[RESOLVED] The ConnectionString property has not been initialized..WHERE WHEN HOW?

[Deepa7476]

HI ALL
i am using VBEXpress 2005
CONTROLS PRESENT
IDTextbox
DataGridView
Next_Button ( the value in the IDTextbox changes when i clik the next_button)
LOAD_GRID_button

I am able to connect to my m.db databse ( via code)
I am alos able to display the result of my SQL_Query into my DataGridView the first time (..LOAD_GRID_button--cliked 1st time)

but after going to the next value (CLICKING THE NEXT_BUTTON)
and if i try to load the grid again (Clik Load_Grid the 2nd time.. i get the message
"""""The ConnectionString property has not been initialized.""""""
if u need to see the code in my form pla see atachment query.txt