How to get Current Month's Starting and End dates in SSRS report

Question

I am working on SSRS Report, I have used 2 Date selection calendar, From Date and To date, So in From Date the Current months starting date should be as default date, and into the to date the Last date of the current month should be by default. Should I use Expression? or By SQL Query?

Answer 1

Using T-SQL for 2012 version or higher it's quite simple, using DateFromParts to get the first day of the month and EOMonth to get the last day:

DECLARE @Today Date = GETDATE();
DECLARE @FirstDayOfTheMonth date = DATEFROMPARTS(YEAR(@Today), MONTH(@Today), 1),
        @LastDayOfTheMonth date = EOMONTH(@Today);