返回基於記錄列在表FK

Question

我有顯示供應商成功的查詢，但我想現在補充的是哪家廠商已經選擇或者不列顯示（顯示爲一個複選框列）。這些選擇都存儲在包含FK簡檔，並且選擇他們用戶名VendorsSelected表。因此，噹噹前用戶查看供應商時，一些供應商會匹配而不是其他供應商。

如何修改查詢？注意：Where子句下面將完成只得到供應商，目前用戶已經選擇了，但我要的是與真/假（複選框）柱子上他們已經選擇了每個廠商中顯示的所有供應商。

public IEnumerable<BrowseVendorModel> BrowseVendors() 
{ 
    IQueryable<BrowseVendorModel> viewModel = _db.VendorProfiles 
     .Include("VendorsSelected") 
     .Select(s => new BrowseVendorModel 
     { 
      ProfileID = s.ProfileID, 
      Name = s.Name, 
      CompanyName = s.CompanyName, 
      City = s.City, 
      State = s.State, 
      DateCreated = s.DateCreated 
     }) 
     .Where(x => x.VendorsSelected.Select(s => s.UserName).Contains(HttpContext.Current.User.Identity.Name)) 
     .OrderBy(v => v.ProfileID); 

    return viewModel; 
} 

Answer 1

屬性Selected（boolean）添加到瀏覽模式：

public IEnumerable<BrowseVendorModel> BrowseVendors() 
{ 
    IQueryable<BrowseVendorModel> viewModel = _db.VendorProfiles 
     .Include("VendorsSelected") 
     .Select(s => new BrowseVendorModel 
     { 
      ProfileID = s.ProfileID, 
      Name = s.Name, 
      CompanyName = s.CompanyName, 
      City = s.City, 
      State = s.State, 
      DateCreated = s.DateCreated, 
      Selected = x.VendorsSelected.Select(s => s.UserName) 
         .Contains(HttpContext.Current.User.Identity.Name) 
     }) 
     .OrderBy(v => v.ProfileID); 

    return viewModel; 
}