I have a requirement like if i select past date it should thrown an error.

Questions
,
1

I have a requirement like if i select past date it should thrown an error.
It should take if i select today or future date on my date field.

Can any one help me on this.

2

raj,

Since you are on Salesforce, I would add a validation rule to the field to validate that it is a future date.  Take a look at this link:

https://success.salesforce.com/answers?id=90630000000hO11AAE

Thanks,

Bill