Non-Deterministic Destructors - What Are They?

namespace Example.Destructors
{
    partial class MainForm
    {
        /// <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.btnUsingDispose = new System.Windows.Forms.Button();
            this.btnInsideUsing = new System.Windows.Forms.Button();
            this.btnNotUsingDispose = new System.Windows.Forms.Button();
            this.btnGarbageCollect = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // btnUsingDispose
            // 
            this.btnUsingDispose.Location = new System.Drawing.Point(12, 12);
            this.btnUsingDispose.Name = "btnUsingDispose";
            this.btnUsingDispose.Size = new System.Drawing.Size(202, 73);
            this.btnUsingDispose.TabIndex = 0;
            this.btnUsingDispose.Text = "Using Dispose()";
            this.btnUsingDispose.UseVisualStyleBackColor = true;
            this.btnUsingDispose.Click += new System.EventHandler(this.btnUsingDispose_Click);
            // 
            // btnInsideUsing
            // 
            this.btnInsideUsing.Location = new System.Drawing.Point(12, 111);
            this.btnInsideUsing.Name = "btnInsideUsing";
            this.btnInsideUsing.Size = new System.Drawing.Size(202, 73);
            this.btnInsideUsing.TabIndex = 0;
            this.btnInsideUsing.Text = "Inside using";
            this.btnInsideUsing.UseVisualStyleBackColor = true;
            this.btnInsideUsing.Click += new System.EventHandler(this.btnInsideUsing_Click);
            // 
            // btnNotUsingDispose
            // 
            this.btnNotUsingDispose.Location = new System.Drawing.Point(12, 203);
            this.btnNotUsingDispose.Name = "btnNotUsingDispose";
            this.btnNotUsingDispose.Size = new System.Drawing.Size(202, 73);
            this.btnNotUsingDispose.TabIndex = 0;
            this.btnNotUsingDispose.Text = "Not Using Dispose()";
            this.btnNotUsingDispose.UseVisualStyleBackColor = true;
            this.btnNotUsingDispose.Click += new System.EventHandler(this.btnNotUsingDispose_Click);
            // 
            // btnGarbageCollect
            // 
            this.btnGarbageCollect.Location = new System.Drawing.Point(299, 203);
            this.btnGarbageCollect.Name = "btnGarbageCollect";
            this.btnGarbageCollect.Size = new System.Drawing.Size(134, 73);
            this.btnGarbageCollect.TabIndex = 0;
            this.btnGarbageCollect.Text = "GC.Collect()";
            this.btnGarbageCollect.UseVisualStyleBackColor = true;
            this.btnGarbageCollect.Click += new System.EventHandler(this.btnGarbageCollect_Click);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.label1.Location = new System.Drawing.Point(237, 233);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(37, 13);
            this.label1.TabIndex = 1;
            this.label1.Text = " AND";
            // 
            // MainForm
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(454, 308);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.btnGarbageCollect);
            this.Controls.Add(this.btnNotUsingDispose);
            this.Controls.Add(this.btnInsideUsing);
            this.Controls.Add(this.btnUsingDispose);
            this.Name = "MainForm";
            this.Text = "Non-Deterministic Destructors";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button btnUsingDispose;
        private System.Windows.Forms.Button btnInsideUsing;
        private System.Windows.Forms.Button btnNotUsingDispose;
        private System.Windows.Forms.Button btnGarbageCollect;
        private System.Windows.Forms.Label label1;
    }
}