private bool disposedValue = false; // To detect redundant calls
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
LineEnumerator?.Dispose();
DataRowEnumerator?.Dispose();
}
// TODO: free unmanaged resources (unmanaged objects) and override a finalizer below.
// TODO: set large fields to null.
disposedValue = true;
}
}
public IEnumerable <TPage> ToPagedData(int pageSize)
{
DataRowEnumerator = Rows().GetEnumerator();
while (DataRowEnumerator.MoveNext())
{
Mapper.AddRowToPage(DataRowEnumerator.Current);
if (Mapper.CurrentPageRowCount() >= pageSize)
{
yield return(Mapper.CurrentPage);
Mapper.NextPage();
}
}
if (Mapper.CurrentPageRowCount() > 0)
{
yield return(Mapper.CurrentPage);
}
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="input"></param>
public Mapper(object input)
: this()
{
var reader = input as IDataReader;
if (reader != null)
{
_reader = new DataReaderEnumerator(reader);
Error = _reader.Error;
_index = 1;
return;
}
var no = input as NameObjectCollectionBase;
if (no != null)
{
_nv = new NameValueEnumerator(no);
Error = _nv.Error;
_index = 2;
return;
}
var row = (input as DataRowView)?.Row ?? input as DataRow;
if (row?.Table != null)
{
_row = new DataRowEnumerator(row);
Error = _row.Error;
_index = 3;
return;
}
var dataset = input as DataSet;
if (dataset != null)
{
_dataSet = new DataSetEnumerator(dataset);
Error = _dataSet.Error;
_index = 4;
return;
}
var dict = input as IDictionary;
if (dict != null)
{
_enumerator = dict.GetEnumerator();
_index = 5;
return;
}
var ee = (input as IEnumerable)?.GetEnumerator() ?? input as IEnumerator;
if (ee != null)
{
_pair = new PairEnumerator(ee);
Error = _pair.Error;
_index = 6;
return;
}
var ps = PublicPropertyCache.GetByType(input.GetType());
if (ps.Length > 0)
{
_property = new PropertyEnumerator(input, ps);
Error = _property.Error;
_index = 7;
}
}
