Possible memory leak

[kristian mo]

Hey there migth be a a memory leak with the ExpandingIcon.IconChanged static event. The TreeViewAdv is used many places in our application and using SciTech .NET Memory Profiler I get EventHandler roots that are not removed.

I tried to reproduce it with a smaller application:

Steps:
1. Create a new project MemoryLeak as an Windows Forms Application in Visual Studio 201X
2. Include a reference to Aga.Controls.dll 1.7.0.0
3. Create a new form TreeViewAdv, drag and drop a TreeViewAdv onto it from the toolbox.
4. In the automatically created Form1 add a button, and a button click event.
5. Launch the TreeViewAdv from the button function

Form1.cs:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace MemoryLeak
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            var form = new TreeViewAdv();
            form.ShowDialog();
        }
    }
}

TreeViewAdv.cs:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace MemoryLeak
{
    public partial class TreeViewAdv : Form
    {
        public TreeViewAdv()
        {
            InitializeComponent();
        }
    }
}

TreeViewAdv.Designer.cs:

namespace MemoryLeak
{
    partial class TreeViewAdv
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.treeViewAdv1 = new Aga.Controls.Tree.TreeViewAdv();
            this.SuspendLayout();
            // 
            // treeViewAdv1
            // 
            this.treeViewAdv1.BackColor = System.Drawing.SystemColors.Window;
            this.treeViewAdv1.DefaultToolTipProvider = null;
            this.treeViewAdv1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.treeViewAdv1.DragDropMarkColor = System.Drawing.Color.Black;
            this.treeViewAdv1.LineColor = System.Drawing.SystemColors.ControlDark;
            this.treeViewAdv1.Location = new System.Drawing.Point(0, 0);
            this.treeViewAdv1.Model = null;
            this.treeViewAdv1.Name = "treeViewAdv1";
            this.treeViewAdv1.SelectedNode = null;
            this.treeViewAdv1.Size = new System.Drawing.Size(284, 262);
            this.treeViewAdv1.TabIndex = 0;
            this.treeViewAdv1.Text = "treeViewAdv1";
            // 
            // TreeViewAdv
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(284, 262);
            this.Controls.Add(this.treeViewAdv1);
            this.Name = "TreeViewAdv";
            this.Text = "TreeViewAdv";
            this.ResumeLayout(false);

        }

        #endregion

        private Aga.Controls.Tree.TreeViewAdv treeViewAdv1;
    }
}

When I start the application and open/close TreeViewAdv with the memory profiler I get an event handler that is active for every open/close cycle.

[kristian mo]

Sorry, seems I failed at googling.
Fix available here: https://sourceforge.net/p/treeviewadv/bugs/28/