A Simplified Color Guide in C#
By Csaba Hatvany

Jayant M. contributed with a program generating all the colors supported in C# by their names. Here is a simplified version of this program. To loop throughout all the known color's names I use GetName method of the Enum struct and to get the corresponding Color object I use the FromName method of the Color class.

Download SimplifiedColorGuide.zip

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

namespace ColorGuide
{
 /// <summary>
 /// Summary description for Form1.
 /// </summary>
 public class Form1 : System.Windows.Forms.Form
 {
  private System.ComponentModel.IContainer components;
  private System.Windows.Forms.ToolTip toolTip1;

  private Panel panel1 = new Panel(); 

  public Form1()
  {
   //
   // Required for Windows Form Designer support
   //
   InitializeComponent();

   //
   // TODO: Add any constructor code after InitializeComponent call
   //
   
   // Set up the delays for the ToolTip.
   toolTip1.AutoPopDelay = 5000;
   toolTip1.InitialDelay = 1000;
   toolTip1.ReshowDelay = 500;
   // Force the ToolTip text to be displayed whether or not the form is active.
   toolTip1.ShowAlways = true;
   // Initialize the Panel control.
   panel1.Location = new Point(ClientRectangle.Left + 5,ClientRectangle.Top + 5);
   panel1.Size = new Size(ClientRectangle.Right-5, ClientRectangle.Bottom-5);   
   panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D; 
   // Add the Panel control to (inside) the form. 
   this.Controls.Add(panel1);   

   int ystart = ClientRectangle.Top;
   // loop throughout  all the known colors
   foreach(string clrName in Enum.GetNames(typeof(KnownColor)))
   {
    Label lbl = new Label();  
    lbl.Size = new Size(panel1.Width-20, 20);   
    lbl.Font = new System.Drawing.Font("Comic Sans MS",10,FontStyle.Bold);   
    lbl.Text = clrName;
    
    lbl.Location = new Point(ClientRectangle.Left,ystart); 
    Color backcolor = Color.FromName(clrName);
    lbl.BackColor = backcolor;
    // set the tooltip
    toolTip1.SetToolTip(lbl, clrName);
    Color forecolor = Color.FromArgb(255-backcolor.R,255-backcolor.G,255-backcolor.B);
    lbl.ForeColor = forecolor;
    lbl.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D; 
    // Console.WriteLine("{0},{1},{2},{3}<->{4},{5},{6},{7}",
    // backcolor.A, backcolor.R, backcolor.G, backcolor.B, 
    // forecolor.A, forecolor.R, forecolor.G, forecolor.B);
     
    // Add the Label control to (inside) the Panel.
    panel1.Controls.Add(lbl);      
    if((lbl.Location.Y > panel1.Location.Y))
    {
     panel1.AutoScroll = true;    
    }   
    ystart += 20;
   }
   this.Size = new Size(315, 300);
   this.Text = "A Color Guide - JAYANT Simplified";
   this.MaximizeBox = false;
   this.FormBorderStyle = FormBorderStyle.FixedDialog;
   this.StartPosition = FormStartPosition.CenterScreen;   
  }

  /// <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.components = new System.ComponentModel.Container();
   this.toolTip1 = new System.Windows.Forms.ToolTip(this.components);
   // 
   // Form1
   // 
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(292, 273);
   this.Name = "Form1";
   this.Text = "Form1";

  }
  #endregion

  /// <summary>
  /// The main entry point for the application.
  /// </summary>
  [STAThread]
  static void Main() 
  {
   Application.Run(new Form1());
  }
 }
}