RDLC Report is showing nothing

Question

This is my stored procedure:

IF (@Action = 'selectbyLocationSummary')
BEGIN
    SELECT 
        SUM(INHD.TaxableAmt),
        SUM(INHD.CGSTAmount),
        SUM(INHD.SGSTAmt),
        SUM(INHD.IGSTAmount)
    FROM 
        InvoiceHD AS INHD       
    WHERE 
        INHD.InvoiceDate BETWEEN @fromdate AND @todate
END

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I want to show TaxableAmt, CGSTAmount, SGSTAmt, IGSTAmount values on a RDLC report..

Why is the RDLC report not showing anything?