Sir, Thanks for reply.
Actually, I got little bit solution, i.e. when i call showall() function messagebox appears for telling to hold patience,
after that data is added to datagridview, i m showing messagebox that shows 'data is loaded' & then instantly progress bar get starts & ends. So i want to start the progress bar, which will start when messagebox for patience will started & end will second data is loaded..
So if u suggest any code then i will thankful....