private static object ConvertIfNecessary(object value, Type objectType, ObjectTypeCode typeCode, ObjectTypeCode expectedTypeCode, bool isConvertible)
{
if (expectedTypeCode != typeCode && isConvertible)
{
return(Reflector.ChangeType(value, objectType));
}
return(value);
}
public static T SafeCast <T>(this object source)
{
var destinationType = typeof(T);
//if (null == source && destinationType.IsPrimitive)
//{
// throw new InvalidCastException();
//}
if (null == source || !(source is IConvertible))
{
return((T)source);
}
return((T)Reflector.ChangeType(source, destinationType));
}
public static async Task <T> RetrieveScalarAsync <T>(string sql, Param[] parameters = null, string connectionName = null, DbConnection connection = null, string schema = null)
where T : struct
{
var response = connection != null
? await ExecuteAsync(sql, parameters, OperationReturnType.Scalar, OperationType.Sql, connection : connection, schema : schema)
: await ExecuteAsync(sql, parameters, OperationReturnType.Scalar, OperationType.Sql, connectionName : connectionName, schema : schema);
var value = response.Value;
if (value == null)
{
return(default(T));
}
return((T)Reflector.ChangeType(value, typeof(T)));
}