Linq相关操作

//截取产品编号串  如001,002,003  detailObjects 是list<t>对象
string productNameStr = string.Join(",", detailObjects.Select(c => c.ProductCode).Distinct().ToArray());

string productNameStr = string.Join(",", detailObjects.Select(c => c.ProductCode).Distinct().ToList());

 

如果要 '001','002','003'  则

string productNameStr = string.Join("','", detailObjects.Select(c => c.ProductCode).Distinct().ToList()); 

productNameStr="'"+productNameStr+"'"