public ImportFileFormat AddSheet(SheetFormat sheet)
{
if (sheet == null)
{
throw new ArgumentNullException("sheet格式定义对象不能为空");
}
this.Sheets.Add(sheet);
return(this);
}
protected virtual SheetImportResult ImportSheet(ISheet sheet, SheetFormat format)
{
SheetImportResult result = new SheetImportResult();
result.Name = format.Name;
result.Index = format.Index;
int dataColumnEnd;
List <string> headerData = this.GetHeaderData(sheet, format, out dataColumnEnd);
int rowIndex = format.DataRowStart;
bool isEnd = false;
IRow dataRow = sheet.GetRow(rowIndex);
while (!isEnd && dataRow != null)
{
List <object> rowData = this.GetRowData(dataRow, format, rowIndex, dataColumnEnd);
ImportRowEventArg arg = new ImportRowEventArg();
arg.RowData = rowData;
arg.HeaderData = headerData;
arg.Format = format;
arg.RowIndex = rowIndex;
if (this.OnDataRowImporting != null)
{
this.OnDataRowImporting(this, arg);
}
if (arg.IsSkip)
{
result.IncreaseSkiped();
}
else if (!string.IsNullOrEmpty(arg.Error))
{
result.AddError(string.Format("第{0}处理失败:{1}", rowIndex, arg.Error));
}
else if (arg.IsSuccess)
{
result.IncreaseSuccess();
}
isEnd = arg.IsEnd;
if (!isEnd && format.AllEmptyIsEnd && rowData == null)
{
isEnd = true;
}
if (!isEnd)
{
rowIndex++;
}
dataRow = sheet.GetRow(rowIndex);
}
return(result);
}
protected virtual List <object> GetRowData(IRow row, SheetFormat format, int rowIndex, int dataColumnEnd)
{
List <object> data = new List <object>();
bool allNull = true;
for (int i = format.DataColumnStart; i <= dataColumnEnd; i++)
{
ICell cell = row.GetCell(i);
object one = this.GetCellValue(cell);
if (one != null)
{
allNull = false;
}
data.Add(one);
}
if (!allNull)
{
return(data);
}
return(null);
}
protected virtual List <string> GetHeaderData(ISheet sheet, SheetFormat format, out int dataColumnEnd)
{
dataColumnEnd = 0;
List <string> rtn = new List <string>();
IRow row = sheet.GetRow(format.HeaderRowIndex);
if (row == null)
{
throw new ApplicationException("无法找到header行");
}
bool hasEnd = format.DataColumnEnd.HasValue;
if (hasEnd)
{
dataColumnEnd = format.DataColumnEnd.Value;
for (int cellNum = format.DataColumnStart; cellNum <= format.DataColumnEnd; cellNum++)
{
ICell cell = row.GetCell(cellNum);
string data = this.GetStringFromCell(cell);
rtn.Add(data);
}
}
else
{
int cellNum2 = format.DataColumnStart;
ICell cell2 = row.GetCell(cellNum2);
string data2 = this.GetStringFromCell(cell2);
while (cell2 != null && !string.IsNullOrEmpty(data2))
{
rtn.Add(data2);
dataColumnEnd = cellNum2;
cellNum2++;
cell2 = row.GetCell(cellNum2);
data2 = this.GetStringFromCell(cell2);
}
}
return(rtn);
}
