>>>>>I think there's a simple answer to this but I can't think of it or find it.
>>>>>I want to set the character casing of all textboxes on a form to upper.
>>>>>I get this far and can't access the charactercasing property of the control.
>>>>>Any help appreciated.
>>>>>
>>>>>

>>>>>      foreach (Control c in parentForm.Controls)
>>>>>            {
>>>>>                if (c is TextBox)
>>>>>                {
>>>>>
>>>>>                }
>>>>>            }
>>>>>

>>>>
>>>>Did you try instead (not tested)
>>>>

>>>>var c as TextBox
>>>>
>>>>if (c!=null)
>>>> {
>>>>
>>>>  }

>>>>
>>>>See
>>>>
>>>>https://msdn.microsoft.com/en-us/library/cscsdfbt.aspx?f=255&MSPPError=-2147217396
>>>
>>>
>>>Thanks, Naomi
>>>
>>>I woke up from my trance and this did it
>>>
>>>

>>>
>>> foreach (Control c in parentForm.Controls)
>>>            {
>>>                if (c is TextBox)
>>>                {
>>>                    TextBox tb = c as TextBox;
>>>                    tb.CharacterCasing = CharacterCasing.Upper;
>>>                }
>>>            }
>>>

A Linq way:

foreach (Control c in parentForm.Controls.Where(x=>x is TextBox))
>>            {
>>                ((TextBox)c).CharacterCasing = CharacterCasing.Upper;
>>            }

>
>Thank you, Viv.
>I couldn't think of this syntax.
>

>((TextBox)c).CharacterCasing = CharacterCasing.Upper;
>

>The one I used worked but I prefer this one and I substituted it.

A better LINQ way:

foreach (TextBox c in parentForm.Controls.OfType< TextBox>())
            {
                c.CharacterCasing = CharacterCasing.Upper;
            }