date range

Range of dates as params in query

Hi,
I'm newer user of Bonita and I'd want to know how passing parameters as date in an URL to show a table filtered between dates. I have a table (entity) with a date field and my objectif is have a filtered view. I've done a custom query using this field. I've tried with a form with 2 datepickers but I don't know how transmettre these variables into the query to show the result. Must I convert these variables (stringtodate) ? where? Must I create an other forms with the resulting view? Is it necessary a process task? Is there any good simple example? Thanks

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