Apply page break at the begining of the table ONLY IF the entire table cannot accomdate in a page

Hi all,I have a three table in three rectangle in my SSRS report. If detail line item is increased , my second table is in cut down in the middle in the first page and continues in the second page. I don't wish to cut the table at the middle. I like to do the page break at the begining of the second table ONLY IF the entire table cannot accomdate in the first page.Please help me. Any help is appericated.