is there any way to free memory used by object of an application?

i m filling datatable Whenever i request for a data from database, each time it increases memory used by application.
is there any way to call garbage collector or something that kind of solution?

when you fill the data into a dataset and you displays the data into the gatagrid or any other object on the screen you must then dispose your dataset or let it be = to NULL.
in this way you will be freeing you memeory and this is the best way to decrease your memory usage.

Hope it will help.

<GMK>

ya its definatly right but just for datasets or say for our variables
but wt abt forms, whenever i open a form it allocates memory and after closing it doesnt free that memory even though this form has no dataset fill or any other variable declaration
even when i call System.GC.Collect() on Closing but it doesnt works.