combobox and commandbutton in one control

[djramc]

hello everyone
i want to have a control with combobox and a button like you see in the attachment.
i have already written these codes but i cannot move the button bit to left. anyone has an idea how should i get like in the attach?

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

namespace project
{
    public partial class ComboBoxWithButton : ComboBox
    {

        public event EventHandler TextChangedAfterValidation;

        public Form parentForm;


        private bool textChanged = false;


        public bool _textChanged { get { return textChanged; } }


        public ComboBoxWithButton()
        {
            InitializeComponent();
        }

        public virtual event EventHandler ClickButton
        {
            add
            {
                this.button1.Click += value;
            }
            remove
            {
                this.button1.Click -= value;
            }
        }
        protected override void OnCreateControl()
        {
            if (!this.Controls.Contains(this.button1))
            {
                this.Controls.Add(this.button1);
                

            }

            base.OnCreateControl();
        }
        private void OnMouseEnter(object sender, EventArgs e)
        {
            if (sender is Button)
            {
                this.button1.Cursor = Cursors.Default;
            }
            else
            {
                this.Cursor = Cursors.IBeam;
            }

        }





        protected override void OnPaint(PaintEventArgs pe)
        {
            base.OnPaint(pe);
        }

   



        public virtual void TextModified()
        {


        }



     

       

        private void button1_Click(object sender, EventArgs e)
        {
            btn1click();
        }


        public virtual void btn1click()
        {

            //MessageBox.Show("intern");
        
        }

        private void ComboBoxWithButton_KeyUp(object sender, KeyEventArgs e)
        {
            if (e.KeyValue == 13)
            {
                ComboBoxWithButton_Validated(sender, e);
            }
        }

        private void ComboBoxWithButton_TextChanged(object sender, EventArgs e)
        {
            this.textChanged = true;
        }

        private void ComboBoxWithButton_Validated(object sender, EventArgs e)
        {
            if (this.textChanged)
            {

                TextModified();


                if (parentForm != null)
                {
                    if (parentForm.GetType() == typeof(frmBetalingenBeheer))
                    {
                        ((frmBetalingenBeheer)parentForm).NaValidatietxtKlantFilter();
                    }
                    else
                    {
                        MessageBox.Show("  parentForm not linked");
                    }
                }


                if (this.TextChangedAfterValidation != null)
                    this.TextChangedAfterValidation(this, new EventArgs());



                this.textChanged = false;

            }
            else return;
        }


    }
}

so i have here 2 controls (combobox and button)
button is docked to right
so i have something like this now



and i want to have like you can see in attach.
button should move slightly to the left
thank you

[HanneSThEGreaT]

This might help :

Extending the ComboBox with C#
http://www.codeguru.com/csharp/cshar...cle.php/c15261