Question

i’m developing a windows form application.in the form, the left part is a tree menu, and the right part is show area. how can i change the show area according to what i click on the tree menu.

_{(source: 126.net)}

i use treenode class to implement treemenu like this:

System.Windows.Forms.TreeNode treeNode27 = new System.Windows.Forms.TreeNode("basic operation");

what i try to do is use several panels. each panel bounds to a menu item. by setting the visible property, i can achieve that goal. but it is too inconvenient.especially when i try to design each panel.
any good suggestion?

Answer 1

You could design each “Panel” as a new User Control. That way you can design all of the “panels / areas” on their own, independently of the Main Form.

On your Main Form, create a single panel for the right hand side area and add all of the controls to that one panel.

Then when the TreeNode selection event happens you can set all the user controls to .Visible = false; except for the one you are showing and set that to .Visible = true; and .Dock = DockStyle.Fill;