Have the user resize the tab control during runtime

I don't know the proper words, but let me explain my question;

If you take a normal windows file explorer.exe, on the left side you have a treeview and on right is a listview.

If you hover your mouse just inbetween these two controls your mouse changes in a littel pike with two arrows on the right and left size to resize it.

Looks a bit like: <-|->

I have a simelair situation in my Form, and I was wondering how to do that!, Both my treeview and listview are in a table layout panel. But I don't see those 'resize gribs'.

My listview and treeview are 'dock as filled' in my table layout panel.

Thanks for your help!

You could use the split container, that sounds exactly what you're wanting. You can find the control under the "Containers" tab in your toolbox. Here is an image, you can't see my mouse, but it's doing what you want:
Attachment 97439

Thanks sounds like the term I'm missing! I'm gonna try it right away! :)