how to declare the window with zero values - vba

Question

I have a situation when a table in SAP does not have fields and I have to go back to the main table and start on a next iteration. I do not know how to declare this event in VBA. In other cases, I just double-click on lines. This table calls a debug window and script stops. Can anyone give a hint on how to stop the debugger mode and go to the next iteration? My problem is I do not know how to declare such an event within VBA.
TBL with zero lines
Sub Looping_Tree()
Dim Application, Connection, Session As Object
Set SapGuiAuto = GetObject("SAPGUI")
Set Application = SapGuiAuto.GetScriptingEngine
Set Connection = Application.Children(0)
Set Session = Connection.Children(0)
If Not IsObject(Application) Then
Set SapGuiAuto = GetObject("SAPGUI")
Set Application = SapGuiAuto.GetScriptingEngine
End If
If Not IsObject(Connection) Then
Set Connection = Application.Children(0)
End If
If Not IsObject(Session) Then
Set Session = Connection.Children(0)
End If
If IsObject(WScript) Then
WScript.ConnectObject Session, "on"
WScript.ConnectObject Application, "on"
End If
Session.findById("wnd[0]").maximize
Session.findById("wnd[0]/tbar[0]/okcd").Text = "/nCT04"
Session.findById("wnd[0]/tbar[0]/btn[0]").press
Set objExcel = GetObject(, "Excel.Application")
Set objSheet = objExcel.ActiveWorkbook.ActiveSheet
COL3 = Trim(CStr(objSheet.Range("C2").Value)) 'Column3
COL4 = Trim(CStr(objSheet.Range("D2").Value)) 'Column4
Session.findById("wnd[0]/usr/subCHARACT:SAPLCTMV:2000/subHEADER:SAPLCTMV:1100/ctxtRCTAV-ATNAM").Text = COL3
Session.findById("wnd[0]/usr/subCHARACT:SAPLCTMV:2000/subHEADER:SAPLCTMV:1100/ctxtRCTAV-ATNAM").caretPosition = 13
Session.findById("wnd[0]/usr/subCHARACT:SAPLCTMV:2000/subHEADER:SAPLCTMV:1100/btnDISPLAY").press
Session.findById("wnd[0]/mbar/menu[4]/menu[0]").Select
Session.findById("wnd[0]/usr/chkGF_DEP").Selected = True
Session.findById("wnd[0]/usr/ctxtCAWN-ATWRT").Text = COL4
Session.findById("wnd[0]/usr/chkGF_DEP").SetFocus
Session.findById("wnd[0]/tbar[1]/btn[8]").press
Dim myTree As Object
Dim RowCount, rows, i, j As Integer
Set myTree = Session.findById("wnd[0]/usr/cntlUSAGE_TREE_CONTAINER/shellcont/shell/shellcont[1]/shell[1]")
RowCount = myTree.GetColumnCol(myTree.GetColumnNames.Item(0)).Length
rows = RowCount - 1
For i = 5 To rows
j = i - 3
myTree.selectedNode Right(" " + CStr(i), 11)
myTree.doubleClickNode Right(" " + CStr(i), 11)
Session.findById("wnd[0]/mbar/menu[4]/menu[0]").Select
If Session.ActiveWindow.Name = "wnd[1]" Then
'Session.findById("wnd[1]/tbar[0]/btn[0]").press
Session.findById("wnd[1]").sendVKey 0
Session.findById("wnd[0]/tbar[0]/btn[3]").press
GoTo NextIteration
End If
'WE REACHED THE TABLE
Session.findById("wnd[0]/usr/lbl[6,8]").SetFocus
Session.findById("wnd[0]/usr/lbl[6,8]").caretPosition = 1
Session.findById("wnd[0]").sendVKey 2
Session.findById("wnd[0]/usr/tabsTS_ITEM/tabpPHPT/ssubSUBPAGE:SAPLCSDI:0830/ctxtRC29P-IDNRK").SetFocus
Session.findById("wnd[0]/usr/tabsTS_ITEM/tabpPHPT/ssubSUBPAGE:SAPLCSDI:0830/ctxtRC29P-IDNRK").caretPosition = 5
Session.findById("wnd[0]").sendVKey 2
Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27").Select
Session.findById("wnd[1]/usr/ctxtRMMG1-WERKS").Text = "0600"
Session.findById("wnd[1]/usr/ctxtRMMG1-WERKS").caretPosition = 4
Session.findById("wnd[1]/tbar[0]/btn[0]").press
If Session.ActiveWindow.Name = "wnd[2]" Then
'Session.findById("wnd[2]/tbar[0]/btn[0]").press
Session.findById("wnd[2]").sendVKey 0
End If
Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27/ssubTABFRA1:SAPLMGMM:2000/subSUB3:SAPLMGD1:2953/txtMBEW-STPRS").SetFocus
Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27/ssubTABFRA1:SAPLMGMM:2000/subSUB3:SAPLMGD1:2953/txtMBEW-STPRS").caretPosition = 0
cost = Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27/ssubTABFRA1:SAPLMGMM:2000/subSUB3:SAPLMGD1:2953/txtMBEW-STPRS").Text
Range("G" & j) = cost 'Returns the most recent cost of a production part
Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27/ssubTABFRA1:SAPLMGMM:2000/subSUB1:SAPLMGD1:1009/ctxtRMMG1-MATNR").SetFocus
Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27/ssubTABFRA1:SAPLMGMM:2000/subSUB1:SAPLMGD1:1009/ctxtRMMG1-MATNR").caretPosition = 7
material = Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27/ssubTABFRA1:SAPLMGMM:2000/subSUB1:SAPLMGD1:1009/ctxtRMMG1-MATNR").Text
Range("E" & j) = material 'Returns a production part number
Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27/ssubTABFRA1:SAPLMGMM:2000/subSUB1:SAPLMGD1:1009/txtMAKT-MAKTX").SetFocus
Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27/ssubTABFRA1:SAPLMGMM:2000/subSUB1:SAPLMGD1:1009/txtMAKT-MAKTX").caretPosition = 8
description = Session.findById("wnd[0]/usr/tabsTABSPR1/tabpSP27/ssubTABFRA1:SAPLMGMM:2000/subSUB1:SAPLMGD1:1009/txtMAKT-MAKTX").Text
Range("F" & j) = description 'Returns production part description
Session.findById("wnd[0]/tbar[0]/btn[3]").press
Session.findById("wnd[0]/tbar[0]/btn[3]").press
Session.findById("wnd[0]/tbar[0]/btn[3]").press
Session.findById("wnd[0]/tbar[0]/btn[3]").press
NextIteration:
Next i
End Sub

Answer 1

From the link I found out the following variables for you:
...
'WE REACHED THE TABLE
set sapusr = session.findById("wnd[0]/usr")
sapusr.VerticalScrollbar.Position = 0
childcount = sapusr.Children.Count
lastchildID = sapusr.Children(childcount - 1).ID
visrow = CLng(Right(Left(lastchildID, Len(lastchildID) - 1), _
Len(lastchildID) - InStr(1, lastchildID, ",") - 1))
totscrol = sapusr.VerticalScrollbar.Maximum
'msgbox lastchildID
'msgbox ChildCount
'msgbox totscrol
'msgbox visrow
If visrow > 7 Then
Session.findById("wnd[0]/usr/lbl[6,8]").SetFocus
Session.findById("wnd[0]/usr/lbl[6,8]").caretPosition = 1
Else
Session.findById("wnd[0]/tbar[0]/btn[3]").press
Session.findById("wnd[0]/tbar[0]/btn[3]").press
GoTo NextIteration
End If
...
Regards,
ScriptMan