public static byte[] ToExcelWorkbook <T>(this IEnumerable <T> list, ExcelFormattingSettings formattingSettings = null)
{
if (formattingSettings == null)
{
formattingSettings = ExcelFormattingSettings.Default <T>();
}
// Create Excel workbook
using var wb = new XLWorkbook();
AddPage(wb, formattingSettings.SheetName, list, formattingSettings);
// Return as byte array
return(wb.GetAsByteArray());
}
public static byte[] ToExcelPackage <T>(this IEnumerable <T> list, ExcelFormattingSettings formattingSettings = null)
{
if (formattingSettings == null)
{
formattingSettings = ExcelFormattingSettings.Default <T>();
}
// Create Excel package
using (var p = new ExcelPackage())
{
AddPage(p, formattingSettings.SheetName, list, formattingSettings);
// Return as byte array
return(p.GetAsByteArray());
}
}
public static byte[] ToExcelWorkbook(this IEnumerable <QueryResult> queryResults, ExcelFormattingSettings formattingSettings = null)
{
if (formattingSettings == null)
{
formattingSettings = ExcelFormattingSettings.Default("Sheet1");
}
// Create Excel package
using var wb = new XLWorkbook();
foreach (var result in queryResults)
{
AddQueryResultPage(wb, result, formattingSettings);
}
// Return as byte array
return(wb.GetAsByteArray());
}
public static byte[] ToExcelPackage(this IEnumerable <QueryResult> queryResults, ExcelFormattingSettings formattingSettings = null)
{
if (formattingSettings == null)
{
formattingSettings = ExcelFormattingSettings.Default("Sheet1");
}
// Create Excel package
using (var p = new ExcelPackage())
{
foreach (var result in queryResults)
{
AddQueryResultPage(p, result, formattingSettings);
}
// Return as byte array
return(p.GetAsByteArray());
}
}
public static byte[] ToExcelPackage <T>(this Dictionary <string, IEnumerable <T> > lists, ExcelFormattingSettings formattingSettings = null)
{
if (formattingSettings == null)
{
formattingSettings = ExcelFormattingSettings.Default <T>();
}
// Create Excel package
using (var p = new ExcelPackage())
{
// Create a sheet
var ws = p.Workbook.Worksheets.Add(formattingSettings.SheetName);
foreach (var list in lists)
{
AddPage(p, list.Key, list.Value, formattingSettings);
}
// Return as byte array
return(p.GetAsByteArray());
}
}
private static void AddPage <T>(XLWorkbook workbook, string pageName, IEnumerable <T> data, ExcelFormattingSettings formattingSettings)
{
var type = typeof(T);
var props = type.GetProperties();
//Create a sheet
var ws = workbook.Worksheets.Add(pageName);
// Default style
ws.Style.Font.FontSize = formattingSettings.DefaultFont.Size;
ws.Style.Font.FontName = formattingSettings.DefaultFont.Family;
ws.Style.Font.Bold = formattingSettings.DefaultFont.IsBold;
ws.Style.Font.Italic = formattingSettings.DefaultFont.IsItalic;
int iColumn = 1;
int iRow = 1;
// Add headers
if (formattingSettings.HeaderSettings.AddHeaders)
{
//Header font settings
ws.Row(iRow).Style.Font.FontName = formattingSettings.HeaderSettings.Font.Family;
ws.Row(iRow).Style.Font.FontSize = formattingSettings.HeaderSettings.Font.Size;
ws.Row(iRow).Style.Font.Bold = formattingSettings.HeaderSettings.Font.IsBold;
ws.Row(iRow).Style.Font.Italic = formattingSettings.HeaderSettings.Font.IsItalic;
foreach (var prop in props)
{
