Help! Me : how to transfer focus to the previous control vb.net

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Hi all:

who can help me solve this issue, my issue is how to transfer focus to the previous control

Posted 7-May-12 19:49pm

killerqx1

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Sergey Alexandrovich Kryukov · Answer 1 · 2012-05-07T19:58:00

Solution 1

For System.Windows.Forms.Control, use the method GetNextControl. For the obtained control, call Focus. Please see:
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.getnextcontrol.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.focus.aspx[^].

Don't blame me if I answered a wrong question. In this case, this is your problem: you did not tag what application type or UI library do you use: WPF? Forms? Silverlight? ASP.NET? What?

Next time, always tag such thing in your question. Moreover, you could find the answer in MSDN much sooner then asking this question and waiting for the answer.

[EDIT]

For WPF, you can use System.Windows.FrameworkElement.PredictFocus in nearly the same way. Please see:
http://msdn.microsoft.com/en-us/library/system.windows.frameworkelement.predictfocus.aspx[^].

—SA

Posted 7-May-12 19:58pm

Sergey Alexandrovich Kryukov

Updated 14-May-12 9:56am

v2

Comments

Maciej Los 8-May-12 15:03pm

Good answer, my 5!

Sergey Alexandrovich Kryukov 8-May-12 15:13pm

Thank you.
--SA

killerqx1 9-May-12 21:45pm

i'm sorry! i using WPF

killerqx1 9-May-12 21:47pm

my issue is, curent i am focus on textbox, so after pressed F1 Function key then move focus to the previous control, i try "Me.SelectNextControl(Me.ActiveControl, False, True, True, True)" but it does not work

Sergey Alexandrovich Kryukov 10-May-12 19:25pm

This should be a right solution, but "it does not work" is not informative. Run it under the debugger, observe if this method is called at all or not, see what happens on related event (don't use F1, it is reserved for help).

Again, by not tagging your question you made me to waste some time. This is not very nice. Well, tag it now. Please tag it properly next time.
--SA

killerqx1 11-May-12 23:57pm

sorry for made you to waste some time! so i thank you

Sergey Alexandrovich Kryukov 14-May-12 15:57pm

OK, but now, when we're clear about that, I've added an answer about WPF -- please see.
If it can work for you, please accept the answer formally (green button) -- thanks.
--SA

mohamadreza mokhtari · Answer 2 · 2012-05-08T08:19:00

hi you can define a bookmark variable as control
and in lostfocus event of every control set it to that control

VB

    Dim Bkm, bkm1 As Control
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
'focus to previous control
        bkm1.Focus()
    End Sub
    Private Sub TextBox3_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox3.LostFocus
        bkm1 = Bkm
        Bkm = TextBox3
    End Sub
    Private Sub TextBox4_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox4.LostFocus
        bkm1 = Bkm
        Bkm = TextBox4
    End Sub
    Private Sub TextBox5_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox5.LostFocus
        bkm1 = Bkm
        Bkm = TextBox5
    End Sub
    Private Sub TextBox1_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.LostFocus
        bkm1 = Bkm
        Bkm = TextBox1
    End Sub
    Private Sub TextBox2_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox2.LostFocus
        bkm1 = Bkm
        Bkm = TextBox2
    End Sub

when you need to focus the previous control press button3
good luck