Special TextBox Only Uppercase (Mayus is not a word in English)

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Hello everybody,

Please if you know a special textbox component that only write alpha letters
in Uppercase.

I mean that when i write in textbox, allways the component show me uppercase letters

for example:
------------------------------------------

I write	textbox show
mama	MAMA
Programming	PROGRAMMING

-------------------------------------------

Please give me a resources where I can find about this special component.

Thanks in advance,

Posted 22-Mar-11 6:10am

leocode7

Updated 22-Mar-11 13:29pm

Toli Cuturicu

v2

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#realJSOP 22-Mar-11 12:28pm

What?

leocode7 22-Mar-11 14:01pm

what what?? jajaja

pankajupadhyay29 22-Mar-11 12:32pm

do you want to show text in UpperCase?? Is this window form application or web application.

leocode7 22-Mar-11 14:02pm

Hello,
it's for form aplication and i want upper case, but I have good answers now.
Thanks anyway.

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pankajupadhyay29 · Accepted Answer · 2011-03-22T06:51:00

for window application use txt.CharacterCasing = CharacterCasing.Upper and for web application use following javascript

Java

function MakeUpper(event) {
           var charCode =  event.keyCode;
           if (charCode >= 97 && charCode <= 122) {
               event.keyCode = charCode - 32;
           }
           return true;
       }

and on pageload write --

C#

TextBox1.Attributes.Add("onkeypress", "MakeUpper(event)");

[Edit]
I checked this is working fine in IE but for others we need to make a small change

Java

<pre lang="cs">function MakeUpper(evt,obj) {
           var charCode = evt.which ? evt.which : evt.keyCode;
           if (charCode >= 97 && charCode <= 122) {
               obj.value += String.fromCharCode(charCode - 32);
               evt.returnValue = false;
               return false;
           }
           else {
               return true;
           }
       }

and in page load--

C#

TextBox1.Attributes.Add("onkeypress", "MakeUpper(event, this)");

[/Edit]
--Pankaj

Sergey Alexandrovich Kryukov · Accepted Answer · 2011-03-22T06:36:00

You don't need a special text box. You use a regular one, only need to filter our unwanted characters.

Use something like this:

C#

MyTextBox.KeyPress += delegate(object sender, KeyPressEventArgs eventArgs) {
    ee.Handled = true;
    char ch = Convert.ToChar(eventArgs.KeyChar);
    if (!char.IsLetter(ch))
        ee.Handled = true;
};

This is the equivalent lambda form of the same thing. It is more convenient but require C#.v.3 or later:

C#

MyTextBox.KeyPress += (sender, eventArgs) => {
    eventArgs.Handled = true;
    char ch = Convert.ToChar(eventArgs.KeyChar);
    if (!char.IsLetter(ch))
        eventArgs.Handled = true;
};

Call this code anywhere before you show the form. I usually call it from the form's constructor, at the very end of it.

—SA

Special TextBox Only Uppercase (Mayus is not a word in English)

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