c# - linq 到对象查询以排除 0

Question

我有一个如下的 Linq 查询。

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

我实例化了一个名为Make并获取ProductName基于Id. 一些 ID 为 0。有没有办法可以排除所有为 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

您正在寻找以下where条款：

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};