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

  public class Test
  {
    static void Main() 
    {
        System.Windows.Forms.ColorDialog colorDlg = new System.Windows.Forms.ColorDialog();    
      colorDlg.AnyColor = true;
      colorDlg.ShowHelp = true;  

      if (colorDlg.ShowDialog() != DialogResult.Cancel)
      {
        string strARGB = colorDlg.Color.ToString();
        Console.WriteLine(strARGB);
      }

    }

  }


           
          

   

/*
Professional Windows GUI Programming Using C#
by Jay Glynn, Csaba Torok, Richard Conway, Wahid Choudhury, 
   Zach Greenvoss, Shripad Kulkarni, Neil Whitlow

Publisher: Peer Information
ISBN: 1861007663
*/

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

namespace ColorFontDialog
{
    /// <summary>
    /// Summary description for ColorFontDialog.
    /// </summary>
    public class ColorFontDialog : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label label1;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public ColorFontDialog()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();
            this.Text = "Font and Color Dialogs";
            this.button1.Text = "&amp;Font";
            this.button2.Text = "&amp;Color";
            this.label1.Text = "Change my FONT and COLOR!";

            //
            // 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.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(24, 8);
            this.button1.Name = "button1";
            this.button1.TabIndex = 0;
            this.button1.Text = "button1";
            this.button1.Click += new System.EventHandler(this.button1_Click_1);
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(120, 8);
            this.button2.Name = "button2";
            this.button2.TabIndex = 1;
            this.button2.Text = "button2";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // label1
            // 
            this.label1.Location = new System.Drawing.Point(8, 48);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(280, 48);
            this.label1.TabIndex = 2;
            this.label1.Text = "label1";
            // 
            // ColorFontDialog
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(292, 101);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.label1,
                                                                          this.button2,
                                                                          this.button1});
            this.Name = "ColorFontDialog";
            this.Text = "ColorFontDialog";
            this.ResumeLayout(false);

        }
        #endregion

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main() 
        {
            Application.Run(new ColorFontDialog());
        }
        private void button2_Click(object sender, System.EventArgs e)
        {
            ColorDialog cd = new ColorDialog();
            cd.AllowFullOpen = true;   // allow custom colors
            //cd.FullOpen = true;   // shows custom colors automatically
            cd.Color = Color.DarkBlue;  // sets the custom color
            //cd.Color = Color.Blue;   // set the basic color

            if(cd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                this.label1.ForeColor = cd.Color;
        }
        private void button1_Click_1(object sender, System.EventArgs e)
        {
            FontDialog fd = new FontDialog();
            fd.ShowColor = true;
            fd.Color = Color.Blue;
            fd.ShowApply = true;   // ColorDialog does not provide this option!!!
            fd.Apply += new EventHandler(ApplyFont);
            if(fd.ShowDialog() != System.Windows.Forms.DialogResult.Cancel)
                ChangeFont(fd);
        }

        private void ApplyFont(object o, EventArgs ea)
        {
            ChangeFont((FontDialog)o);
        }

        private void ChangeFont(FontDialog fd)
        {
            this.label1.Font = fd.Font;
            this.label1.ForeColor = fd.Color;
        }
    }
}

           
          

   


using System;
using System.Drawing;
using System.Windows.Forms;
public class Select : Form {
  private Button draw = new Button();
  private ComboBox color = new ComboBox();

  public Select( ) {
    draw.Text = "Draw";
    color.Text = "Choose a color";
    Size = new Size(500,250);

    int w = 20;
    draw.Location = new Point(20,30);
    color.Location = new Point(w += 10 + color.Width, 30);

    color.Items.Add("Red");
    color.Items.Add("Green");
    color.Items.Add("Blue");

    Controls.Add(draw);
    Controls.Add(color);

    draw.Click += new EventHandler(Draw_Click);
  } 

  protected void Draw_Click(Object sender, EventArgs e) {
    if (color.SelectedItem.ToString() == "Red" )
      Console.WriteLine("It is red.");
    else if (color.SelectedItem.ToString() == "Green")
      Console.WriteLine("It is green.");
    else
      Console.WriteLine("It is blue.");
  }
  static void Main() {
    Application.Run(new Select());
  }
}
           
