Uppercase in Combobox text

[Lakshmi]

Hi,

How can I make the combo box text uppercase? For instance when the user
types in letters in the combobox, I want them to appear as upper case.

Thanks.

Lakshmi

 

[John B]

Hi,

How can I make the combo box text uppercase? For instance when the user
types in letters in the combobox, I want them to appear as upper case.

Thanks.

Lakshmi

You could trap them manually in the textchanged event (bearing in mind
that the text might have changed because an item was selected).

JB

 

[Guest]

Use the following code in the keypress event of the combo box to convert the
letters to upper case:

string str = e.KeyChar.ToString().ToUpper();
char[] ch = str.ToCharArray();
e.KeyChar = ch[0];

 

[Cor Ligthert [MVP]]

Laskhmi,

This you can do in the same way as the thousands of numeric textboxes and
autocompleteboxes samples are done on internet.

Be aware not to use the keypress but the keyup event. The later gives
information about the key that has been pressed.

For the rest it is just MyPressedcharstring.ToUpper

I hope this helps,

Cor

 

[Claes Bergefall]

Do you want the items in the list to also be uppercase? If so, a simple
override will do the trick:

class UppercaseComboBox : ComboBox
{
private const int CBS_UPPERCASE = 0x2000;
protected override CreateParams CreateParams
{
get
{
CreateParams p = base.CreateParams;
p.Style |= CBS_UPPERCASE;
return p;
}
}
}

/claes