Query by form with different textbox criteria

[abadaysheker2]

Hi

i had a form (form2) with a listbox that displays the numbers from 1-12(representing the number of month) and a txtbox on which the user enters the year.

now i want to run a query with the criteria taken from this form ,that displays all the orders in the case of both listbox and txtbox are blank. in case that the user fills only the listbox(months) display all the orders that were made in that month at every year and finally in the case that he only fills the textbox(year) display all of the orders of that year

so far i have managed to make it work with the listbox (month)selected and both (listbox and textbox) blank but with regards to the textbox(year) i hasn't be able to make it work

any help will be appreciated

for more details i leave here the sql code an a picture of how it looks the query

thank you

 SELECT orders.[or-id], Sum([quantity_x_price_qry(help)].subtotal) AS SumOfsubtotal, orders.DateEntered, Month([orders]![DateEntered]) AS jodesh, Year([orders]![DateEntered]) AS shana, customers.FirstName, customers.LastName
FROM customers INNER JOIN ([quantity_x_price_qry(help)] INNER JOIN orders ON [quantity_x_price_qry(help)].[or-id] = orders.[or-id]) ON customers.[cust-id] = orders.[cust-id]
GROUP BY orders.[or-id], orders.DateEntered, Month([orders]![DateEntered]), Year([orders]![DateEntered]), customers.FirstName, customers.LastName
HAVING (((Month([orders]![DateEntered]))=[Forms]![Form2]![Monthtxt] Or [Forms]![Form2]![Monthtxt] Is Null) AND ((Year([orders]![DateEntered]))=[Forms]![Form2]![YearTxt] Or [Forms]![Form2]![YearTxt] Is Null));

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[zmbd]

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