jQuery验证器和datepicker点击不验证

I am using jquery validator to validate text inputs. The problem I have is, if I click submit it displays all error message correctly. However, on the datepicker input, to clear the error message I have to select the datepicker twice. ie; 1 click to select and it inputs the data correctly. 2nd click to clear the error message. I am using jquery validator to validate text in