Question

I wrote like this:

this.myTreeView.FullRowSelect = true;
this.myTreeView.Size = new System.Drawing.Size(170, 300);

and when I use this property myTreeView.Enabled = false, it becomes like this:

Shadowed only tree area, but not all control, how to fix this? (make all control been shadowed)

Answer 1

What about:

.... Form()
{
this.InitializeComponent();

treeView1.EnabledChanged += (s, o) =>
{
    treeView1.BackColor = treeView1.Enabled ? Color.White : SystemColors.Control;
};

....

}