日期:2014-05-17 浏览次数:20615 次
class Pet
{
public string Name{get;set;}
public int Age{get;set;}
}
void Main()
{
Pet[] pets = { new Pet { Name="Tim", Age=18 },
new Pet { Name="Allen", Age=22 },
new Pet { Name="Bill", Age=20 } };
//如果我们想根据Age进行排序 很容易想到这样来写:
var query= from p in pets
orderby p.Age
select p;
query.ToList().ForEach(q=>Console.WriteLine(q.Name +" "+q.Age));
/* 得到结果:
Tim 18
Bill 20
Allen 22
*/
}
//但是有时项目内有多个排序条件 如有时要根据Name排序 有时要根据Age排序
//这时我们就要用到动态排序:
void Main()
{
Pet[] pets = { new Pet { Name="Tim", Age=18 },
new Pet { Name="Allen", Age=22 },
new Pet { Name="Bill", Age=20 } };
Console.WriteLine("Before Orderby:/r/n");
pets.ToList().ForEach(p=>Console.WriteLine(p.Name +" "+p.Age));
var query= from p in pets
orderby GetPropertyValue(p,"Age")
select p;
Console.WriteLine("/r/nAfter Orderby:/r/n");
query.ToList().ForEach(q=>Console.WriteLine(q.Name +