I have a form with datagridview and four buttons. In the datagridview there are columns
surname, date of starting a job, data of ending a job.
I'd like to filter the datagridview by surname (e.g. to show in the datagridview every Smith),
the I'd like to show only records with avergate job length X years (every surname can have
more then one jobs in the past).
Then I'd like to show only employees with shortest length of employment and longist length
Do you know how to implements these functionalities by simply clicking on buttons
or changing text in textboxes?
thanks for help