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| Frans, Stephen |
I'd like to loop thru all controls on a web form, but cannot find a
collection that I can enumerate thru (kind of like the old classic ASP "for
each x in Request.Forms" functionality).
Moreover, it would be nice to know the object type (TypeOf kind of
functionality to determine "user control" versus "web control" versus "html
control"). Once I knew the type of object, I could cast the object and
issue method calls on that object appropriate for that object.
Could someone point me in the right direction?
TIA,
Steve Frans
Impact Innovations Group
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| Brian Bilbro (VIP) |
Page.Controls is a collection of all of the controls.
There are some GetType functions available and even reflection (probably =
simipler than that though) to figure out the object type.
HTHs,
Brian'
----- Original Message -----
From: "Frans, Stephen" <Click here to reveal e-mail address>
Sent: 11/6/2001 8:38:00 PM
I'd like to loop thru all controls on a web form, but cannot find a
collection that I can enumerate thru (kind of like the old classic ASP =
"for
each x in Request.Forms" functionality). =20
=20
Moreover, it would be nice to know the object type (TypeOf kind of
functionality to determine "user control" versus "web control" versus =
"html
control"). Once I knew the type of object, I could cast the object and
issue method calls on that object appropriate for that object.
=20
Could someone point me in the right direction?
=20
TIA,
=20
Steve Frans
Impact Innovations Group
=20
=20
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| Daryl Pietrocarlo |
This isn't pretty code (and it is C#). A lot of copy and paste as I
needed it, but here is a function that will "rip" through any heiarchy
of controls if you pass the Enumerator using some recursion to pound
through the levels.
void ripper(IEnumerator indexEnumerator )
{
while (indexEnumerator.MoveNext())
{
Debug.WriteLine("Control:" +
indexEnumerator.Current.ToString());
Debug.WriteLine("Type:" +
indexEnumerator.Current.GetType().Name);
if (
indexEnumerator.Current.GetType().Name =3D=3D "Label")=20
{
Label l =3D
(Label)indexEnumerator.Current;
Debug.WriteLine("----------->
Label Text:" + l.Text);
}
=09
if (
indexEnumerator.Current.GetType().Name =3D=3D "TextBox")=20
{
TextBox l =3D
(TextBox)indexEnumerator.Current;
Debug.WriteLine("----------->
TextBox Text:" + l.Text);
}
if (
indexEnumerator.Current.GetType().Name =3D=3D "DataBoundLiteralControl") =
{
DataBoundLiteralControl l =3D
(DataBoundLiteralControl)indexEnumerator.Current;
Debug.WriteLine("----------->
DataBoundLiteralControl Text:" + l.Text);
}
if (
indexEnumerator.Current.GetType().Name =3D=3D "LiteralControl" ||
indexEnumerator.Current.GetType().Name=3D=3D =
"ResourceBasedLiteralControl")=20
{
LiteralControl l =3D
(LiteralControl)indexEnumerator.Current;
Debug.WriteLine("----------->
LiteralControl Text:" + l.Text);
=09
} =09
=09
Debug.WriteLine("Assembly:" +
indexEnumerator.Current.GetType().Assembly);
Control c =3D
(Control)indexEnumerator.Current;
if (c.Controls.GetEnumerator() !=3D null)
{
=09
ripper(c.Controls.GetEnumerator() );
}
}
}
Call it like this:
ripper(Page.Controls.GetEnumerator());
Remember if you have another control like a Datagrid, you can pass
MyDataGrid.Controls.GetEnumerator() just to go through the datagrid
etc.
Daryl Pietrocarlo
Vibrant Solutions
Click here to reveal e-mail address
-----Original Message-----
From: Brian Bilbro [mailto:Click here to reveal e-mail address]=20
Sent: Wednesday, November 07, 2001 11:52 PM
To: aspngcontrolsvb
Subject: [aspngcontrolsvb] RE: Looping thru controls on a page
Page.Controls is a collection of all of the controls.
There are some GetType functions available and even reflection (probably
simipler than that though) to figure out the object type.
HTHs,
Brian'
----- Original Message -----
From: "Frans, Stephen" <Click here to reveal e-mail address>
Sent: 11/6/2001 8:38:00 PM
I'd like to loop thru all controls on a web form, but cannot find a
collection that I can enumerate thru (kind of like the old classic ASP
"for each x in Request.Forms" functionality). =20
=20
Moreover, it would be nice to know the object type (TypeOf kind of
functionality to determine "user control" versus "web control" versus
"html control"). Once I knew the type of object, I could cast the
object and issue method calls on that object appropriate for that
object.
=20
Could someone point me in the right direction?
=20
TIA,
=20
Steve Frans
Impact Innovations Group
=20
=20
| [aspngcontrolsvb] member Click here to reveal e-mail address =3D YOUR ID=20
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| Paul D. Murphy |
FWIW, if you turn on tracing ASP.NET will lay out the control hierarchy
at the foot of every page.
Paul
[Original message clipped]
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| Rob Waggoner (VIP) |
And a VB Example:
Public Class frmMain
Inherits System.Windows.Forms.Form
...
Dim ctlToWork As Control ' declare control type
...
' loop through control collection searching for panel types
For Each ctlToWork In Controls
Select Case ctlToWork.GetType.FullName
Case "System.Windows.Forms.Panel"
ctlToWork.Visible = False
End Select
Next
Rob Waggoner
Master Applications Craftsman
WAGGS
Web based Advanced Graphics and Graphing Solutions
http://www.waggs.net
"Applying Old world craftsmanship to New world technologies"
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