title: How to validate a ASP.Net TextBox which should allow negative or positive decimal value with three decimal places?
body: <p>I have a textbox which should allow user to enter only positive or negative decimal number with three decimal places. For Example: 73.345 or -2345.345 or -32.34. something like that. How to set the validation for this?</p>
  
  <p>Whether validation is by either using Validation Controls or by JavaScript. Any suggestions please.</p>