/// <summary>
/// 将DataTable中的所有数据转换成List>T<集合
/// </summary>
/// <typeparam name="T">DataTable中每条数据可以转换的数据类型</typeparam>
/// <param name="dataTable">包含有可以转换成数据类型T的数据集合</param>
/// <returns></returns>
public static IEnumerable <T> GetEntities <T>(DataTable dataTable)
{
if (dataTable == null)
{
throw new ArgumentNullException(nameof(dataTable));
}
//如果T的类型满足以下条件：字符串、ValueType或者是Nullable<ValueType>
if (typeof(T).IsSimpleType())
{
return(GetSimpleEntities <T>(dataTable));
}
else
{
//return dataTable.CreateDataReader().ToCollection<T>();
return(DapperEntityConverter.ToCollection <T>(dataTable.CreateDataReader())); //不能使用using (var reader = dataTable.CreateDataReader())
}
}
/// <summary>
/// 将DbDataReader中的所有数据转换成List>T<集合
/// </summary>
/// <typeparam name="T">DbDataReader中每条数据可以转换的数据类型</typeparam>
/// <param name="dataTable">包含有可以转换成数据类型T的DbDataReader实例</param>
/// <returns></returns>
public static IEnumerable <T> GetEntities <T>(DbDataReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
Type t = typeof(T);
if (t == SmartCrudHelper.String || t.IsValueType)
{
return(GetSimpleEntities <T>(reader));
}
else
{
//return reader.ToCollection<T>()?.ToList();
return(DapperEntityConverter.ToCollection <T>(reader));
}
}
