I'm trying to add records to a local database using Visual Studio 2015 and linq to sql commands, but I get an error IDENTITY_INSERT is set to OFF.
I'm not inserting a value for the primary key and Identity Specification is set to True.
This is the generated script file:
CREATE TABLE [dbo].[MONTE_CARLO] (
[PK] INT IDENTITY (1, 1) NOT NULL,
[ID] INT NOT NULL,
[BOOK_COMP] NCHAR (10) NOT NULL,
[GREEK] NCHAR (10) NOT NULL,
[DP1] DECIMAL (18, 6) NOT NULL,
[DP2] DECIMAL (18, 6) NOT NULL,
[DP3] DECIMAL (18, 6) NOT NULL,
[DP4] DECIMAL (18, 6) NOT NULL,
[DP5] DECIMAL (18, 6) NOT NULL,
[DP6] DECIMAL (18, 6) NOT NULL,
[DP7] DECIMAL (18, 6) NOT NULL,
[DP8] DECIMAL (18, 6) NOT NULL,
[DP9] DECIMAL (18, 6) NOT NULL,
[DP10] DECIMAL (18, 6) NOT NULL,
[DP11] DECIMAL (18, 6) NOT NULL,
[DP12] DECIMAL (18, 6) NOT NULL,
[DP13] DECIMAL (18, 6) NOT NULL,
[DP14] DECIMAL (18, 6) NOT NULL,
[DP15] DECIMAL (18, 6) NOT NULL,
[DP16] DECIMAL (18, 6) NOT NULL,
[DP17] DECIMAL (18, 6) NOT NULL,
[DP18] DECIMAL (18, 6) NOT NULL,
[DP19] DECIMAL (18, 6) NOT NULL,
[DP20] DECIMAL (18, 6) NOT NULL,
[DP21] DECIMAL (18, 6) NOT NULL,
CONSTRAINT [PK_MONTE_CARLO] PRIMARY KEY CLUSTERED ([PK] ASC)
);
This is the code to update the datatable. I'm passing a dictionary (dct)to the function which handles the updating.
Dim mcQuery = From updtMC In DATA.MONTE_CARLOs 'ID exists so update data
Where updtMC.ID = CStr(dct("ID")) And updtMC.BOOK_COMP = CStr(dct("BOOK_COMP")) And updtMC.GREEK = CStr(dct("GREEK"))
Select updtMC
For Each updtMC As MONTE_CARLO In mcQuery
updtMC.ID = dct("ID")
updtMC.BOOK_COMP = dct("BOOK_COMP")
updtMC.GREEK = dct("GREEK")
updtMC.DP1 = dct("DP1")
updtMC.DP2 = dct("DP2")
updtMC.DP3 = dct("DP3")
updtMC.DP4 = dct("DP4")
updtMC.DP5 = dct("DP5")
updtMC.DP6 = dct("DP6")
updtMC.DP7 = dct("DP7")
updtMC.DP8 = dct("DP8")
updtMC.DP9 = dct("DP9")
updtMC.DP10 = dct("DP10")
updtMC.DP11 = dct("DP11")
updtMC.DP12 = dct("DP12")
updtMC.DP13 = dct("DP13")
updtMC.DP14 = dct("DP14")
updtMC.DP15 = dct("DP15")
updtMC.DP16 = dct("DP16")
updtMC.DP17 = dct("DP17")
updtMC.DP18 = dct("DP18")
updtMC.DP19 = dct("DP19")
updtMC.DP20 = dct("DP20")
updtMC.DP21 = dct("DP21")
Next
End If
DATA.SubmitChanges()
linq to sql files for Monte_Carlo:
<Global.System.Data.Linq.Mapping.TableAttribute(Name:="dbo.MONTE_CARLO")> _
Partial Public Class MONTE_CARLO
Implements System.ComponentModel.INotifyPropertyChanging, System.ComponentModel.INotifyPropertyChanged
Private Shared emptyChangingEventArgs As PropertyChangingEventArgs = New PropertyChangingEventArgs(String.Empty)
Private _PK As Integer
Private _ID As Integer
Private _BOOK_COMP As String
Private _GREEK As String
Private _DP1 As Decimal
Private _DP2 As Decimal
Private _DP3 As Decimal
Private _DP4 As Decimal
Private _DP5 As Decimal
Private _DP6 As Decimal
Private _DP7 As Decimal
Private _DP8 As Decimal
Private _DP9 As Decimal
Private _DP10 As Decimal
Private _DP11 As Decimal
Private _DP12 As Decimal
Private _DP13 As Decimal
Private _DP14 As Decimal
Private _DP15 As Decimal
Private _DP16 As Decimal
Private _DP17 As Decimal
Private _DP18 As Decimal
Private _DP19 As Decimal
Private _DP20 As Decimal
Private _DP21 As Decimal
Private _BOOK As EntityRef(Of BOOK)
Based on naming conventions in entity framework columns with name Id are considered as Id, probably you are having this problem. Try to change the name of field ID.