public static DateTime SafeGetDateTime(this IDataReader dataReader, string columnName, DateTime defaultValue = default(DateTime))
{
ChekArgumentAccuracy(columnName);
int columnIndex = GetColumnIndexByName(dataReader, columnName);
Func <DateTime> func = () => dataReader.GetDateTime(columnIndex);
return(DataReaderFunctorExecutor <DateTime> .ExecuteFunction(dataReader, columnIndex, func, defaultValue));
}
public static String SafeGetString(this IDataReader dataReader, string columnName, string defaultValue = default(String))
{
ChekArgumentAccuracy(columnName);
int columnIndex = GetColumnIndexByName(dataReader, columnName);
Func <String> func = () => dataReader.GetString(columnIndex);
return(DataReaderFunctorExecutor <String> .ExecuteFunction(dataReader, columnIndex, func, defaultValue));
}
public static Guid SafeGetGuid(this IDataReader dataReader, string columnName, Guid defaultValue = default(Guid))
{
ChekArgumentAccuracy(columnName);
int columnIndex = GetColumnIndexByName(dataReader, columnName);
Func <Guid> func = () => dataReader.GetGuid(columnIndex);
return(DataReaderFunctorExecutor <Guid> .ExecuteFunction(dataReader, columnIndex, func, defaultValue));
}
public static Char SafeGetChar(this IDataReader dataReader, string columnName, char defaultValue = default(Char))
{
ChekArgumentAccuracy(columnName);
int columnIndex = GetColumnIndexByName(dataReader, columnName);
Func <Char> func = () => dataReader.GetChar(columnIndex);
return(DataReaderFunctorExecutor <Char> .ExecuteFunction(dataReader, columnIndex, func, defaultValue));
}
public static Int64 SafeGetInt64(this IDataReader dataReader, string columnName, Int64 defaultValue = default(Int64))
{
ChekArgumentAccuracy(columnName);
int columnIndex = GetColumnIndexByName(dataReader, columnName);
Func <Int64> func = () => dataReader.GetInt64(columnIndex);
return(DataReaderFunctorExecutor <Int64> .ExecuteFunction(dataReader, columnIndex, func, defaultValue));
}