var columnSettings = prop.GetCustomAttribute <ColumnSettingsAttribute>();
ws.Cell(iRow, iColumn++).Value = columnSettings == null ? prop.Name : columnSettings.Header;
}
iRow++;
}
// Add data
foreach (var obj in data)
{
iColumn = 1;
for (int i = 0; i < props.Length; i++)
{
ws.Cell(iRow, iColumn).Value = props[i].GetValue(obj);
if (props[i].PropertyType == typeof(DateTime))
{
ws.Cell(iRow, iColumn).Style.DateFormat.Format = formattingSettings.DateFormat;
}
iColumn++;
}
iRow++;
}
// Column widths
if (formattingSettings.AutoFit)
{
ws.Columns().AdjustToContents();
}
// Freeze headers
if (formattingSettings.HeaderSettings.AddHeaders)
{
ws.RangeUsed().SetAutoFilter(true);
ws.SheetView.Freeze(1, 0);
}
}
private static void AddQueryResultPage(XLWorkbook wb, QueryResult result, ExcelFormattingSettings formattingSettings)
{
//Create a sheet
var ws = wb.Worksheets.Add(result.Name);
// Columns
int length = result.Columns.Count();
if (length == 0)
{
return;
}
// Default style
ws.Style.Font.FontSize = formattingSettings.DefaultFont.Size;
ws.Style.Font.FontName = formattingSettings.DefaultFont.Family;
ws.Style.Font.Bold = formattingSettings.DefaultFont.IsBold;
ws.Style.Font.Italic = formattingSettings.DefaultFont.IsItalic;
int iColumn = 1;
int iRow = 1;
var columns = result.Columns.ToList();
// Add headers
if (formattingSettings.HeaderSettings.AddHeaders)
{
//Header font settings
ws.Row(iRow).Style.Font.FontName = formattingSettings.HeaderSettings.Font.Family;
ws.Row(iRow).Style.Font.FontSize = formattingSettings.HeaderSettings.Font.Size;
ws.Row(iRow).Style.Font.Bold = formattingSettings.HeaderSettings.Font.IsBold;
ws.Row(iRow).Style.Font.Italic = formattingSettings.HeaderSettings.Font.IsItalic;
foreach (var column in result.Columns)
{
var md = result.Metadata.Columns.FirstOrDefault(c => c.Name == column.Name);
ws.Cell(iRow, iColumn++).Value = md?.Label ?? column.Name;
}
iRow++;
}
// Add data
foreach (IDictionary <string, object> obj in result.Data)
{
iColumn = 1;
for (int i = 0; i < length; i++)
{
ws.Cell(iRow, iColumn).Value = obj[columns[i].Name];
if (columns[i].ColumnType?.Equals(typeof(DateTime)) == true)
{
ws.Cell(iRow, iColumn).Style.DateFormat.Format = formattingSettings.DateFormat;
}
iColumn++;
}
iRow++;
}
// Check for totals
if (result.Metadata.Columns.Any(c => c.HasTotals))
{
iRow++;
ws.Cell(iRow, 1).Value = result.Metadata.TotalsLabel;
var totals = result.Metadata.Columns.Where(c => c.HasTotals);
foreach (var total in totals)
{
var columnIndex = columns
.FindIndex(c => c.Name.Equals(total.Name, StringComparison.OrdinalIgnoreCase)) + 1;
var columnName = (char)('A' - 1 + columnIndex);
var startingRow = formattingSettings.HeaderSettings.AddHeaders ? 2 : 1;
ws.Cell(iRow, columnIndex).FormulaA1 = $"=SUM({columnName}{startingRow}:{columnName}{iRow -2})";
}
ws.Row(iRow).Style.Font.Bold = true;
}
// Check for fixed rows
if (result.Metadata.FixedColumns > 0)
{
ws.SheetView.FreezeColumns(result.Metadata.FixedColumns);
}
// Column widths
if (formattingSettings.AutoFit)
{
ws.Columns().AdjustToContents();
}
// Freeze headers
if (formattingSettings.HeaderSettings.AddHeaders)
{
ws.RangeUsed().SetAutoFilter(true);
ws.SheetView.FreezeRows(1);
}
}
