Question

我有一个Linq查询如下。

var DataSource = from m in product
                 select new { Class = m.Class, Id = (new Make(m.Id)).ProductName};

我实例化一个名为Make的类，并根据ProductName获取Id。一些Id是0。有没有办法可以排除所有0的Id？

Answer 1

当然，只需这样做：

var DataSource = from m in product
                 where m.Id != 0
                 select new
                 {
                     Class = m.Class,
                     Id = (new Make(m.Id)).ProductName
                 };

Answer 2

您正在寻找where子句：

where m.Id != 0

Answer 3

var DataSource = from m in product
                 where m.Id != 0
                 select new
                 {
                     Class = m.Class,
                     Id = (new Make(m.Id)).ProductName
                 };

Answer 4

试试这个：

var DataSource = from m in product
                               where m.Id != 0
                               select new { Class = m.Class, Id = (new Make(m.Id)).ProductName};

linq to object query to exclude 0

4 个答案: