MODIFIER SES PROPRES CONTROLS

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

//Une DLL pour les controls personnalisész
namespace MesControls
{
public enum ValidationType
{
	Text=0,
	Numeric,
	Tel,
	Nom,
	DoubleValue,
}
public class MyTextBox : System.Windows.Forms.TextBox
{
	int intValidType=(int)ValidationType.Text;
	Color focusColor = Color.White;
	bool letKeyBoardAction = true;

	public MyTextBox()
	{
		this.BorderStyle = BorderStyle.FixedSingle;	
		this.Text = "";

		this.KeyPress    += new KeyPressEventHandler(ssOnKeyPress);
		this.LostFocus  +=new EventHandler(ssOnLostFocus); 
		this.GotFocus += new EventHandler(ssOnGotFocus);
		this.Validating += new CancelEventHandler(ssOnValidating);
		this.KeyDown += new KeyEventHandler(ssOnKeyDown);
	}

		[Description("La couleru utilisé lorsque le control a le Focus")]
	public Color FocusColor
	{
		get
		{
			return focusColor;
		}
		set
		{
			focusColor = value;
		}
	}
		
	public ValidationType ValidateFor
	{
		get
		{
			return (ValidationType)intValidType;
		}
		set	
		{
			intValidType =(int)value;
		}
	}
		
	public bool LetKeyBoardAction
	{
		get
		{
			return letKeyBoardAction;
		}
		set	
		{
			letKeyBoardAction = value;
		}
	}
		

	protected void ssOnLostFocus(object sender,EventArgs e)
	{
		this.BackColor = Color.White;
	}
	protected void ssOnGotFocus(object sender,EventArgs e)
	{
		this.BackColor = FocusColor;
	}


	private void ssOnKeyPress(object sender, KeyPressEventArgs e)
	{
		try{
			switch(intValidType){
			case (int)ValidationType.Text:
				switch(this.SelectionStart){
					case 0:case 1:
						if(!char.IsLetterOrDigit(e.KeyChar)&& e.KeyChar != 8)
								e.Handled = true;
							break;
					}
				break;
			case (int)ValidationType.Numeric:
				if(!char.IsDigit(e.KeyChar) && e.KeyChar != 8){
							e.Handled = true;
					}
				break;
				case (int)ValidationType.Tel:
				switch(this.SelectionStart){
					case 0:case 1:case 2:case 4:case 5:case 7:case 8:case 10:case 11:
						if(!char.IsDigit(e.KeyChar)&& e.KeyChar != 8)
								e.Handled = true;
							break;
						case 3:case 6:case 9:
							if(char.Parse("/") != e.KeyChar && e.KeyChar != 8)
								e.Handled = true;
							break;	
					}
						break;
					case (int)ValidationType.Nom:
					switch(this.SelectionStart){
						case 0:case 1:
							if(!char.IsLetter(e.KeyChar)&& e.KeyChar != 8)
								e.Handled = true;
							break;
						default:
							if(!char.IsLetter(e.KeyChar) && e.KeyChar != 8 && !char.IsWhiteSpace(e.KeyChar))
								e.Handled = true;
							break;	
					}
						break;
					case (int)ValidationType.DoubleValue:
						string decSep = NumberFormatInfo.CurrentInfo.NumberDecimalSeparator;
						if(char.Parse(decSep) != e.KeyChar && !char.IsDigit(e.KeyChar) &&
							e.KeyChar != 8)
						{

							e.Handled = true;
						}
						else 
						{
							if(char.Parse(decSep) == e.KeyChar)
							{
								if(Text.IndexOf(decSep) != -1)
									e.Handled = true;
							}						
						}
						break;
				}
			}
			catch{}
		}
		private void ssOnKeyDown(object sender, KeyEventArgs e)
		{
			if(letKeyBoardAction == true)
			{
				if(e.Modifiers == System.Windows.Forms.Keys.Control && e.KeyCode == System.Windows.Forms.Keys.C)
					this.Copy();
				if(e.Modifiers == System.Windows.Forms.Keys.Control && e.KeyCode == System.Windows.Forms.Keys.V)
					this.Paste();
				if(e.Modifiers == System.Windows.Forms.Keys.Control && e.KeyCode == System.Windows.Forms.Keys.X)
					this.Cut();
			}
		}
		private void ssOnValidating(object sender, CancelEventArgs e)
		{
			if(intValidType == (int)ValidationType.DoubleValue)
			{
				try
				{
					double val = 0;
					val = double.Parse(Text);
					Text = val.ToString();
				}
				catch
				{
					Text = "0";
				}			
				
			}
		}

	}
}