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[英]how to get the result from stored procedure in entity framework + database first
[英]How use “Select” Result from Stored procedure in Entity FrameWork
我有一個如下所示的存儲過程:
ALTER PROCEDURE [dbo].[Save_Customer](@PK int , @Name nvarchar(30) , @Address nvarchar(100) , @CustomerGrp_FK int)
AS
SET NOCOUNT ON;
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
BEGIN TRAN
BEGIN TRY
IF (@PK = -1)
BEGIN
INSERT INTO dbo.[Customer]
SELECT @Name , @Address , @CustomerGrp_FK
SELECT SCOPE_IDENTITY () as IdentityPK
END
ELSE
BEGIN
UPDATE Customer
SET Name = @Name ,Address = @Address ,CustomerGrp_FK = @CustomerGrp_FK
WHERE PK= @PK
END
要將SELECT SCOPE_IDENTITY () as IdentityPK
,我創建了以下類:
public class Save_Customer_MyResult
{
public int Identity { get; set; }
}
然后在EntityContext類中插入以下代碼:
public DbSet<Save_Customer_MyResult> Save_CustomerDB { get; set; }
public virtual Save_Customer_MyResult Save_Customer1(Nullable<int> pK, string name, string address, Nullable<int> customerGrp_FK)
{
return this.Database.SqlQuery<Save_Customer_MyResult>("Save_Customer @PK, @Name, @Address, @CustomerGrp_FK", new System.Data.SqlClient.SqlParameter("PK", pK)
, new System.Data.SqlClient.SqlParameter("Name", name)
, new System.Data.SqlClient.SqlParameter("Address", address)
, new System.Data.SqlClient.SqlParameter("CustomerGrp_FK", customerGrp_FK)).First<Save_Customer_MyResult>();
}
現在在我的演示文稿圖層中。 當我調用方法時。 Identity
字段為0。:(
Customer.Save_Customer_MyResult scr=customercontext.Save_Customer1(-1, txt_Name.Text, txt_Address.Text, Int32.Parse(cmb_GroupName.SelectedValue.ToString()));
MessageBox.Show(scr.Identity .ToString());
1-根據本文 。 我剛剛做了一個新的Complex Type
。
2- entity
stored procedure mapping
3-然后:
IEnumerable<Customer.Save_Customer_Result > s= customercontext.Save_Customer(-1, txt_Name.Text, txt_Address.Text,Int32 .Parse( cmb_GroupName.SelectedValue.ToString()));
MessageBox.Show(s.First<Customer.Save_Customer_Result>().IdentityPK .ToString());
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