PerformanceTest.cs :  » GUI » TreeViewAdv » SampleApp » C# / CSharp Open Source

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using Aga.Controls.Tree;
using Aga.Controls;

namespace SampleApp{
  public partial class PerformanceTest : UserControl
  {
    private const int Num = 25000;
    private TreeModel _model;

    public PerformanceTest()
    {
      InitializeComponent();
    }

    private void _load_Click(object sender, EventArgs e)
    {
      label3.Text = "Working";
      Application.DoEvents();

      _treeView.Model = null;
      _model = null;
      GC.Collect(3);

      TimeCounter.Start();

      _model = new TreeModel();
      for (int i = 0; i < 10; i++)
      {
        _model.Root.Nodes.Add(new Node(i.ToString()));
        for (int n = 0; n < 500; n++)
        {
          _model.Root.Nodes[i].Nodes.Add(new Node(n.ToString()));
          for (int k = 0; k < 5; k++)
            _model.Root.Nodes[i].Nodes[n].Nodes.Add(new Node(k.ToString()));
        }
      }

      _treeView.Model = _model;

      label3.Text = TimeCounter.Finish().ToString();
    }

    private void _expand_Click(object sender, EventArgs e)
    {
      if (_treeView.Root.Children.Count > 0)
      {
        label4.Text = "Working";
        Application.DoEvents();

        TimeCounter.Start();

        if (_treeView.Root.Children[0].IsExpanded)
          _treeView.CollapseAll();
        else
          _treeView.ExpandAll();

        label4.Text = TimeCounter.Finish().ToString();
      }
    }

    private void _load2_Click(object sender, EventArgs e)
    {
      label5.Text = "Working";
      Application.DoEvents();

      _treeView2.Nodes.Clear();

      TimeCounter.Start();
      _treeView2.BeginUpdate();

      List<TreeNode> list = new List<TreeNode>();
      for (int i = 0; i < 10; i++)
      {
        list.Add(new TreeNode(i.ToString()));
        for (int n = 0; n < 500; n++)
        {
          list[i].Nodes.Add(n.ToString());
          for (int k = 0; k < 5; k++)
            list[i].Nodes[n].Nodes.Add(k.ToString());
        }
      }
      _treeView2.Nodes.AddRange(list.ToArray());

      _treeView2.EndUpdate();
      label5.Text = TimeCounter.Finish().ToString();
    }

    private void _expand2_Click(object sender, EventArgs e)
    {
      if (_treeView2.Nodes.Count > 0)
      {
        label6.Text = "Working";
        Application.DoEvents();

        TimeCounter.Start();

        //treeView1.BeginUpdate();
        if (_treeView2.Nodes[0].IsExpanded)
          _treeView2.CollapseAll();
        else
          _treeView2.ExpandAll();
        //treeView1.EndUpdate();

        label6.Text = TimeCounter.Finish().ToString();
      }
    }
  }
}