Who knows that there is such a wide shelf that imitates Outlook.

lyl_ulen

Any of you have the kind of wide mailbox that imitates Outlook.

violey

Combine splitcontainer and toolstrip to make one yourself. Write a render yourself first, rewrite several of the methods, and set the render of toolstrip to the one you wrote yourself. The idea is this, I just wrote about it a few weeks ago

angelinexiao

Dotnetbar
to fulfill

diudiu1820

Dotnetbar can achieve