How can I test all my textboxes in my form wether they
are empty are not by using a for each... in .. structure
in VB.Net?
12  1649 
Hi Java, How can I test all my textboxes in my form wether they
are empty are not by using a for each... in .. structure
in VB.Net?
When all textboxes are on the main form (windowform)
Rough written so don't look at typo's
\\\
dim ctr as control
for each ctr in me.controls
if typeof ctr is textbox then
if ctr.text <>"" then
'do something
end if
end if
next
///
If it is a webform "text" is not in the control and you have to cast it
first, but that is a problem itself, but I thought I have somewhere saved a
solution, so tell that than again.
I hope this helps a little bit,
Cor
Hi,
Dim ctrl As Control
For Each ctrl In Me.Controls
If TypeOf (ctrl) Is TextBox Then
Dim tb As TextBox = ctrl
If tb.Text = "" Then
tb.Text = "Empty"
End If
End If
Next
Ken
---------------------------------------
"koffietje" <an*******@discussions.microsoft.com> wrote in message
news:07****************************@phx.gbl... How can I test all my textboxes in my form wether they
are empty are not by using a for each... in .. structure
in VB.Net?
* "Ken Tucker [MVP]" <vb***@bellsouth.net> scripsit: If TypeOf (ctrl) Is TextBox Then
Just FYI: You don't need the "(", ")" around 'ctrl'.
;-)
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
* "koffietje" <an*******@discussions.microsoft.com> scripsit: How can I test all my textboxes in my form wether they
are empty are not by using a for each... in .. structure
in VB.Net?
<http://www.mvps.org/dotnet/dotnet/samples/controls/downloads/EnumerateControls.zip>
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
"koffietje" <an*******@discussions.microsoft.com> schrieb How can I test all my textboxes in my form wether they
are empty are not by using a for each... in .. structure
in VB.Net?
You do need a loop. Either for each..next, for..next, do while...
--
Armin
Hi Ken, exactly what I was looking for! Thanks! -----Original Message-----
Hi,
Dim ctrl As Control
For Each ctrl In Me.Controls
If TypeOf (ctrl) Is TextBox Then
Dim tb As TextBox = ctrl
If tb.Text = "" Then
tb.Text = "Empty"
End If
End If
Next
Ken
---------------------------------------
"koffietje" <an*******@discussions.microsoft.com> wrote
in messagenews:07****************************@phx.gbl... How can I test all my textboxes in my form wether they
are empty are not by using a for each... in ..
structure in VB.Net?
.
Hi, Cor, all the information I needed ! thanks -----Original Message-----
Hi Java, How can I test all my textboxes in my form wether they
are empty are not by using a for each... in ..
structure in VB.Net?
When all textboxes are on the main form (windowform)
Rough written so don't look at typo's
\\\
dim ctr as control
for each ctr in me.controls
if typeof ctr is textbox then
if ctr.text <>"" then
'do something
end if
end if
next
///
If it is a webform "text" is not in the control and you
have to cast itfirst, but that is a problem itself, but I thought I
have somewhere saved asolution, so tell that than again.
I hope this helps a little bit,
Cor
.
Hi Fergus,
Great information, thanks a lot! -----Original Message-----
Hi Koffietje,
You need one of two methods depending on whether
your TextBoxes aredirectly on the Form or whether some are held within
other Controls such asPanels.
If all the TextBoxes are directly on the Form then
the methods shown byCor and Ken will be fine.
If there are any TextBoxes inside other Controls
then a recursive methodis required: An example is shown below. Form is a
Control so it starts offwith the Form passing itself (Me).
In the Form:
CheckTheTextBoxes (Me)
Sub CheckTheTextBoxes (oControl As Control)
Dim oChildControl As Control
For Each oChildControl in oControl.Controls
If TypeOf (oChildControl) Is TextBox _
AndAlso oChildControl.Text = "" Then 'or
use <> 'Take some action.
End If
CheckTheTextBoxes (oChildControl) 'Check
Panels, etc. Next
End Sub
You can use:
Dim oTextBox As TextBox = oChildControl
in the 'Take some action' section if you actually
need to do anything'textboxy'.
Regards,
Fergus
If you use Option Strict On, you'll need
Dim oTextBox As TextBox = DirectCast
(oChildControl, TextBox)
.
Thanks a lot !! -----Original Message-----
* "koffietje" <an*******@discussions.microsoft.com>
scripsit: How can I test all my textboxes in my form wether they
are empty are not by using a for each... in ..
structure in VB.Net?
<http://www.mvps.org/dotnet/dotnet/sa...controls/downl
oads/EnumerateControls.zip>
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
.
* "koffietje" <an*******@discussions.microsoft.com> scripsit: Hi Ken, exactly what I was looking for! Thanks!
Notice that this code will not enumerate nested controls.
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
Improve your quoting style:
<http://learn.to/quote>
<http://www.plig.net/nnq/nquote.html>
Hi Herfried,
Notice that this code will not enumerate nested controls.
But the answer from Fergus does and Java was answering that also
Cor
* "Cor" <no*@non.com> scripsit: Notice that this code will not enumerate nested controls.
But the answer from Fergus does and Java was answering that also
I know that...
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
Improve your quoting style:
<http://learn.to/quote>
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