class ProductComparare : IEqualityComparer<YEWULIANG>
{
private Func<YEWULIANG, object> _funcDistinct;
public ProductComparare(Func<YEWULIANG, object> funcDistinct)
{
this._funcDistinct = funcDistinct;
}
public bool Equals(YEWULIANG x, YEWULIANG y)
{
return _funcDistinct(x).Equals(_funcDistinct(y));
}
public int GetHashCode(YEWULIANG obj) { return this._funcDistinct(obj).GetHashCode(); }
}
使用如下:
List<YEWULIANG> list=new List<YEWULIANG> (){
new YEWULIANG {name="1",age=12} ,
new YEWULIANG {name="1",age=13} ,
new YEWULIANG {name="2",age=14} ,
}
//使用后
var listCNAME = list.Distinct<YEWULIANG>(new ProductComparare(m => m.c_name)).ToList();
listCNAME里面的对象为
new YEWULIANG {name="1",age=12} ,
new YEWULIANG {name="2",age=14} ,
原文：http://www.cnblogs.com/gaocong/p/5382403.html