TabStop is not working

Question

We have a form and textboxes in it. All of control's tabindex are set correctly and TabStop = true. When some textbox is focused and when I press tab, focus is not set on next textbox.

Note : Controls are in the panel and its TabStop = true

Answer 1

Set TabStop for the panel to false

Make sure that the tab indexes are like the following:

Remember that you have a nice tool to set the Tab indexes in Visual Studio:

Answer 2

My solution: Containers must have the tab numbers set correctly even though they are not stops. Finally working!