Reference form objects on docked user control and tab control

[C# Programming]

Good morning.

I have a user control which is docked on a form. On this user control there are three tabs. On the first tab, there are some text boxes, labels, and command boxes. The names I am trying to reference from the DAL class are as follows:

tabControl1
ucTabs user control
UIPCMainForm form
tpEntry first tab
tbContainer textbox

I used Intellisence, but could not come up with the references in any combination.

Any ideas? Thank you, WHEELS