I'm not at all familiar with the 3rd party DevExpress controls, but a quick Google shows that their tab control has many of the same properties as the standard version.
So...simply set the value of the
SelectedTabPage
or the
SelectedTabPageIndex
property. For the former, simply set it to the variable that contains the desired tab page. For the latter, simply set it to the zero-based index of the tab page you want.
For reference, see:
XtraTabControl Members | WinForms Controls | DevExpress Help[
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