Cast string to button

Smoggy · 13-06-2006 09:18AM #1

Im trying to make some code that can reference x amount of buttons and then switch visible to false

For x = 1 To 10

btnSelected = CType("btnButton" & x.ToString, Button)

btnSelected.Visible = False

Next

Provides the error :

Value of type 'String' cannot be converted to 'System.Windows.Forms.Button'.

Any ideas, about converting string to object types such as buttons ?

timeout · 13-06-2006 10:45AM

What language are u using? Looks like Visual Basic but can't be sure!

[edit] actually it is I see that now.
Do you have the buttons created?
Could you not make a button array list?

timeout · 13-06-2006 11:16AM

Actually try this link : http://www.codeproject.com/vb/net/Control_Arrays.asp

Smoggy · 13-06-2006 12:12PM

Thanks timeout , I looked at the problem a different way and came up with a solution using :

for each ctrl in me.controls
if crtl.name = myname then

etc

Thanks for looking

Gosh · 13-06-2006 12:41PM

If you want to use the fieldname then the following will work if you call each button 'Button..."

Dim ctl As System.Windows.Forms.Control

For Each ctl In Me.Controls
   If Microsoft.VisualBasic.Left(ctl.Name, 6) = "Button" Then
      ctl.Visible = False
   End If
Next ctl

Mutant_Fruit · 13-06-2006 12:49PM

is there not a "FindControl()" method which takes the control name as a string, and returns the control?

i.e. Button mybutton = FindControl("myButtonsName");

Cast string to button

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