/// <summary>
/// 将实体类容器转换为对象列表
/// <example>
/// <code>
/// <![CDATA[
/// OQL q=OQL.From(entity1)
/// .Join(entity2).On(entity1.PK,entity2.FK)
/// .Select(entity1.Field1,entity2.Field2)
/// .End;
/// EntityContainer ec=new EntityContainer(q);
/// var list=ec.ToObjectList( e =>
/// {
/// return new {
/// Property1=e.GetItemValue<int>(0),
/// Property2=e.GetItemValue<string>(1)
/// };
/// });
///
/// foreache(var item in list)
/// {
/// Console.WriteLine("Property1={0},Property2={1}",item.Property1,item.Property2);
/// }
/// ]]>
/// </code>
/// </example>
/// </summary>
/// <typeparam name="TResult">结果的列表元素类型</typeparam>
/// <param name="fun">容器结果委托函数</param>
/// <returns>对象列表</returns>
public IList <TResult> ToObjectList <TResult>(ECResultFunc <TResult> fun) where TResult : class
{
if (this.Values == null)
{
this.Execute();
}
List <TResult> resultList = new List <TResult>();
if (this.Values != null && this.fieldNames != null)
{
foreach (object[] itemValues in this.Values)
{
this.currValue = itemValues;
TResult t = fun(this);
resultList.Add(t);
}
return(resultList);
}
else
{
throw new Exception("EntityContainer 错误，执行查询没有返回任何行。");
}
}
/// <summary>
/// 直接返回实体类列表查询结果
/// <example>
/// <code>
/// <![CDATA[
/// var list= OQL.From(entity1)
/// .Join(entity2).On(entity1.PK,entity2.FK)
/// .Select(entity1.Field1,entity2.Field2)
/// .End
/// .ToObjectList( e =>
/// {
/// return new MyViewModel{
/// Property1=e.GetItemValue<int>(0),
/// Property2=e.GetItemValue<string>(1)
/// };
/// });
///
/// foreache(MyViewModel item in list)
/// {
/// Console.WriteLine("Property1={0},Property2={1}",item.Property1,item.Property2);
/// }
/// ]]>
/// </code>
/// </example>
/// </summary>
/// <param name="q">OQL对象</param>
/// <param name="ecFun">结果对象映射委托</param>
/// <typeparam name="TResult">结果元素类型</typeparam>
/// <returns>实体类列表</returns>
public static IList <TResult> ToObjectList <TResult>(this OQL q, ECResultFunc <TResult> ecFun) where TResult : class
{
EntityContainer ec = new EntityContainer(q);
return(ec.ToObjectList <TResult>(ecFun));
}
