Re: possible to create one control array with different controls?
- From: "CMM" <cmm@xxxxxxxxxx>
- Date: Sat, 25 Feb 2006 14:34:51 -0500
Also the choice of name for your event handler, "OnEnter," is 100% BAD.
That's a sub of the base FORM class which is why I surmise you put
"Overloads" on (I take it the compiler complained and told you to put
"overloads" and you did it without really knowing what it meant). Why not
call your event handler something like
MyControls_Enter(...) Handles txt1.Enter, txt2.Enter ...
--
-C. Moya
www.cmoya.com
"Rich" <Rich@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:017A49C3-5E28-434D-95C1-DBAE00FC07F7@xxxxxxxxxxxxxxxx
Thanks very much for your reply. Your suggestion worked perfectly!
(for posterity here is what I did)
Dim arr As Control()
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles
MyBase.Load
arr = New Control() {txt1, txt2, txt3, txt4, cbo1}
End Sub
Private Overloads Sub OnEnter(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles
_
txt1.Enter, txt2.Enter, txt3.Enter,
txt4.Enter, cbo1.Enter
If TypeOf sender Is TextBox Then
MessageBox.Show("Textbox " & CType(sender, TextBox).Name)
ElseIf TypeOf sender Is ComboBox Then
MessageBox.Show("Combobox " & CType(sender, ComboBox).Name)
End If
End Sub
"CMM" wrote:
"Rich" <Rich@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:6EBE1741-B817-4039-A04B-598771510A9F@xxxxxxxxxxxxxxxx
Hello,
I have 3 textboxes and 1 combobox on a form. On entering the control I
want
to select all the text. I can make an array of textboxes like this:
Dim arrTxt As TextBox() = {txt1, txt2, txt3}
Then I loop through that array
Private Sub onEntering(ByVal sender As Object, ...) Handles _
txt1.Enter,
txt2.Enter, txt3.Enter
CType(sender, TextBox).SelectAll()
End Sub
Is it possible to create a similar control array that I could stuff the
textboxes and the combobox into? If yes, how is this done? What kind
of
control object could I use to hold different controls?
Dim arr As Control() = {txt1, txt2, txt3}
or
Dim arr As Object() = {txt1, txt2, txt3}
And how do I check if
sender is a
Textbox or combobox?
If CType(sender, TextBox) = True Then...? is this doable?
If CType(sender, ComboBox) = True Then...?
No, you would use:
If TypeOf sender Is TextBox Then
ElseIf TypeOf sender Is ComboBox Then
Also, make sure your event handler handles the lowest common denominator
in
terms of EventArgs. All EventArgs inherit from System.EventArgs... so use
that.
arr_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles ...
NOT
arr_Click(ByVal sender As System.Object, ByVal e As
SomeListViewSpecialEventArgs) Handles ...
--
-C. Moya
www.cmoya.com
.
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