private static void AddPage <T>(ExcelPackage package, string pageName, IEnumerable <T> data, ExcelFormattingSettings formattingSettings)
{
var type = typeof(T);
var props = type.GetProperties();
//Create a sheet
var ws = package.Workbook.Worksheets.Add(pageName);
// Default style
ws.Cells.Style.Font.Size = formattingSettings.DefaultFont.Size;
ws.Cells.Style.Font.Name = formattingSettings.DefaultFont.Family;
ws.Cells.Style.Font.Bold = formattingSettings.DefaultFont.IsBold;
ws.Cells.Style.Font.Italic = formattingSettings.DefaultFont.IsItalic;
int iColumn = 0;
// Add headers
if (formattingSettings.HeaderSettings.AddHeaders)
{
//Header font settings
ws.Cells[1, 1, 1, props.Length].Style.Font.Name = formattingSettings.HeaderSettings.Font.Family;
ws.Cells[1, 1, 1, props.Length].Style.Font.Size = formattingSettings.HeaderSettings.Font.Size;
ws.Cells[1, 1, 1, props.Length].Style.Font.Bold = formattingSettings.HeaderSettings.Font.IsBold;
ws.Cells[1, 1, 1, props.Length].Style.Font.Italic = formattingSettings.HeaderSettings.Font.IsItalic;
foreach (var prop in props)
{
ws.Cells[1, ++iColumn].Value = prop.Name;
}
}
// Add data
int iRow = 2;
foreach (var obj in data)
{
iColumn = 0;
for (int i = 0; i < props.Length; i++)
{
ws.Cells[iRow, ++iColumn].Value = props[i].GetValue(obj);
if (props[i].PropertyType.Equals(typeof(DateTime)))
{
ws.Cells[iRow, iColumn].Style.Numberformat.Format = formattingSettings.DateFormat;
}
}
iRow++;
}
// Fix widths
if (formattingSettings.AutoFit)
{
for (int i = 0; i < props.Length; i++)
{
ws.Column(i + 1).AutoFit();
}
}
// Freeze headers
ws.View.FreezePanes(2, 1);
}
private static void AddQueryResultPage(ExcelPackage package, QueryResult result, ExcelFormattingSettings formattingSettings)
{
// Columns
int length = result.Columns.Count();
//Create a sheet
var ws = package.Workbook.Worksheets.Add(result.Name);
// Default style
ws.Cells.Style.Font.Size = formattingSettings.DefaultFont.Size;
ws.Cells.Style.Font.Name = formattingSettings.DefaultFont.Family;
ws.Cells.Style.Font.Bold = formattingSettings.DefaultFont.IsBold;
ws.Cells.Style.Font.Italic = formattingSettings.DefaultFont.IsItalic;
int iColumn = 0;
// Add headers
if (formattingSettings.HeaderSettings.AddHeaders)
{
//Header font settings
ws.Cells[1, 1, 1, length].Style.Font.Name = formattingSettings.HeaderSettings.Font.Family;
ws.Cells[1, 1, 1, length].Style.Font.Size = formattingSettings.HeaderSettings.Font.Size;
ws.Cells[1, 1, 1, length].Style.Font.Bold = formattingSettings.HeaderSettings.Font.IsBold;
ws.Cells[1, 1, 1, length].Style.Font.Italic = formattingSettings.HeaderSettings.Font.IsItalic;
foreach (var column in result.Columns)
{
ws.Cells[1, ++iColumn].Value = column.Name;
}
}
// Add data
int iRow = 2;
var columns = result.Columns.ToArray();
foreach (IDictionary <string, object> obj in result.Data)
{
iColumn = 0;
for (int i = 0; i < length; i++)
{
ws.Cells[iRow, ++iColumn].Value = obj[columns[i].Name];
if (columns[i].ColumnType.Equals(typeof(DateTime)))
{
ws.Cells[iRow, iColumn].Style.Numberformat.Format = formattingSettings.DateFormat;
}
}
iRow++;
}
// Fix widths
if (formattingSettings.AutoFit)
{
for (int i = 0; i < length; i++)
{
ws.Column(i + 1).AutoFit();
}
}
// Freeze headers
ws.View.FreezePanes(2, 1);
}