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ASCII Key press problem

Posted on 2003-03-25
Medium Priority
Last Modified: 2008-02-01
I am having a problem with some code I have.  On my main search screen I have setup code to copy specific data to the clip board on certain ASCII key presses.  This works fine if the listview item has focus (ie. Blue) but if I open a record and come back to it the listview item is ghosted.  If the user does not click on the item and presses one of my defined buttons I get a runtime 91 error as it is not the "ActiveControl".

If I put a "On Error Resume Next" under the Clipboard.Clear then it stops the error but doesn't cycle throught the code correctly. eg If you press the A key it cycles throught the U code then exits.  

How can I remedy this without simply telling the user to highlight the record before using these keys.

Original code below:

Private Sub Form_KeyPress(KeyAscii As Integer)
    If Screen.ActiveControl.Name = "lvwSearch" And (KeyAscii = 117 Or KeyAscii = 85) Then
        Clipboard.SetText (Me.lvwSearch.SelectedItem.SubItems(7)) 'UMRN (U, u)
    ElseIf Screen.ActiveControl.Name = "lvwSearch" And (KeyAscii = 97 Or KeyAscii = 65) Then
        Clipboard.SetText (Me.lvwSearch.SelectedItem.SubItems(3)) 'ACC NBR (A, a)
    ElseIf Screen.ActiveControl.Name = "lvwSearch" And (KeyAscii = 80 Or KeyAscii = 112) Then
        Clipboard.SetText (Me.lvwSearch.SelectedItem.SubItems(13)) 'Patient ID (P,p)
    ElseIf Screen.ActiveControl.Name = "lvwSearch" And (KeyAscii = 88 Or KeyAscii = 120) Then

        If Me.lvwSearch.SelectedItem.SubItems(14) <> "" Then
            Clipboard.SetText "intpatdetid = " & (Me.lvwSearch.SelectedItem.SubItems(14)) 'PatDetID (X,x)
        ElseIf Me.lvwSearch.SelectedItem.SubItems(15) <> "" Then
            Clipboard.SetText "intreferralid = " & (Me.lvwSearch.SelectedItem.SubItems(15)) 'ReferralID (X,x)
            Clipboard.SetText "INTEMERGID = " & (Me.lvwSearch.SelectedItem.SubItems(16)) 'EmergID (X,x)
        End If

    End If

    If KeyAscii = vbKeyReturn Then
        SendKeys "{Tab}"
        KeyAscii = 0
    End If
End Sub

Question by:thurst

Accepted Solution

robertlees earned 80 total points
ID: 8207757
The listview item is ghosted because the control doesn't have the focus, but you have set the HideSelection to True.

By testing Screen.ActiveControl.Name you are assuming it will have the focus.

Firstly why not try lvwSearch.SetFocus during Form_Activate - ie, when the form gets activated again after returning from another form, you give focus back to lvwSearch.

Alternatively, can you just test that a selection has been made, without requiring that it have the focus. That is, replace all your If Screen.ActiveControl.Name = "lvwSearch" tests with If Not (lvwSearch.SelectedItem Is Nothing)


Expert Comment

ID: 8531595
Hi thurst,
This old question (QID 20563203) needs to be finalized -- accept an answer, split points, or get a refund.  Please see http://www.cityofangels.com/Experts/Closing.htm for information and options.

Expert Comment

ID: 9441032
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:

 -->Accept robertlees's comment as Answer

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