using System;
using System.Windows.Forms;

namespace clbTestIndeterminate
{
    public class ClbTestForm : Form
    {
        private System.ComponentModel.IContainer components = null;

        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
                components.Dispose();
            base.Dispose(disposing);
        }

        private void InitializeComponent()
        {
            this.checkedListBox1 = new System.Windows.Forms.CheckedListBox();
            this.SuspendLayout();
            //
            // checkedListBox1
            //
            this.checkedListBox1.CheckOnClick = true;
            this.checkedListBox1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.checkedListBox1.FormattingEnabled = true;
            this.checkedListBox1.Location = new System.Drawing.Point(0, 0);
            this.checkedListBox1.Name = "checkedListBox1";
            this.checkedListBox1.Size = new System.Drawing.Size(292, 259);
            this.checkedListBox1.TabIndex = 0;
            this.checkedListBox1.ItemCheck += new System.Windows.Forms.ItemCheckEventHandler(this.checkedListBox1_ItemCheck);
            //
            // ClbTestForm
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Controls.Add(this.checkedListBox1);
            this.Name = "ClbTestForm";
            this.Text = "ClbTestForm";
            this.ResumeLayout(false);
        }

        void checkedListBox1_ItemCheck(object sender, ItemCheckEventArgs e)
        {
            if (e.CurrentValue == CheckState.Indeterminate)
                e.NewValue = e.CurrentValue;
        }

        private System.Windows.Forms.CheckedListBox checkedListBox1;

        public ClbTestForm()
        {
            InitializeComponent();
            FillIt(8);
        }

        private void FillIt(int n)
        {
            for (int i = 0; i < n; i++)
                if (i % 3 == 0)
                    checkedListBox1.Items.Add(new intCarrier(i), CheckState.Checked);
                else if (i % 3 == 1)
                    checkedListBox1.Items.Add(new intCarrier(i), CheckState.Unchecked);
                else
                    checkedListBox1.Items.Add(new intCarrier(i), CheckState.Indeterminate);
        }
    }

    // silly helper class
    public class intCarrier
    {
        int m_int = 0;

        public override string ToString()
        {
            return "Number " + m_int.ToString();
        }

        public intCarrier(int n)
        {
            m_int = n;
        }
    }

    static class Program
    {
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new ClbTestForm());
        }
    }
}