public Cache <string, IDataSet> GetDataSets(IDataFormat format, ColumnInfoCache columnInfos)
{
var dataSets = new Cache <string, IDataSet>();
foreach (var sheetKeyValue in _dataSheets.KeyValues)
{
var data = new DataSet();
data.AddData(format.Parse(sheetKeyValue.Value, columnInfos));
dataSets.Add(sheetKeyValue.Key, data);
}
return(dataSets);
}