Events for runtime created controls.

Tym

I have a piece of code thus:

For iLOOP = 0 To iNoDays - 1
For jLOOP = 0 To iMaxPeriods - 1
iX = 10 + (iLOOP * (dCellWidth + 10))
iY = 10 + (jLOOP * (dCellHeight + 10)) +
Me.Size.Height / 4
If jLOOP = 0 And iLOOP = 0 Then
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP) = New
TextBox
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP).Text =
" "
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Location = New Point(iX, iY)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).AutoSize = False
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP).Height
= dCellHeight
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP).Width
= dCellWidth
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Visible = False
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP).Name =
"txtPERIOD" & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
Me.Controls.Add (lblDISPLAY(((i LOOP) * iMaxPeriods)
+ jLOOP))
Else
If jLOOP = 0 And iLOOP > 0 Then
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP) =
New TextBox
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Text = WeekdayName(iLO OP, , FirstDayOfWeek. Sunday)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Location = New Point(iX, iY)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Height = dCellHeight
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Width = dCellWidth
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).AutoSize = False
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).BorderSt yle = BorderStyle.Non e
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).TextAlig n = HorizontalAlign ment.Center
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Name = "txtPERIOD" & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
Me.Controls.Add (lblDISPLAY(((i LOOP) *
iMaxPeriods) + jLOOP))
Else
If iLOOP = 0 And jLOOP > 0 Then
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP) = New TextBox
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Text = "Period " & jLOOP.ToString
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Location = New Point(iX, iY)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Height = dCellHeight
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Width = dCellWidth
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).AutoSize = False
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).BorderSt yle = BorderStyle.Non e
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).TextAlig n = HorizontalAlign ment.Right
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Name = "txtPERIOD" & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
Me.Controls.Add (lblDISPLAY(((i LOOP) *
iMaxPeriods) + jLOOP))
Else
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP) = New TextBox
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Text = "Label No " & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Location = New Point(iX, iY)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Height = dCellHeight
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Width = dCellWidth
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).AutoSize = False
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Name = "txtPERIOD" & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
Me.Controls.Add (lblDISPLAY(((i LOOP) *
iMaxPeriods) + jLOOP))
End If
End If
End If
Next jLOOP
Next iLOOP

which creates a grid of text boxes on a form at runtime dependent on
the number of days and the number of periods - its a timetable sort of
thing.

How do I capture events for these controls?
such as
private sub lblDISPLAY(((iL OOP) * iMaxPeriods)_Mo useclick

or

private sub lblDISPLAY(((iL OOP) * iMaxPeriods)_go tfocus

??

Nov 21 '05 #1

Subscribe Reply

1212

Jay B. Harlow [MVP - Outlook]

Tym,
You can use AddHandler & RemoveHandler, something like:

Dim index As Integer = ((iLOOP) * iMaxPeriods) + jLOOP

AddHandler lblDISPLAY(inde x).Click, AddressOf labelDisplay_Cl ick
AddHandler lblDISPLAY(inde x).GotFocus, AddressOf
labelDisplay_Go tFocus

Private Sub labelDisplay_Cl ick(ByVal sender As Object, ByVal e As
System.EventArg s)

End Sub

Private Sub labelDisplay_Go tFocus(ByVal sender As Object, ByVal e As
System.EventArg s)

End Sub

Hope this helps
Jay

"Tym" <no*****@ictis. net> wrote in message
news:5l******** *************** *********@4ax.c om...

I have a piece of code thus:

For iLOOP = 0 To iNoDays - 1
For jLOOP = 0 To iMaxPeriods - 1
iX = 10 + (iLOOP * (dCellWidth + 10))
iY = 10 + (jLOOP * (dCellHeight + 10)) +
Me.Size.Height / 4
If jLOOP = 0 And iLOOP = 0 Then
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP) = New
TextBox
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP).Text =
" "
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Location = New Point(iX, iY)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).AutoSize = False
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP).Height
= dCellHeight
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP).Width
= dCellWidth
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Visible = False
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP).Name =
"txtPERIOD" & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
Me.Controls.Add (lblDISPLAY(((i LOOP) * iMaxPeriods)
+ jLOOP))
Else
If jLOOP = 0 And iLOOP > 0 Then
lblDISPLAY(((iL OOP) * iMaxPeriods) + jLOOP) =
New TextBox
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Text = WeekdayName(iLO OP, , FirstDayOfWeek. Sunday)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Location = New Point(iX, iY)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Height = dCellHeight
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Width = dCellWidth
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).AutoSize = False
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).BorderSt yle = BorderStyle.Non e
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).TextAlig n = HorizontalAlign ment.Center
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Name = "txtPERIOD" & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
Me.Controls.Add (lblDISPLAY(((i LOOP) *
iMaxPeriods) + jLOOP))
Else
If iLOOP = 0 And jLOOP > 0 Then
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP) = New TextBox
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Text = "Period " & jLOOP.ToString
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Location = New Point(iX, iY)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Height = dCellHeight
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Width = dCellWidth
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).AutoSize = False
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).BorderSt yle = BorderStyle.Non e
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).TextAlig n = HorizontalAlign ment.Right
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Name = "txtPERIOD" & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
Me.Controls.Add (lblDISPLAY(((i LOOP) *
iMaxPeriods) + jLOOP))
Else
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP) = New TextBox
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Text = "Label No " & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Location = New Point(iX, iY)
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Height = dCellHeight
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Width = dCellWidth
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).AutoSize = False
lblDISPLAY(((iL OOP) * iMaxPeriods) +
jLOOP).Name = "txtPERIOD" & ((iLOOP) * iMaxPeriods) + jLOOP.ToString
Me.Controls.Add (lblDISPLAY(((i LOOP) *
iMaxPeriods) + jLOOP))
End If
End If
End If
Next jLOOP
Next iLOOP

which creates a grid of text boxes on a form at runtime dependent on
the number of days and the number of periods - its a timetable sort of
thing.

How do I capture events for these controls?
such as
private sub lblDISPLAY(((iL OOP) * iMaxPeriods)_Mo useclick

or

private sub lblDISPLAY(((iL OOP) * iMaxPeriods)_go tfocus

??

Nov 21 '05 #2

Cor Ligthert

Tym,

You never saw my standard sample for this, it looks almost as your problem?.

You can find it in this message
http://groups.google.com/groups?selm...TNGP10.phx.gbl

I hope it helps?

Cor

Nov 21 '05 #3

Tym

Jay - excellent code - worked right out of the box!!

Just one further request - is there a way to detect which one has been
clicked??

advTHANKSance

On Tue, 2 Nov 2004 08:55:09 -0600, "Jay B. Harlow [MVP - Outlook]"
<Ja************ @msn.com> wrote:

Private Sub labelDisplay_Cl ick(ByVal sender As Object, ByVal e As System.EventArg s)
msgbox ("You have clicked on cell number " & labelDISPLAY.Na me)
' you get the idea... :-)
End Sub

Nov 21 '05 #4

Jay B. Harlow [MVP - Outlook]

Tym,
The sender parameter will be the specific TextBox that sent the message.

If your handler only handles TextBox events (you only use AddHandler on
TextBox objects) you can use:

Private Sub labelDisplay_Cl ick(ByVal sender As Object, ByVal e As
System.EventA rgs) Dim labelDISPLAY As TextBox = DirectCast(send er, TextBox)

msgbox ("You have clicked on cell number " & labelDISPLAY.Na me)
' you get the idea... :-)
If you use AddHandler on different type of controls, then I would recommend
using either Control & limit the event to properties common to all Controls,
or use TypeOf...
Private Sub labelDisplay_Cl ick(ByVal sender As Object, ByVal e As
System.EventA rgs)

Dim labelDISPLAY As Control = DirectCast(send er, Control)

-- or --
If TypeOf sender Is TextBox Then
Dim labelDISPLAY As TextBox = DirectCast(send er, TextBox)
...
ElseIf TypeOf sender Is ComboBox Then
Dim labelDISPLAY As ComboBox = DirectCast(send er, ComboBox)
...
End If

Hope this helps
Jay

"Tym" <bi********@mic rosoft.com> wrote in message
news:e7******** *************** *********@4ax.c om... Jay - excellent code - worked right out of the box!!

