private int FillLoadDataRow(SchemaMapping mapping)
{
int rowsAddedToDataSet = 0;
DataReaderContainer dataReader = mapping.DataReader;
if (_hasFillErrorHandler)
{
while (dataReader.Read())
{ // read remaining rows of first and subsequent resultsets
try
{
// only try-catch if a FillErrorEventHandler is registered so that
// in the default case we get the full callstack from users
mapping.LoadDataRowWithClear();
rowsAddedToDataSet++;
}
catch (Exception e) when(ADP.IsCatchableExceptionType(e))
{
ADP.TraceExceptionForCapture(e);
OnFillErrorHandler(e, mapping.DataTable, mapping.DataValues);
}
}
}
else
{
while (dataReader.Read())
{
// read remaining rows of first and subsequent resultset
mapping.LoadDataRow();
rowsAddedToDataSet++;
}
}
return(rowsAddedToDataSet);
}
private int FillLoadDataRow(SchemaMapping mapping)
{
int num = 0;
DataReaderContainer dataReader = mapping.DataReader;
if (!this._hasFillErrorHandler)
{
while (dataReader.Read())
{
mapping.LoadDataRow();
num++;
}
return(num);
}
while (dataReader.Read())
{
try
{
mapping.LoadDataRowWithClear();
num++;
continue;
}
catch (Exception exception)
{
if (!ADP.IsCatchableExceptionType(exception))
{
throw;
}
ADP.TraceExceptionForCapture(exception);
this.OnFillErrorHandler(exception, mapping.DataTable, mapping.DataValues);
continue;
}
}
return(num);
}
private int FillLoadDataRowChunk(SchemaMapping mapping, int startRecord, int maxRecords)
{
DataReaderContainer dataReader = mapping.DataReader;
while (0 < startRecord)
{
if (!dataReader.Read())
{
// there are no more rows on first resultset
return(0);
}
--startRecord;
}
int rowsAddedToDataSet = 0;
if (0 < maxRecords)
{
while ((rowsAddedToDataSet < maxRecords) && dataReader.Read())
{
if (_hasFillErrorHandler)
{
try {
mapping.LoadDataRowWithClear();
rowsAddedToDataSet++;
}
catch (Exception e) {
//
if (!ADP.IsCatchableExceptionType(e))
{
throw;
}
ADP.TraceExceptionForCapture(e);
OnFillErrorHandler(e, mapping.DataTable, mapping.DataValues);
}
}
else
{
mapping.LoadDataRow();
rowsAddedToDataSet++;
}
}
// skip remaining rows of the first resultset
}
else
{
rowsAddedToDataSet = FillLoadDataRow(mapping);
}
return(rowsAddedToDataSet);
}
private int FillLoadDataRowChunk(SchemaMapping mapping, int startRecord, int maxRecords)
{
DataReaderContainer dataReader = mapping.DataReader;
while (0 < startRecord)
{
if (!dataReader.Read())
{
return(0);
}
startRecord--;
}
int num = 0;
if (0 >= maxRecords)
{
return(this.FillLoadDataRow(mapping));
}
while ((num < maxRecords) && dataReader.Read())
{
if (this._hasFillErrorHandler)
{
try
{
mapping.LoadDataRowWithClear();
num++;
}
catch (Exception exception)
{
if (!ADP.IsCatchableExceptionType(exception))
{
throw;
}
ADP.TraceExceptionForCapture(exception);
this.OnFillErrorHandler(exception, mapping.DataTable, mapping.DataValues);
}
}
else
{
mapping.LoadDataRow();
num++;
}
}
return(num);
}
