* "Gigaworld" <servizi@gigaworld.it> scripsit:

Please don't multipost!

My FAQ:

\\\
Private Function FindControl( _
   ByVal ControlName As String, _
   ByVal CurrentControl As Control _
) As Control
   Dim ctr As Control
   For Each ctr In CurrentControl.Controls
       If ctr.Name = ControlName Then
           Return ctr
       Else
           ctr = FindControl(ControlName, ctr)
           If Not ctr Is Nothing Then
               Return ctr
           End If
       End If
   Next ctr
End Function
///

Usage:

\\\
DirectCast(FindControl("btnBla", Me), Button).Enabled = False
///

Notice that the procedure listed above is "slow", if you have to access a
lot of controls by name very often, you should store references to them in a
'Hashtable' object.  You can use the name of the control as key:

\\\
Private m_Controls As New Hashtable()
///

Adding a control:

\\\
Dim DynamicPictureBox As New PictureBox()
DynamicPictureBox.Name = "PictureBox1"
m_Controls.Add(DynamicPictureBox.Name, DynamicPictureBox)
///

Looking for a control:

\\\
Dim p As PictureBox = DirectCast(m_Controls.Item("PictureBox1"), PictureBox)
///

Removing a control:

\\\
m_Controls.Remove("PictureBox1")
///

Sometimes it's even better to add the control to an array.  This will allow
fast and easy index-based access to the control references:

\\\
Dim MyLabels() As Label = {Label1, Label2, ..., Label10}
///

Access by 'MyLabels(0)' to 'MyLabels(9)'.

Control arrays:

Control arrays, as known from VB6, are not included in VB.NET 2002/2003.

Creating Control Arrays in Visual Basic .NET and Visual C# .NET:
<URL:http://msdn.microsoft.com/library/en-us/dv_vstechart/html/vbtchCreatingControlAr
raysInVisualBasicNETVisualCNET.asp>

WinForms Controls--Creating Control Arrays in VB.NET
<URL:http://www.devx.com/vb2themax/Article/19907/>

In VS.NET "Whidbey" (2005) control arrays will be supported natively.