Question

我的代码运行正常。

 RequsitionView ConvertMethod(Models.Requisition  input)
 {
    return new RequsitionView(input);
 }

  .... 

model.Requisitions = AppModel.Requisitions.Where(x => x.ClientId == clientId).Select(ConvertMethod).ToList();

但我想简化它并用内联LINQ表达式替换ConvertMethod。

我无法弄明白该怎么做。

有任何线索吗？

P.S。我尝试了一些解决方案，但没有快乐。

即

model.Requisitions = AppModel.Requisitions
                             .Where(x => x.ClientId == clientId)
                             .Select(input => new RequsitionView(input))
                             .ToList();

顺便说一下RequsitionView班级是

public sealed class RequsitionView
    {

        public RequsitionView()
        {

        }

        public RequsitionView(Requisition requisition)
        {
            UID = requisition.UID;
            Id = requisition.Id;
            ExpectedStartTime = requisition.ExpectedStartTime;
            ExpectedEndingTime = requisition.ExpectedEndingTime;
            RealEndingTime = requisition.RealEndingTime;
            ClientId = requisition.ClientId;
            ClientType = requisition.ClientType;
            PatientId = requisition.PatientId;

Answer 1

model.Requisitions = AppModel.Requisitions
    .Where(x => x.ClientId == clientId)
    .Select(x => new RequsitionView(x))
    .ToList();

Answer 2

model.Requisitions = AppModel.Requisitions
                             .Where(x => x.ClientId == clientId)
                             .Select(input => new RequsitionView(input))
                             .ToList();

Answer 3

您的Select方法是一个预测，因此您需要做的就是将每个项目投影为新的RequisitionView，即

var views = AppModel.Requisitions
    .Where(x => x.ClientId == clientId)
    .Select(x => new RequisitionView(x))
    .ToList()

Answer 4

model.Requisitions = AppModel.Requisitions.Where(x => x.ClientId == clientId).Select(o=>new RequsitionView(o) ).ToList();

用内联LINQ表达式替换LINQ方法

4 个答案: