public static IWorkbook AddSheet(this IWorkbook workbook, DataTable data)
{
string sheetName = data.TableName;
IExcelTypeFormater <ISheet> defaultExcelTypeFormater = new NpoiExcelTypeFormater();
ISheet sheet = workbook.GetSheet(sheetName);
if (sheet == null)
{
sheet = workbook.CreateSheet(sheetName);
}
defaultExcelTypeFormater.SetExcelWorksheet()?.Invoke(sheet);
var headerNames = new List <string>();
for (int i = 0; i < data.Columns.Count; i++)
{
headerNames.Add(data.Columns[i].ColumnName);
}
IExcelExportFormater <ICell> defaultExcelExportFormater = new NpoiExcelExportFormater();
int row = (sheet?.PhysicalNumberOfRows ?? 0);
int column = 0;
//表头行
var headerRowCell = sheet.CreateRow(row);
foreach (var headerName in headerNames)
{
defaultExcelExportFormater.SetHeaderCell()?.Invoke(headerRowCell.CreateCell(column), headerName);
column++;
}
row++;
//数据行
if (data != null && data.Rows.Count > 0)
{
for (int i = 0; i < data.Rows.Count; i++)
{
var rowCell = sheet.CreateRow(row);
column = 0;
foreach (var headerName in headerNames)
{
var mainValue = data.Rows[i][headerName];
defaultExcelExportFormater.SetBodyCell()?.Invoke(rowCell.CreateCell(column), mainValue);
column++;
}
row++;
}
}
return(workbook);
}
public static IWorkbook AddBody(this IWorkbook workbook, string sheetName, IList <IDictionary <string, object> > data)
{
ISheet sheet = workbook.GetSheet(sheetName);
if (sheet == null)
{
sheet = workbook.CreateSheet(sheetName);
}
if (data != null && data.Any())
{
IExcelExportFormater <ICell> defaultExcelExportFormater = new NpoiExcelExportFormater();
int row = (sheet?.PhysicalNumberOfRows ?? 0);
foreach (var dic in data)
{
int column = 0;
var rowCell = sheet.CreateRow(row);
foreach (var item in dic)
{
if (item.Value is ExportCellValue <ICell> cellValue)
{
if (cellValue?.ExportFormater != null)
{
cellValue?.ExportFormater.SetBodyCell()?.Invoke(rowCell.CreateCell(column), cellValue.Value);
}
else
{
defaultExcelExportFormater.SetBodyCell()?.Invoke(rowCell.CreateCell(column), cellValue.Value);
}
}
else
{
var valuePropertyInfo = item.Value.GetType().GetProperties().Where(o => o.Name.Equals("Value", StringComparison.InvariantCultureIgnoreCase)).FirstOrDefault();
var value = valuePropertyInfo?.GetValue(item.Value);
if (valuePropertyInfo == null || value == null)
{
throw new Exception("Value值不能为空");
}
var formatterPropertyInfo = item.Value.GetType().GetProperties().Where(o => typeof(IExcelExportFormater <ICell>).IsAssignableFrom(o.PropertyType)).FirstOrDefault();
if (formatterPropertyInfo != null)
{
var formatterValue = formatterPropertyInfo.GetValue(item.Value) as IExcelExportFormater <ICell>;
if (formatterValue != null)
{
formatterValue.SetBodyCell()?.Invoke(rowCell.CreateCell(column), value);
}
else
{
defaultExcelExportFormater.SetBodyCell()?.Invoke(rowCell.CreateCell(column), value);
}
}
else
{
defaultExcelExportFormater.SetBodyCell()?.Invoke(rowCell.CreateCell(column), value);
}
}
column++;
}
row++;
}
}
return(workbook);
}