CODEWITHSUNDEEP
c#.netwpfwinformstreeview
NateShoffner
NateShoffner

Reputation: 16839

TreeView Control similar to that of utorrent

In uTorrent 2.2 when a treeview node is selected, the node has a similar appearance of a button. It makes the .NET treeview control seem like so inadequate to me. Now I know utorrent is written in C++, but does anyone know how they might have done this, or does anybody know of libraries out there that would suffice?

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Upvotes: 3

Views: 861

Answers (1)

Hans Passant
Hans Passant

Reputation: 941744

It is a standard Windows TreeView control with the Win7 "Explorer" visual style applied. You can get one in your own program easily by changing the theme for the control. Add a new class to your project and paste the code shown below. Compile. Drop the new control from the top of the toolbox onto your form.

using System;
using System.Windows.Forms;
using System.Runtime.InteropServices;

class MyTreeView : TreeView {
    protected override void OnHandleCreated(EventArgs e) {
        if (Environment.OSVersion.Version.Major >= 6) {
            SetWindowTheme(this.Handle, "Explorer", null);
        }
        base.OnHandleCreated(e);
    }
    [DllImportAttribute("uxtheme.dll", CharSet = CharSet.Auto)]
    private static extern int SetWindowTheme(IntPtr hWnd, string appname, string idlist);
}

This isn't directly possible for WPF unless you use the WindowsFormHost class.

Upvotes: 4

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