TreeView ImageIndex
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
public class Form1 : System.Windows.Forms.Form {
private System.Windows.Forms.TreeView treeView1;
ImageList il = new ImageList();
public Form1() {
this.treeView1 = new System.Windows.Forms.TreeView();
this.SuspendLayout();
this.treeView1.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right);
this.treeView1.Font = new System.Drawing.Font("Courier New", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.treeView1.HotTracking = true;
this.treeView1.ImageIndex = -1;
this.treeView1.Indent = 30;
this.treeView1.ItemHeight = 30;
this.treeView1.LabelEdit = true;
this.treeView1.Location = new System.Drawing.Point(8, 16);
this.treeView1.SelectedImageIndex = -1;
this.treeView1.Size = new System.Drawing.Size(360, 272);
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(376, 309);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.treeView1});
this.Text = "TreeView Control";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
[STAThread]
static void Main() {
Application.Run(new Form1());
}
private void Form1_Load(object sender, System.EventArgs e) {
il.Images.Add(new Icon("1.ICO"));
il.Images.Add(new Icon("2.ICO"));
il.Images.Add(new Icon("3.ICO"));
il.Images.Add(new Icon("4.ICO"));
treeView1.ImageList = il;
TreeNode rootNode = treeView1.Nodes.Add("USA");
rootNode.ImageIndex = 0;
TreeNode states1 = rootNode.Nodes.Add("a");
states1.ImageIndex = 1;
TreeNode states2 = rootNode.Nodes.Add("b");
states2.ImageIndex = 1;
TreeNode states3 = rootNode.Nodes.Add("c");
states3.ImageIndex = 1;
TreeNode states4 = rootNode.Nodes.Add("d");
states4.ImageIndex = 1;
TreeNode child = states1.Nodes.Add("A");
child.ImageIndex = 2;
child = states1.Nodes.Add("e");
child.ImageIndex = 2;
child = states1.Nodes.Add("f");
child.ImageIndex = 2;
child = states2.Nodes.Add("g");
child.ImageIndex = 2;
child = states2.Nodes.Add("h");
child.ImageIndex = 2;
child = states2.Nodes.Add("i");
child.ImageIndex = 2;
child = states3.Nodes.Add("j");
child.ImageIndex = 2;
child = states3.Nodes.Add("k");
child.ImageIndex = 2;
child = states3.Nodes.Add("l");
child.ImageIndex = 2;
child = states4.Nodes.Add("m");
child.ImageIndex = 2;
child = states4.Nodes.Add("n");
child.ImageIndex = 2;
child = states4.Nodes.Add("o");
child.ImageIndex = 2;
}
}
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