Data Grid View Coding question

Hello Experts

I can do the following:

foreach (TabPage tp in tabc__all.TabPages
   foreach (Control lbl in tp.Controls) lbl.BackColor = Color.Blue;

My question is how do I do the same with datagridviews, so something like the following:


foreach (TabPage tp in tabc__all.TabPages
   foreach (Datagridview dgv in tp.Controls) dgv.BackColor = Color.Blue;

I get an error with this code,  Just a beginning programmer so Detail code please,  Thanks