基於Linq查詢的整數屬性值爲字符串屬性指定值

Question

我有一個linq query，並希望將字符串值分配給字符串屬性，該字符串屬性依賴於另一個int屬性值。我在數據庫中保存了int值，現在想要爲保存的整數值獲取適當的字符串值。下面是我的查詢..

var data = db.ProjectSetups.Select(c => new ProjectSetup 
       { 
        ProjectId = c.ProjectId, 
        Name = c.Name, 
        NameArabic = c.NameArabic, 
        StartDate = c.StartDate, 
        EndDate = c.EndDate, 
        Date = c.Date, 
        StringType = (c.Type.ToInt32() == 1 ? "Development" : "Rental").ToString(), 
        StringStatus = (c.Status == 1 ? "InProgress" : 
        c.Status == 2 ? "Completed" : 
        c.Status == 3 ? "Dividend" : "Closed"), 
        LandArea = c.LandArea, 
        SaleAmount = c.SaleAmount 

       }).ToList(); 

我有以下錯誤

實體或複雜類型 'PMISModel.ProjectSetup' 不能在LINQ構建以查詢實體

Answer 1

var data = db.ProjectSetups.ToList(); 
    data = data.Select(c => new ProjectSetup 
         { 
          ProjectId = c.ProjectId, 
          Name = c.Name, 
          NameArabic = c.NameArabic, 
          StartDate = c.StartDate, 
          EndDate = c.EndDate, 
          Date = c.Date, 
          StringType = (c.Type.ToInt32() == 1 ? "Development" : "Rental").ToString(), 
          StringStatus = (c.Status == 1 ? "InProgress" : 
          c.Status == 2 ? "Completed" : 
          c.Status == 3 ? "Dividend" : "Closed"), 
          LandArea = c.LandArea, 
          SaleAmount = c.SaleAmount 

         }).ToList();