Combo box select default value.

Hi,
I am using Combo box to display the status of the document.
my code is
oForm = SBO_Application.Forms.Item("I8_BGU_")
                        Dim oCombo1 As SAPbouiCOM.ComboBox
                        oForm.DataSources.UserDataSources.Add("ComboSrc5", SAPbouiCOM.BoDataType.dt_SHORT_TEXT, 1)
                        'oItem = oForm.Items.Item("21") ''for accessing the combo box item
                        oCombo1 = oForm.Items.Item("21").Specific
                        '' to bind the combo box item to defined user data source
                        oCombo1.DataBind.SetBound(True, "", "ComboSrc5")
                        ''giving some static values to combobox
                        oCombo1.ValidValues.Add("Open", "Open")
                        oCombo1.ValidValues.Add("Closed", "Closed")
                        oCombo1.ValidValues.Add("Extended", "Extended")
                        ' oCombo.Select("Open")
                        oCombo1.Select("Open", SAPbouiCOM.BoSearchKey.psk_ByValue)
                        oForm.Items.Item("21").Specific.DataBInd.SetBound(True, "@I8_BGU", "U_STATUS")
                        oCombo1.Select("Open")
In this code when it reaches last lineof line it is throwing error.
Object refertence not set to any instance..
some time it is throwing
error,,
" Unble to cast COM object sbouiCom.itemeventClas to Interface Type IItemevent. This application Cal is failed.
The same logic working form for another form..
Is there any modification needed.
Please.. get to me..
mahi.

Hi Mahendra,
In case of selecting a default value in a combo, it has 2 parameters to be passed. Its as below.
objCombo.Select(0, SAPbouiCOM.BoSearchKey.psk_Index)
Replace this with proper value (1st parameter). It will work.
I find that you have already used that line. So you can remove your last line.
Best Regards,
satish. B.
Edited by: satish b on Jan 12, 2010 8:35 AM

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Please Help me to solve this issue.
Thank you
Anoop

HI
I never had a problem about combobox not using datasource
But here's the example code about combobox using datasource and not using datasource that i'm taken from one of my friend's project (VB6)
'================================================================
Public Type objectReportBA
 oComboBox As SAPbouiCOM.ComboBox
 oComboBox2 As SAPbouiCOM.ComboBox
 oUserDataSource As SAPbouiCOM.UserDataSource
End Type
Public oRBA As objectReportBA
'==================================================================
 '// example Adding a Combo Box item not using user data source
 Set oItem = oFormReportBA.Items.Add("RCB1", it_COMBO_BOX)
 oItem.Left = 70
 oItem.Width = 85
 oItem.Top = 4
 oItem.Height = 18
 oItem.DisplayDesc = True
 Set oRBA.oComboBox = oItem.Specific
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 oRBA.oComboBox.ValidValues.Add "2", "bbb"
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'==================================================================
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 oItem.Width = 163
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'======================================================================
'if you click the combobox manually using itemEvent
Private Sub SBO_Application_ItemEvent(ByVal FormUID As String, pVal As SAPbouiCOM.IItemEvent, BubbleEvent As Boolean)
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 SBO_Application.MessageBox "combo2->" & oRBA.oUserDataSource.Value '<<<< will get a descriptian = 1 or 2
 SBO_Application.MessageBox "combo2->" & oRBA.oComboBox2.Selected.Description '<<<< will get a description = aaa or bbb
 End If
 End If
 end select
end sub
'===============================================================
Hopefully this will Help You Anoop
Regards
Ancumen

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