          

   

using System;
using System.Drawing;
using System.Windows.Forms;
public class Select : Form {
  private Button draw = new Button();
  private ComboBox color = new ComboBox();

  public Select( ) {
    draw.Text = "Draw";
    color.Text = "Choose a color";
    Size = new Size(500,250);

    int w = 20;
    draw.Location = new Point(20,30);
    color.Location = new Point(w += 10 + color.Width, 30);

    color.Items.Add("Red");
    color.Items.Add("Green");
    color.Items.Add("Blue");

    Controls.Add(draw);
    Controls.Add(color);

    draw.Click += new EventHandler(Draw_Click);
  } 

  protected void Draw_Click(Object sender, EventArgs e) {
    if (color.SelectedItem.ToString() == "Red" )
      Console.WriteLine("It is red.");
    else if (color.SelectedItem.ToString() == "Green")
      Console.WriteLine("It is green.");
    else
      Console.WriteLine("It is blue.");
  }
  static void Main() {
    Application.Run(new Select());
  }
}

           
          

   

/*
Professional Windows GUI Programming Using C#
by Jay Glynn, Csaba Torok, Richard Conway, Wahid Choudhury, 
   Zach Greenvoss, Shripad Kulkarni, Neil Whitlow

Publisher: Peer Information
ISBN: 1861007663
*/

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

namespace CheckBox
{
  /// <summary>
  /// Summary description for CheckBoxStyle.
  /// </summary>
  public class CheckBoxStyle : System.Windows.Forms.Form
  {
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.GroupBox groupBox1;
    private System.Windows.Forms.CheckBox chk_option1;
    private System.Windows.Forms.CheckBox chk_option2;
    private System.Windows.Forms.CheckBox chk_option3;
    private System.Windows.Forms.CheckBox chk_option4;
    private System.Windows.Forms.Button button1;
    /// <summary>
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.Container components = null;

