Only number input with a particular Pattern in asp.net

Question

Hello, 

   i want to take input only number . 

   for Example  : 2016-2017

   Here total 8 digit but one hyphen (-) .

   The hyphen should be between the two year.

 

Conditions:

 

          I can not take other character as a input apart form number.

         The hyphen will come automatically after enter the 4 first digits , then last four digit we          can enter.

         After that we can not take any other digit because already 8 digits over in the text box.

         

 

I used jQuery also but i did not get...

Can any one suggest plz..................