Ejemplo n.º 1
0
        // Generates content of worksheetPart1.
        private void GenerateWorksheetPart1Content <T>(WorksheetPart worksheetPart1, IEnumerable <T> data)
        {
            Worksheet worksheet1 = new Worksheet();
            SheetData sheetData1 = new SheetData();


            var props = (typeof(T)).GetProperties().Where(f =>

                                                          !f.IsDefined(typeof(ScaffoldColumnAttribute), true) || ((ScaffoldColumnAttribute)f.GetCustomAttributes(typeof(ScaffoldColumnAttribute), true).First()).Scaffold == true
                                                          ).OrderBy(f => {
                if (f.IsDefined(typeof(DisplayAttribute), true))
                {
                    return(((DisplayAttribute)f.GetCustomAttributes(typeof(DisplayAttribute), true).First()).GetOrder());
                }
                else
                {
                    return(default(int));
                }
            });

            DocumentFormat.OpenXml.Spreadsheet.Row headerRow = new DocumentFormat.OpenXml.Spreadsheet.Row();
            UInt32Value rowIndex = 1;

            headerRow.RowIndex = rowIndex++;
            List <String> columns = new List <string>();

            foreach (var prop in props)
            {
                var headerName = prop.Name;
                if (prop.IsDefined(typeof(DisplayNameAttribute), true))
                {
                    headerName = ((DisplayNameAttribute)prop.GetCustomAttributes(typeof(DisplayNameAttribute), true).First()).DisplayName;
                }
                if (prop.IsDefined(typeof(DisplayAttribute), true))
                {
                    var da = ((DisplayAttribute)prop.GetCustomAttributes(typeof(DisplayAttribute), true).First());
                    headerName = da.GetShortName() ?? da.GetName() ?? prop.Name;
                }

                columns.Add(prop.Name);
                DocumentFormat.OpenXml.Spreadsheet.Cell cell = headerRow.Create();
                cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;

                cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(headerName);
                headerRow.AppendChild(cell);
            }
            sheetData1.AppendChild(headerRow);


            foreach (var item in data)
            {
                int cellIndex = 0;
                var row       = sheetData1.Create();
                foreach (var prop in props)
                {
                    var    val = prop.GetValue(item, null);
                    string str = null;
                    if (val == null)
                    {
                        str = null;
                    }
                    else if ((prop.PropertyType == typeof(DateTime) || prop.PropertyType == typeof(Nullable <DateTime>)) && prop.IsDefined(typeof(DisplayFormatAttribute), true))
                    {
                        var df = ((DisplayFormatAttribute)prop.GetCustomAttributes(typeof(DisplayFormatAttribute), true).First());

                        if (df != null)
                        {
                            var date = (val as DateTime?).Value;

                            str = date.ToString(df.DataFormatString);
                        }
                    }
                    else
                    {
                        str = val.ToString();
                    }

                    var cell = new Cell()
                    {
                        CellReference = XlsxExtensions.Column(cellIndex++) + rowIndex.ToString()
                    };

                    if (prop.PropertyType == typeof(int) || prop.PropertyType == typeof(Nullable <int>) ||
                        prop.PropertyType == typeof(decimal) || prop.PropertyType == typeof(Nullable <decimal>))
                    {
                        cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.Number;
                    }
                    else
                    {
                        cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
                    }



                    cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(str);
                    row.AppendChild(cell);
                }
                sheetData1.AppendChild(row);
                rowIndex++;
            }



            worksheet1.Append(sheetData1);
            worksheetPart1.Worksheet = worksheet1;
        }