VisualComponents/VisualComponentsLib/MyDataGridView.cs

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

namespace VisualComponentsLib
{
    public partial class MyDataGridView : UserControl
    {


        public MyDataGridView()
        {
            InitializeComponent();
        }

        private void ButtonAdd_Click(object sender, EventArgs e)
        {

        }

        //полная очистка
        private void ButtonClear_Click(object sender, EventArgs e)
        {
            dataGridView.Rows.Clear();
        }
    }
}