Half Width and Full Width
<p>i want to do a software for japan.
it has a reqirment to control the full width and half width in a textbox.</p>

<p>if i set the control's width is full width, whatever typed text is "full-width".
and if i set the control's width is half width, whatever typed text is half-width".</p>

<p>how can i implement it?</p>

<p>thanks! </p>
