Form Ownership : MDI : GUI Windows Form C# Source Code

    

/*
User Interfaces in C#: Windows Forms and Custom Controls
by Matthew MacDonald

Publisher: Apress
ISBN: 1590590457
*/

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace FormOwnership
{
    /// <summary>
    /// Summary description for Owner.
    /// </summary>
    public class Owner : System.Windows.Forms.Form
    {
        internal System.Windows.Forms.Button cmdReleaseOwnership;
        internal System.Windows.Forms.Button cmdAddOwnership;
        private System.Windows.Forms.Label label1;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public Owner()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if(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.cmdReleaseOwnership = new System.Windows.Forms.Button();
            this.cmdAddOwnership = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // cmdReleaseOwnership
            // 
            this.cmdReleaseOwnership.FlatStyle = System.Windows.Forms.FlatStyle.System;
            this.cmdReleaseOwnership.Location = new System.Drawing.Point(152, 196);
            this.cmdReleaseOwnership.Name = "cmdReleaseOwnership";
            this.cmdReleaseOwnership.Size = new System.Drawing.Size(128, 32);
            this.cmdReleaseOwnership.TabIndex = 3;
            this.cmdReleaseOwnership.Text = "Remove Ownership";
            this.cmdReleaseOwnership.Click += new System.EventHandler(this.cmdReleaseOwnership_Click);
            // 
            // cmdAddOwnership
            // 
            this.cmdAddOwnership.FlatStyle = System.Windows.Forms.FlatStyle.System;
            this.cmdAddOwnership.Location = new System.Drawing.Point(16, 196);
            this.cmdAddOwnership.Name = "cmdAddOwnership";
            this.cmdAddOwnership.Size = new System.Drawing.Size(120, 32);
            this.cmdAddOwnership.TabIndex = 2;
            this.cmdAddOwnership.Text = "Set Ownership";
            this.cmdAddOwnership.Click += new System.EventHandler(this.cmdAddOwnership_Click);
            // 
            // label1
            // 
            this.label1.Location = new System.Drawing.Point(40, 36);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(216, 80);
            this.label1.TabIndex = 4;
            this.label1.Text = "To test form ownership, try minimizing this form when the second form is owned. T" +
                "hen try, minimizing it when the second form is not owned.";
            // 
            // Owner
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
            this.ClientSize = new System.Drawing.Size(292, 242);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.label1,
                                                                          this.cmdReleaseOwnership,
                                                                          this.cmdAddOwnership});
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
            this.Name = "Owner";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "Owner";
            this.Load += new System.EventHandler(this.Owner_Load);
            this.ResumeLayout(false);

        }
        #endregion

        private OwnedForm frmOwned = new OwnedForm();

        private void Owner_Load(object sender, System.EventArgs e)
        {
            this.Show();
            frmOwned.Show();
        }

        private void cmdAddOwnership_Click(object sender, System.EventArgs e)
        {
            this.AddOwnedForm(frmOwned);
            frmOwned.lblState.Text = "I'm Owned";
        }

        private void cmdReleaseOwnership_Click(object sender, System.EventArgs e)
        {
            this.RemoveOwnedForm(frmOwned);
            frmOwned.lblState.Text = "I'm Free!";
        }

        [STAThread]
        static void Main() 
        {
            Application.Run(new Owner());
        }
    }
    /// <summary>
    /// Summary description for OwnedForm.
    /// </summary>
    public class OwnedForm : System.Windows.Forms.Form
    {
        public System.Windows.Forms.Label lblState;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public OwnedForm()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if(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.lblState = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // lblState
            // 
            this.lblState.Location = new System.Drawing.Point(8, 8);
            this.lblState.Name = "lblState";
            this.lblState.Size = new System.Drawing.Size(184, 56);
            this.lblState.TabIndex = 1;
            // 
            // OwnedForm
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
            this.ClientSize = new System.Drawing.Size(208, 78);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.lblState});
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
            this.Name = "OwnedForm";
            this.StartPosition = System.Windows.Forms.FormStartPosition.Manual;
            this.Text = "OwnedForm";
            this.ResumeLayout(false);

        }
        #endregion
    }


}