How can I clear all the SAP GUI fields when I open a T-Code? - sap-gui

Question

When I open a T-Code from SAP GUI, some of the fields are pre-populated from past queries. Is it possible to enter a T-Code and all the fields in the next window to be forced blank?
I develop scripts for SAP GUI and run into problems if fields already have content from prior queries.

Answer 1

The history cannot be disabled user-wise. Period.
Either all or nobody.
If you want to disable the history go to SAPgui options into Local data setting
The history in Windows is a simple Access MDB file but it is password-protected, so you may try to crack it and delete only your user lines but it is a bunch of work.
However, I guess the history that makes you crazy is not what I described above, but SPA/GPA parameters. Check it first

Answer 2

You can empty some fields with :
""
session.findById("wnd[1]/usr/ctxtRMMG1_REF-BWTAR").Text = ""
But doesn't work all the time...

Answer 3

My method for this is to loop through all the fields (and recursively on all children elements) and set the text value of them to an empty string.
On read-only fields it throws an error and this is why "On Error Resume Next" is necessary.
Sub Start_Clearing()
'setup SAP
If Not IsObject(SAPApplication) Then
Set SapGuiAuto = GetObject("SAPGUI")
Set SAPApplication = SapGuiAuto.GetScriptingEngine
End If
If Not IsObject(Connection) Then
Set Connection = SAPApplication.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 SAPApplication, "on"
End If
Dim UserArea As Object
Set UserArea = Session.findByID("wnd[0]/usr")
Clear_Fields UserArea
End Sub
'_______________________________
Sub Clear_Fields(Area As Object)
Set SAPApplication = GetObject("SAPGUI").GetScriptingEngine
Dim Obj As Object
Dim NextArea As Object
On Error Resume Next
For i = 0 To Area.Children.Count - 1
Set Obj = Area.Children(CInt(i))
If Obj.ContainerType = True Then
If Obj.Children.Count > 0 Then
Set NextArea = SAPApplication.findByID(Obj.ID)
Clear_Fields NextArea
End If
End If
Obj.Text = ""
Next i
End Sub