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Combobox display selection on cliking

Posted on 2002-03-26
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305 Views
Last Modified: 2010-05-02
kcm,i try to include the reference to the database,and it worked,it was able to display the items plus the selction of the combo box items,but when i click on the next and previous buttons ,it displays tiext instead of values on the textbox.
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Question by:humbk2002
7 Comments
 
LVL 43

Expert Comment

by:TimCottee
ID: 6896142
You don't need to reopen the database and recordset, if you do then the movenext will not have any effect:

Private Sub NextBtn_Click()
Set DB = OpenDatabase("Z:\Project\FinalProject(ExpensesMonitoringSystem).mdb")
Set RS = DB.OpenRecordset("Expense Category")

Remove these lines and try again.
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LVL 44

Expert Comment

by:Arthur_Wood
ID: 6896218
you are setting Text4 to be values in the recordset fields, but ONLY THE LAST value is actually the one that will be displayed.  Each time you assign a value to a texctbox, THAT value REPLACES (completely replaces) whatever value was there before.

from this code:

Private Sub Form_Load()
Set DB = OpenDatabase("Z:\Project\FinalProject(ExpensesMonitoringSystem).mdb")
Set RS = DB.OpenRecordset("Expense Category")
Combo1.AddItem "Telephone Bills"
Combo1.AddItem "Transportation"
Combo1.AddItem "Electricity Bills"
Combo1.AddItem "Payroll Bills"
Combo1.AddItem "Stationery"
Text4.Text = RS!Payroll
Text4.Text = RS!TelephoneBill
Text4.Text = RS!Transportation
Text4.Text = RS!ElectricityBill
Text4.Text = RS!Stationery
Call List1.AddItem("Date : " & Date)
Call List1.AddItem("Time : " & Time)
End Sub


Text4 will end up with ONLY the value from

Text4.Text = RS!Stationery

the preceding 4 lines are TOTALLY USELESS, and accomplish ABSOLUTELY nothing.

What are you trying to show in Text4? (by the way, it is a very GOOD idea to name text boxes for what they are REALLY showing, rather than to use the default name that Access assigns to them. So is Text4 showing an Amount?, then name it txtAmount.  That way you program has some sembelance of readability, and you do not need to remember what Text4 is used for.)

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LVL 5

Expert Comment

by:kcm76
ID: 6896387
HI humbk2k2


pls Try out this code
open the Recordset in the Formload event.
DO NOT REOPEN IT AGAIN IN CMD_NEXT OR CMD_PREV event.

Dim strFldName as String

Private Sub Form_Load()
Set DB = OpenDatabase("Z:\Project\FinalProject(ExpensesMonitoringSystem).mdb")
Set RS = DB.OpenRecordset("Expense Category")
Combo1.AddItem "Telephone Bills"
Combo1.AddItem "Transportation"
Combo1.AddItem "Electricity Bills"
Combo1.AddItem "Payroll Bills"
Combo1.AddItem "Stationery
End Sub


Private Sub Combo1_Click()
strFldName = Combo1.List(Combo1.ListIndex)
Text4.Text = FillTextValue(strFldName)
End Sub

Private Sub cmdPrev_Click()
if not rs.BOF then
  rs.MoveNext
  text4.Text = strFldName
else
  Msgbox "Beginning of File reached"
end if
End Sub



Private Sub cmdNext_Click()
if not rs.EOF then
  rs.MoveNext
  text4.Text = strFldName
else
  Msgbox "End of File reached"
end if
End Sub


Private Function FillTextValue(strVal as String) as String
Select Case strVal
    Case "Telephone Bills"
        FillTextValue = rs("TelephoneBill")
    Case "Transportation"
        FillTextValue = rs("Transportation")
    Case "Electricity Bills"
        FillTextValue = rs("ElectricityBill")
End Select
End function

ALL THE BEST

KCM
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Author Comment

by:humbk2002
ID: 6898808
kcm76,your code there is an error message thats displayed when i try to make a selection on the combo box items.
There is a compilation error thus:

"ByRef argument type mismatch.:

Remember i want to get the infomation to be displayed on the textbox to come from a database,and the figure to be displayed on the textbox(text4),has to be displayed whenever i make a selection on the combobox,afters selecting,the next button and the previous buttons should allow me to go from one item to another on the list.
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LVL 1

Expert Comment

by:Moondancer
ID: 7017042
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Expert Comment

by:twalgrave
ID: 7754732
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