is this what you what?:
screen shot
if so,
you can do this in the designer but here's the code:
private void InitializeComponent()
{
System.Windows.Forms.TreeNode treeNode1 = new System.Windows.Forms.TreeNode("A");
System.Windows.Forms.TreeNode treeNode2 = new System.Windows.Forms.TreeNode("C");
System.Windows.Forms.TreeNode treeNode3 = new System.Windows.Forms.TreeNode("D");
System.Windows.Forms.TreeNode treeNode4 = new System.Windows.Forms.TreeNode("G");
System.Windows.Forms.TreeNode treeNode5 = new System.Windows.Forms.TreeNode("F", new System.Windows.Forms.TreeNode[] {
treeNode4});
System.Windows.Forms.TreeNode treeNode6 = new System.Windows.Forms.TreeNode("B", new System.Windows.Forms.TreeNode[] {
treeNode2,
treeNode3,
treeNode5});
System.Windows.Forms.TreeNode treeNode7 = new System.Windows.Forms.TreeNode("H");
this.treeView1 = new System.Windows.Forms.TreeView();
this.SuspendLayout();
this.treeView1.Location = new System.Drawing.Point(57, 63);
this.treeView1.Name = "treeView1";
treeNode1.Name = "Node0";
treeNode1.Text = "A";
treeNode2.Name = "Node4";
treeNode2.Text = "C";
treeNode3.Name = "Node5";
treeNode3.Text = "D";
treeNode4.Name = "Node7";
treeNode4.Text = "G";
treeNode5.Name = "Node6";
treeNode5.Text = "F";
treeNode6.Name = "Node2";
treeNode6.Text = "B";
treeNode7.Name = "Node3";
treeNode7.Text = "H";
this.treeView1.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {
treeNode1,
treeNode6,
treeNode7});
this.treeView1.Size = new System.Drawing.Size(217, 172);
this.treeView1.TabIndex = 0;
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(405, 341);
this.Controls.Add(this.treeView1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.TreeView treeView1;