SAP B1: How to Populate Combo Box Values Using SDK

Introduction:

In SAP Business One, combo boxes offer a convenient way to select predefined values within the user interface. Today, we'll delve into the SAP Business One Software Development Kit (SDK) to understand how to populate and fill a combo box dynamically.

Requirements:

SAP Business One SDK installed and configured.

Familiarity with C# or VB.NET programming languages.

Step-by-Step Guide:

1. Connect to SAP B1 Company Database

Ensure that your SDK environment is set up and correctly connected to the SAP B1 company database.

2. Access the Combo Box Object

Retrieve the combo box object you want to populate with values. Identify the specific combo box control by its unique ID or name.

3. Define Values to Populate

Prepare the values you wish to fill into the combo box. These can be retrieved from a database, predefined list, or generated dynamically.

4. Populate Combo Box with Values

 Public Sub FillComboBoxValue(ByVal oApp As Object, ByVal aForm As SAPbouiCOM.Form, ByVal aComUId As Object, ByVal strQuery As String, ByVal blnDefNew As Boolean)
        '********************************************
        '' DECLARE LOCAL VARIABLES'
        '********************************************
        Dim aCombo As SAPbouiCOM.ComboBox = Nothing
        Dim oRS As SAPbobsCOM.Recordset = Nothing
        '********************************************
        oApp = New ClsSAPConn
        '********************************************
        oRS = oApp.SAPCompany.GetBusinessObject(SAPbobsCOM.BoObjectTypes.BoRecordset)
        aCombo = aForm.Items.Item(aComUId).Specific
        '******************************************
        Try

            oRS.DoQuery(strQuery)
            '' To Avoid Valid Value Issue
            If aCombo.ValidValues.Count > 0 Then
                For i As Integer = 1 To aCombo.ValidValues.Count
                    aCombo.ValidValues.Remove(0, SAPbouiCOM.BoSearchKey.psk_Index)
                Next
            End If
            If oRS.RecordCount > 0 Then
                While Not oRS.EoF
                    aCombo.ValidValues.Add(oRS.Fields.Item(0).Value, oRS.Fields.Item(1).Value)
                    oRS.MoveNext()
                End While
            End If
            Select Case blnDefNew
                Case True
                    aCombo.ValidValues.Add("-9", "DEFINE NEW")
                Case False
                    aCombo.ValidValues.Add("", "")
            End Select
            aCombo.Item.DisplayDesc = True


        Catch ex As Exception
        Finally
            If aCombo IsNot Nothing Then
                aCombo = Nothing
            End If
            If oApp IsNot Nothing Then
                oApp = Nothing
            End If
        End Try
    End Sub