Get rid of empty space between rows

 I have created a table that has 50 rows, each row contains a GridView control that may or may not show depending on wether it has information to retrieve from the database. My problem is that if Gridviews on rows 2 and 40 are the only ones displaying, I end up having this dead space between the two GridViews, how can I get rid of this. Every gridview MUST be in their own cell.

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