How can I loop through controls on a form and find out what type they are.
I want to loop through controls on a webform and if they are visible
textboxes change there value if NULL to "na".
Also
If I placed this code in a module or class how would the code know which
page I was refering to.
4  1797 
"Poppy" <pa**********@N OSPAMthemedialo unge.com> wrote in message
news:ua******** ******@TK2MSFTN GP11.phx.gbl... How can I loop through controls on a form and find out what type they are.
I want to loop through controls on a webform and if they are visible
textboxes change there value if NULL to "na".
Also
If I placed this code in a module or class how would the code know which
page I was refering to.
This is a VB Lanugage group, not WebForms/ASP. In VB, you could do it like
this:
Dim c as Windows.Forms.C ontrol
For Each c In Me.Controls
If TypeOf c Is TextBox Then
'// Do something
End If
Next
But I'm sure that doesn't help you much, I would try asking your question in
the ASP.NET group:
microsoft.publi c.dotnet.framew ork.aspnet
HTH,
Jeremy
Cheers
"Jeremy Cowles" <jeremy.cowle s[nosp@m]asifl.com> wrote in message
news:92******** ***********@twi ster.tampabay.r r.com... "Poppy" <pa**********@N OSPAMthemedialo unge.com> wrote in message
news:ua******** ******@TK2MSFTN GP11.phx.gbl... How can I loop through controls on a form and find out what type they
are. I want to loop through controls on a webform and if they are visible
textboxes change there value if NULL to "na".
Also
If I placed this code in a module or class how would the code know which
page I was refering to.
This is a VB Lanugage group, not WebForms/ASP. In VB, you could do it like
this:
Dim c as Windows.Forms.C ontrol
For Each c In Me.Controls
If TypeOf c Is TextBox Then
'// Do something
End If
Next
But I'm sure that doesn't help you much, I would try asking your question
in the ASP.NET group:
microsoft.publi c.dotnet.framew ork.aspnet
HTH,
Jeremy
Hi Poppy,
I wish the "typeof" did work on a webform, but as far as I know it does
not.
That makes it almost impossible to use a for each loop with sence on a
webform.
\\\
Private Sub Button1_Click(B yVal sender As System.Object, ByVal e As
System.EventArg s) Handles Button1.Click
Dim ctr As Control
For Each ctr In Me.Controls
If TypeOf ctr Is TextBox Then
ctr.Visible = False
End If
Next
End Sub
///
Does nothing .
\\\
Dim ctr As Control
For Each ctr In Me.Controls
ctr.Visible = False
next
///
This works but I never could come at the text property therefore I need a
cast to textbox.
(There is no error message, you can only see it by trying this, both code is
full accepted)
Very much
;-((((
Cor
* "Poppy" <pa**********@N OSPAMthemedialo unge.com> scripsit: How can I loop through controls on a form and find out what type they are.
For Windows Forms:
<http://www.mvps.org/dotnet/dotnet/samples/controls/downloads/EnumerateContro ls.zip>
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet> This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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