Use string.contains in visulaforce page

rendered="{!IF(contains(field.FieldPath, '.'), false, true)}"

Cron expression for scheduling batch in Salesforce

Cron expression

Every 30 minutes - '0 30 * * * ?'

Every hourly - '0 0 * * * ?'

Every 5 min - '0 5 * * * ?'

Every 10 min - '0 10 * * * ?'

Every 15 min - '0 15 * * * ?'

Every 20 min - '0 20 * * * ?'

Every 25 min - '0 25 * * * ?'

Every 30 min - '0 30 * * * ?'

like upto 55 or 59 your wish

Note: If you schedule your batch for every 5 min '0 5 * * * ?'. It means it will run every hours 5th minute.

It will not run every 5 minutes

If you want to run for every 5 min then you need to schedule 12 times with different different cron expression like for 5 min, 10 min, 15min like upto 60 min..


System.schedule('Job name', '0 30 * * * ?', new controller());

Visualforce AutoComplete

Source: http://ratanpaul.github.io/VisualforceAutoComplete/

Visualforce multiselect autocomplete

Source: http://ratanpaul.github.io/VisualforceMultiSelectAutoComplete/