.net 如何合并两个EF查询?
我必须查询,并且我需要将两者合并为一个结果,我已经尝试使用Union和Concat,但没有成功:.net 如何合并两个EF查询?,.net,vb.net,entity-framework,.net,Vb.net,Entity Framework,我必须查询,并且我需要将两者合并为一个结果,我已经尝试使用Union和Concat,但没有成功: Dim PayPalPurchases = (From p In ctx.PayPalAPI Where p.Users.Email = userEmail Select KeyPay = p.pay_key, PurchaseDate = p.payment_request_dat
Dim PayPalPurchases = (From p In ctx.PayPalAPI Where p.Users.Email = userEmail Select
KeyPay = p.pay_key,
PurchaseDate = p.payment_request_date,
Result = p.status,
item_sku = p.memo,
price = p.transaction_amount).ToList
Dim licenze = (From lic In ctx.Licenses Where lic.Users.Email = userEmail
Select KeyPay = lic.Note,
PurchaseDate = lic.Date,
Result = "Free",
item_sku = lic.Sku,
price = 0)
创建一个类,每个查询将结果存储到该类中:
Public Class ResultData
Public KeyPay As String
Public PurchaseDate As String
Public Result As String
Public item_sku As String
Public price As String
End Class
然后创建一个包含这两个结果的列表
Dim PayPalPurchases = (From p In ctx.PayPalAPI
Where p.Users.Email = userEmail
Select New ResultData With
{
.KeyPay = p.pay_key,
.PurchaseDate = p.payment_request_date,
.Result = p.status,
.item_sku = p.memo,
.price = p.transaction_amount
}).ToList
Dim licenze = (From lic In ctx.Licenses
Where lic.Users.Email = userEmail
Select New ResultData With
{
.KeyPay = lic.Note,
.PurchaseDate = lic.Date,
.Result = "Free",
.item_sku = lic.Sku,
.price = 0
}).toList
Dim combinedList As List(Of ResultData)
combinedList.AddRange(PayPalPurchases)
combinedList.AddRange(licenze)