从自定义列表中选择多个项目

Question

这是获取部门列表并在顶部添加自定义“全选”的代码

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IList<Division> divisionList = divisionService.GetAllDivisions();
divisionList.Insert(0, new Division() { Code = "ALL", CodeName = "Select all" });

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然后根据代码过滤，我在newList中得到1个项目

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var newList = divisionList.Where(x => x.Code == "01" ).ToList();

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问题是如何选择多个项目并将其存储在newList中，包括“全选” 用这个语句得到一个空列表，

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var newList = divisionList.Where(x => x.Code == "01" && x.Code == "02" ).ToList(); 

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Answer 1

我认为你想要一个合乎逻辑的或不合乎逻辑的和......像这样：

var newList = divisionList.Where(x => x.Code == "01" || 
                                      x.Code == "02" || 
                                      x.Code == "All" ).ToList();