Thanks for your answear Bonnie, I did it but now I cann't find my class in "Add/Remove items" Where is it?

>Rodolfo,
>
>Basically, you'll want a class library that contains your sub-classed UI controls, like textbox, button, etc. Something like this:
>

>using System;
>using System.Data;
>using System.Web;
>using System.Web.UI.WebControls;
>using System.Web.UI.HtmlControls;
>
>namespace MyCompany.WebUI.MyClasses
>{
>	public class MyLabel: System.Web.UI.WebControls.Label
>	{
>		private string m_MyProperty;
>
>		// properties
>		public string MyProperty
>		{
>		   get {return this.m_MyProperty;}
>		   set {this.m_MyProperty = value;}
>		}
>
>	}
>
>	public class MyTextBox : System.Web.UI.WebControls.TextBox
>	{
>		// code here
>	}
>
>	public class MyButton : System.Web.UI.WebControls.Button
>	{
>		// code here
>	}
>}
>

>
>Add these to the ToolBox by right-clicking on the ToolBox and choosing Add/Remove Items.
>
>~~Bonnie
>
>
>
>>How could I create a class based on the system basic class "label", then drag and drop it on a web form, and finally be able to modify its methods and properties through the properties panel as I am used to doing with VFP.