    public CheckBoxStyle()
    {
      //
      // 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.chk_option1 = new System.Windows.Forms.CheckBox();
      this.label1 = new System.Windows.Forms.Label();
      this.chk_option2 = new System.Windows.Forms.CheckBox();
      this.chk_option3 = new System.Windows.Forms.CheckBox();
      this.chk_option4 = new System.Windows.Forms.CheckBox();
      this.groupBox1 = new System.Windows.Forms.GroupBox();
      this.button1 = new System.Windows.Forms.Button();
      this.groupBox1.SuspendLayout();
      this.SuspendLayout();
      // 
      // chk_option1
      // 
      this.chk_option1.CheckAlign = System.Drawing.ContentAlignment.MiddleRight;
      this.chk_option1.Location = new System.Drawing.Point(40, 24);
      this.chk_option1.Name = "chk_option1";
      this.chk_option1.Size = new System.Drawing.Size(192, 24);
      this.chk_option1.TabIndex = 0;
      this.chk_option1.Text = "Windows 2000 / Windows XP";
      this.chk_option1.ThreeState = true;
      // 
      // label1
      // 
      this.label1.Location = new System.Drawing.Point(16, 24);
      this.label1.Name = "label1";
      this.label1.Size = new System.Drawing.Size(296, 16);
      this.label1.TabIndex = 1;
      this.label1.Text = "The following products are developed by Microsoft Corp.";
      // 
      // chk_option2
      // 
      this.chk_option2.Location = new System.Drawing.Point(40, 56);
      this.chk_option2.Name = "chk_option2";
      this.chk_option2.Size = new System.Drawing.Size(192, 24);
      this.chk_option2.TabIndex = 0;
      this.chk_option2.Text = "JAVA";
      // 
      // chk_option3
      // 
      this.chk_option3.Appearance = System.Windows.Forms.Appearance.Button;
      this.chk_option3.ImageAlign = System.Drawing.ContentAlignment.MiddleRight;
      this.chk_option3.Location = new System.Drawing.Point(40, 88);
      this.chk_option3.Name = "chk_option3";
      this.chk_option3.Size = new System.Drawing.Size(192, 24);
      this.chk_option3.TabIndex = 0;
      this.chk_option3.Text = "Visual C# and .NET";
      // 
      // chk_option4
      // 
      this.chk_option4.Appearance = System.Windows.Forms.Appearance.Button;
      this.chk_option4.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
      this.chk_option4.Location = new System.Drawing.Point(40, 120);
      this.chk_option4.Name = "chk_option4";
      this.chk_option4.Size = new System.Drawing.Size(192, 24);
      this.chk_option4.TabIndex = 0;
      this.chk_option4.Text = "Oracle Database";
      // 
      // groupBox1
      // 
      this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] {
                                          this.chk_option2,
                                          this.chk_option4,
                                          this.chk_option3,
                                          this.chk_option1});
      this.groupBox1.Location = new System.Drawing.Point(16, 56);
      this.groupBox1.Name = "groupBox1";
      this.groupBox1.Size = new System.Drawing.Size(280, 152);
      this.groupBox1.TabIndex = 2;
      this.groupBox1.TabStop = false;
      this.groupBox1.Text = "Select All Correct Options";
      // 
      // button1
      // 
      this.button1.Location = new System.Drawing.Point(16, 216);
      this.button1.Name = "button1";
      this.button1.TabIndex = 3;
      this.button1.Text = "Done ";
      this.button1.Click += new System.EventHandler(this.button1_Click);
      // 
      // CheckBoxStyle
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(328, 253);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.button1,
                                      this.groupBox1,
                                      this.label1});
      this.Name = "CheckBoxStyle";
      this.Text = "Check Boxes";
      this.Load += new System.EventHandler(this.CheckBoxStyle_Load);
      this.groupBox1.ResumeLayout(false);
      this.ResumeLayout(false);

    }
    #endregion

    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main() 
    {
      Application.Run(new CheckBoxStyle());
    }

    private void CheckBoxStyle_Load(object sender, System.EventArgs e)
    {
      // Load the Image that we want to display on the button
      Image imga = Image.FromFile("WRENCH.ICO");
      // Assign the Image for the checkbox
      chk_option3.Image = imga;
      // Align the image on the face of the checkbox
      chk_option3.ImageAlign = ContentAlignment.MiddleRight;
      // Select the background color for the checkbox
      chk_option3.BackColor = Color.LightBlue ;

      // Load the Image that we want to display on the button
      imga = Image.FromFile("EYE.ICO");
      // Assign the Image for the checkbox
      chk_option4.Image = imga;
      // Align the image on the face of the checkbox
      chk_option4.ImageAlign = ContentAlignment.MiddleCenter;
      // Select the background color for the checkbox
      chk_option4.BackColor = Color.LightBlue ;

    }

    private void button1_Click(object sender, System.EventArgs e)
    {
      string str_opt_selected = "Options Selected are ..
" ;
  
      // Check which options are selected for every checkbox
      // using the Checked property

      if ( chk_option1.Checked ) 
        str_opt_selected = str_opt_selected + chk_option1.Text + "
";
      if ( chk_option2.Checked ) 
        str_opt_selected = str_opt_selected + chk_option2.Text + "
";
      if ( chk_option3.Checked ) 
        str_opt_selected = str_opt_selected + chk_option3.Text + "
";
      if ( chk_option4.Checked ) 
        str_opt_selected = str_opt_selected + chk_option4.Text + "
";

      MessageBox.Show(str_opt_selected , "Checked Options");

    }
  }
}

           
          


CheckBox.zip( 33 k)

   

