C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Runtime.InteropServices;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace Combo
{

    public class Combo //:IDisposable
    {
        private System.Windows.Forms.ComboBox li = new System.Windows.Forms.ComboBox(); //object
       // public event EventHandler SelectedIndexChanged; //The event handler name must match the event name.
       // private object[] eventObject; //One object[] for each event (one event here).
        public void Addselect(Control FormName, string name, int top, int left, int width, int height, string Text)
        {
            li.Top = top;
            li.Left = left;
            li.Width = width;
            li.Height = height;
            li.Name = name;
            li.FlatStyle = FlatStyle.Flat;
            li.CreateGraphics();
            li.Text = Text;
            li.IntegralHeight = false;
            li.MaxDropDownItems = 5;
            li.DropDownStyle = ComboBoxStyle.DropDown;
            li.Size = new System.Drawing.Size(136, 81);
            li.BackColor = System.Drawing.Color.DarkGray;
           

            FormName.Controls.Add(li);

           // eventObject = new object[] { this, "SelectedIndexChanged" }; //This is the object that will pass with the event.
            //It must be in that format exactly.
         //   li.SelectedIndexChanged += new EventHandler(SelectedIndexChanged);
//


        }

// private void SelectedIndexChanged(object sender, EventArgs e)
//       {
 //          if (SelectedIndexChanged != null) //You must test this.
 //           {
  //              SelectedIndexChanged(eventObject, null);
  //         }
  //    }





        public void Additems(string[] items)
        {
            li.Items.AddRange(items);
        }

        public bool Enabled
        {
            get { return li.Enabled; }
            set { li.Enabled = value; }
        }
        public bool Visible
        {
            get { return li.Visible; }
            set { li.Visible = value; }
        }


    }
}

Error	1	The type 'Combo.Combo' already contains a definition for 'SelectedIndexChanged'	D:\SelectboxLibrary\SelectboxLibrary\Class1.cs	47	22	SelectboxLibrary

glennPattonWork wrote:

a colleague got some of source hacked it around