How to use BO.FillMultipleDataTables for parent, child, grandchild tables?


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Edhy Rijo
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I am trying to fill the data for 3 BOs which will be used in a report, I am trying to use the BO.FillMultipleDataTables to get the data, but when creating the SQL for the grand child, I don't know how to reference the PK value in the SQL statement.

Here my code for Parent ->Child:

Public Shared Function ServiceCallMaintenance_AllData(ByVal PK_ServiceCalls As Integer, ByVal includeServiceCallRecord As Boolean) As SqlCommand

     '-- Establish Locals

     Dim cmd As New SqlCommand()

     '-- Determine if the Service Call record will be included

     If includeServiceCallRecord Then

          cmd.CommandText = "SELECT dbo.ServiceCalls.* FROM dbo.ServiceCalls WHERE dbo.ServiceCalls.PK_ServiceCalls = @PK_ServiceCalls;"

     End If

     '-- Add the Appliances query for the selected Service Call, ordered by the Appliance Service Date.

     cmd.CommandText &= "SELECT dbo.SC_Appliances.* FROM dbo.ServiceCalls " & _

"INNER JOIN dbo.SC_Appliances ON (dbo.ServiceCalls.PK_ServiceCalls = dbo.SC_Appliances.FK_ServiceCalls) " & _

"WHERE (dbo.SC_Appliances.FK_ServiceCalls = @PK_ServiceCalls)" & _

"ORDER BY dbo.SC_Appliances.ServicedDate;"

     '-- Create the parms

     cmd.Parameters.AddWithValue("@PK_ServiceCalls", PK_ServiceCalls).SqlDbType = SqlDbType.Int

     '-- Return the results

     Return cmd

End Function

This code works fine, but if I want to add a grandchild table SC_AppliancesItems which is related to SC_Appliances I don't know to make a reference to SC_Appliances.PK_SC_Appliances in the SQL statement to get all related records to fill the grandchild BO.

How can I accomplish that?

Please see attached relation diagram.

Edhy Rijo

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Edhy Rijo
E
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Excellent guys, I have been trying to stay away of store procedures, but guess it is time to jump in and beat the fear Hehe

You both gave me enough to material to start working on this. Thanks!

Edhy Rijo

Edhy Rijo
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Hi guys,

Just to show you how your help pay off Tongue.  Please take a look at the attached image to see my 1st RSS report.  Thanks again for your continued support!

Edhy Rijo

Trent Taylor
Trent Taylor
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Cool...looks good! Smile
Ivan George Borges
Ivan George Borges
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Bacana! Cool
GO

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