将IQueryable列表转换为通用列表？

Question

我正在尝试调用GetScanningLogOnSettings()，查询ScanningDepartments表以获取部门，然后创建ApplicationLogOnModel的实例，将查询结果分配给{{中的变量1}}，并返回结果。

ApplicationLogOnModel

它给了我：

  

“无法隐式转换类型   private ApplicationLogOnModel GetScanningLogOnSettings() { var mesEntity = new MESEntities(); var departments = from dept in mesEntity.ScanningDepartments select dept.Department.ToList(); ApplicationLogOnModel depts = new ApplicationLogOnModel() { Department = departments }; return depts; } 来   'System.Linq.IQueryable<System.Collections.Generic.List<char>>

尝试转换到列表并遇到一些麻烦。

Answer 1

你遗漏了一些括号：

var departments = (from dept in mesEntity.ScanningDepartments
                   select dept.Department).ToList();

您的代码在ToList()上调用dept.Department，而不是整个查询。