GetCellLocation());
Cell cell = new Cell();
if (value == null)
{
cell.CellValue = new CellValue(string.Empty);
cell.DataType = CellValues.String;
}
else
{
cell.CellValue = new CellValue(value.ToString());
cell.DataType = GetCellType(value);
}
cell.CellReference = GetCellLocation();
IncreaseCellColumn();
return cell;
}
private CellValues GetCellType(object value)
{
CellValues type = CellValues.String;
if (value.GetType() == typeof(DateTime) || value.GetType() == typeof(DateTime?))
type = CellValues.Date;
if (value.GetType() == typeof(bool) || value.GetType() == typeof(bool?))
type = CellValues.Boolean;
if (IsNumericType(value.GetType()))
type = CellValues.Number;
return type;
}
public bool IsNumericType(Type type)
{
TypeCode typeCode = Type.GetTypeCode(type);
//The TypeCode of numerical types are between SByte (5) and Decimal (15).
return (int)typeCode >= 5 && (int)typeCode <= 15;
}
private void IncreaseCellColumn()
{
if (_cellColumnN1 < 90)
_cellColumnN1++;
else
{
_cellColumnN1 = 65;
if (!_cellColumnN2.HasValue)
_cellColumnN2 = 65;
else
_cellColumnN2++;
}
}
private void IncreaseRow()
{
_cellRow++;
_cellColumnN1 = 65;
_cellColumnN2 = null;
}
private string GetCellLocation()
{
Char? c1 = null;
if (_cellColumnN2.HasValue)
c1 = (char)_cellColumnN2;
Char c2 = (char)_cellColumnN1;
return string.Format("{0}{1}{2}", c1, c2, _cellRow);
}
#endregion
#region IDisposable
public override void Dispose()
{
if (_package != null)
{
_package.WorkbookPart.Workbook.Save();
_package.Close();
}
}
#endregion
} |
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