click Event Problem

Question

Hi Good Evening...,

I have a button in aspx page

In Button click event code i am trying to insert data in sqlserver.

once button clicked the data was stored in database ,its working fine but my problem is when i am click  the button multiple times the data was inserted many time,

how can i restrict to allow the user only one time click ?



Please Provide me Solution as Possible as Early...

Thanks in Advance
P.Vinay Kumar