Creating a Simple User Control and Adding it to the Toolbox

namespace TimerTickControl
{
    [ToolboxBitmap(@"D:\CSharp Project Examples\TimerTickControl\TimerTickControl\LiveTimer.bmp")]
    public partial class TimerTick : UserControl
    {
        public TimerTick()
        {
            InitializeComponent();
        }
    }
}

private void timer1_Tick(object sender, EventArgs e)
{
    lblTimerTick.Text = DateTime.Now.ToString();
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace TimerTickControl
{
    [ToolboxBitmap(@"D:\CSharp Project Examples\TimerTickControl\TimerTickControl\LiveTimer.bmp")]
    public partial class TimerTick : UserControl
    {
        public TimerTick()
        {
            InitializeComponent();
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
            lblTimerTick.Text = DateTime.Now.ToString();
        }
    }
}

9. Build the solution. You can locate the Path at "\bin\debug\".

10. Now let us try to add the control to the project. Create a new Windows Application Project .

11. Now add a reference ("Project" - > "Add Reference") to the DLL by locating it from the Path where it is. Now the DLL has been added to your project.

12. Let us add the control to our Toolbox. Add a new tab in control box (here I named it "MyControls").

13. Right-Click on the "My Controls" Tab and select "Choose Items". The following dialog appears:

14. Now click "Browse" and select the DLL, the control with the icon is displayed as shown here:

15. Click "OK" to add the control to the Toolbox. That is, our control is ready to be added to the project.

16. Now try adding the control to the project by double-clicking on it.

17. Once the control has been added, it will show a running timer text in the control.