/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace CheckButton
{
  /// <summary>
  /// Summary description for FormCheckButton.
  /// </summary>
  public class FormCheckButton : System.Windows.Forms.Form
  {
    private System.Windows.Forms.CheckBox checkBox1;
    private System.Windows.Forms.Button button1;
    private System.ComponentModel.IContainer components;

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

      //
      // TODO: Add any constructor code after InitializeComponent call
      //
      checkBox1.Appearance = Appearance.Button;
      checkBox1.FlatStyle = FlatStyle.System;
      checkBox1.TextAlign = ContentAlignment.MiddleCenter;
    }

    /// <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.button1 = new System.Windows.Forms.Button();
      this.checkBox1 = new System.Windows.Forms.CheckBox();
      this.SuspendLayout();
      // 
      // button1
      // 
      this.button1.Location = new System.Drawing.Point(72, 40);
      this.button1.Name = "button1";
      this.button1.Size = new System.Drawing.Size(104, 32);
      this.button1.TabIndex = 1;
      this.button1.Text = "button1";
      // 
      // checkBox1
      // 
      this.checkBox1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
      this.checkBox1.Location = new System.Drawing.Point(72, 88);
      this.checkBox1.Name = "checkBox1";
      this.checkBox1.Size = new System.Drawing.Size(104, 32);
      this.checkBox1.TabIndex = 0;
      this.checkBox1.Text = "checkBox1";
      // 
      // FormCheckButton
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 141);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.button1,
                                      this.checkBox1});
      this.Name = "FormCheckButton";
      this.Text = "FormCheckButton";
      this.ResumeLayout(false);

    }
    #endregion

    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main() 
    {
      Application.Run(new FormCheckButton());
    }
  }
}



           
          

using System;
using System.Drawing;
using System.Windows.Forms;

class RadioButtons: Form
{
bool bFillEllipse;
Color colorEllipse;

static void Main()
{
Application.Run(new RadioButtons());
}
RadioButtons()
{
ResizeRedraw = true;
string[] astrColor = { “Black”, “Blue”, “Green”, “Cyan”};

GroupBox grpbox = new GroupBox();
grpbox.Parent = this;
grpbox.Text = “Color”;
grpbox.Location = new Point(Font.Height / 2, Font.Height / 2);
grpbox.Size = new Size(9 * Font.Height, (3 * astrColor.Length + 4) * Font.Height / 2);

for (int i = 0; i < astrColor.Length; i++) { RadioButton radiobtn = new RadioButton(); radiobtn.Parent = grpbox; radiobtn.Text = astrColor[i]; radiobtn.Location = new Point(Font.Height,3 * (i + 1) * Font.Height / 2); radiobtn.Size = new Size(7 * Font.Height,3 * Font.Height / 2); radiobtn.CheckedChanged += new EventHandler(RadioButtonOnCheckedChanged); radiobtn.Checked = true; } CheckBox chkbox = new CheckBox(); chkbox.Parent = this; chkbox.Text = "Fill Ellipse"; chkbox.Location = new Point(Font.Height, 3 * (astrColor.Length + 2) * Font.Height / 2); chkbox.Size = new Size(Font.Height * 7, 3 * Font.Height / 2); chkbox.CheckedChanged += new EventHandler(CheckBoxOnCheckedChanged); } void RadioButtonOnCheckedChanged(object obj, EventArgs ea) { RadioButton radiobtn = (RadioButton) obj; if(radiobtn.Checked) { colorEllipse = Color.FromName(radiobtn.Text); Invalidate(false); } } void CheckBoxOnCheckedChanged(object obj, EventArgs ea) { bFillEllipse = ((CheckBox)obj).Checked; Invalidate(false); } protected override void OnPaint(PaintEventArgs pea) { Graphics grfx = pea.Graphics; Rectangle rect = new Rectangle(10 * Font.Height, 0, ClientSize.Width - 10 * Font.Height - 1, ClientSize.Height - 1); if(bFillEllipse) grfx.FillEllipse(new SolidBrush(colorEllipse), rect); else grfx.DrawEllipse(new Pen(colorEllipse), rect); } } [/csharp]