Gridview does not display , with or without data 2) how do

Question

Hi all ,

 

could anyone kindly help me with these issues 

 

1) At runtime my gridview  or datalist or formview does not display on the webpage , despite being connected to data via a sqldatasource to an  sqldatabase , all other controls display on the webpage i.e textboxes, labels , what is wrong , ive checked my code and tried , without connection to a datasource  but still get same ! , just displays a blank page

 

2) i am passing an int  variable from one aspx page to be inserted   into a table in the destination page using c# and asp.net ,

 

please how do i go about it  [email protected]

 

 Regards

 

Chinedu Nwankwo