Just one further request - is there a way to detect which one has been
clicked??

advTHANKSance

On Tue, 2 Nov 2004 08:55:09 -0600, "Jay B. Harlow [MVP - Outlook]"
<Ja************ @msn.com> wrote:
Private Sub labelDisplay_Cl ick(ByVal sender As Object, ByVal e As
System.EventA rgs)

msgbox ("You have clicked on cell number " & labelDISPLAY.Na me)
' you get the idea... :-)
End Sub

Nov 21 '05 #5

Tym

Jay - Thanks - this is working fine so far...

Private Sub labelDisplay_Cl ick(ByVal Sender As Object, ByVal e As
System.EventArg s)
Dim labelDISPLAY As TextBox = DirectCast(Send er, TextBox)
MsgBox("Just clicked on a box! " & labelDISPLAY.To String)
End Sub
but this returns the text within the text box. Is there a way to
detect the .name of the text box clicked on, rather than returning its
contents?

Thanks - your help is brilliant.

Nov 21 '05 #6

Jay B. Harlow [MVP - Outlook]

Tym
Have you tried using the Name property of labelDISPLAY?

MsgBox("Just clicked on a box! " & labelDISPLAY.Na me)
Hope this helps
Jay

"Tym" <bi********@mic rosoft.com> wrote in message
news:jh******** *************** *********@4ax.c om... Jay - Thanks - this is working fine so far...

Private Sub labelDisplay_Cl ick(ByVal Sender As Object, ByVal e As
System.EventArg s)
Dim labelDISPLAY As TextBox = DirectCast(Send er, TextBox)
MsgBox("Just clicked on a box! " & labelDISPLAY.To String)
End Sub
but this returns the text within the text box. Is there a way to
detect the .name of the text box clicked on, rather than returning its
contents?

Thanks - your help is brilliant.

Nov 21 '05 #7

Tym

On Tue, 02 Nov 2004 17:40:58 +0000, Tym <bi********@mic rosoft.com>
wrote:

but this returns the text within the text box. Is there a way to
detect the .name of the text box clicked on, rather than returning its
contents?

Thanks - your help is brilliant.

Jay - found it....

Private Sub labelDisplay_Cl ick(ByVal Sender As Object, ByVal e As
System.EventArg s)
Dim labelDISPLAY As TextBox = DirectCast(Send er, TextBox)
MsgBox("Just clicked on a box! " & labelDISPLAY.Na me.ToString)
End Sub
Just needed to experiment a little - thanks for your help!

Nov 21 '05 #8

Jay B. Harlow [MVP - Outlook]

Tym,
labelDISPLAY.Na me returns a string, there is no real need to call ToString
on it.

MsgBox("Just clicked on a box! " & labelDISPLAY.Na me)
Hope this helps
Jay
"Tym" <bi********@mic rosoft.com> wrote in message
news:pi******** *************** *********@4ax.c om... On Tue, 02 Nov 2004 17:40:58 +0000, Tym <bi********@mic rosoft.com>
wrote:
but this returns the text within the text box. Is there a way to
detect the .name of the text box clicked on, rather than returning its
contents?

Thanks - your help is brilliant.

Jay - found it....

Private Sub labelDisplay_Cl ick(ByVal Sender As Object, ByVal e As
System.EventArg s)
Dim labelDISPLAY As TextBox = DirectCast(Send er, TextBox)
MsgBox("Just clicked on a box! " & labelDISPLAY.Na me.ToString)
End Sub
Just needed to experiment a little - thanks for your help!

Nov 21 '05 #9

Tym

On Tue, 2 Nov 2004 17:06:00 -0600, "Jay B. Harlow [MVP - Outlook]"
<Ja************ @msn.com> wrote:

labelDISPLAY.N ame returns a string, there is no real need to call ToString
on it.

Yes - thanks. I realised that afterwards!!

Ok, so now I've got an event handler, how easy is it to refer to these
textboxes within my code elsewhere?

Normally, I would code:

If txtTextBox.Text = "Some Text" then
'my procedure....
End If

But as the name of the control is determined at runtime, I can't see a
straightworward way of doing this.

Sorry to bother you again...

Nov 21 '05 #10

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