How can I display a string as a combination of password chars and original form in asp.net Textbox control ?
<p>I have a Textbox control in which user can add/edit/delete values through this control.It only allows 10 digit numeric value. The first 5 digits should be shown as password chars and last 5 digit should be shown as its original form. (Eg: The value 1234567890 should be shown as <em>*</em>**67890).</p>

<p>How can I implement this in asp.net Textbox control?  </p>
