如何在DataGridView中通过键入字符来关注单元格

using System;
using System.Data;
using System.Windows.Forms;

namespace DataGridViewExample
{
    public partial class Form1 : Form
    {
        private DataTable dataTable;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // 绑定数据源
            dataTable = new DataTable();
            dataTable.Columns.Add("ID", typeof(int));
            dataTable.Columns.Add("Name", typeof(string));
            dataTable.Rows.Add(1, "John");
            dataTable.Rows.Add(2, "Amy");
            dataTable.Rows.Add(3, "Tom");
            dataGridView1.DataSource = dataTable;
        }

        private void dataGridView1_KeyPress(object sender, KeyPressEventArgs e)
        {
            // 获取当前选中的单元格
            DataGridViewCell currentCell = dataGridView1.CurrentCell;

            // 判断是否处于编辑模式
            if (dataGridView1.IsCurrentCellInEditMode)
            {
                // 获取当前编辑的控件
                Control editingControl = dataGridView1.EditingControl;

                // 判断编辑的控件类型是否为TextBox
                if (editingControl is TextBox textBox)
                {
                    // 根据键入的字符执行相应操作
                    if (e.KeyChar == 'A' || e.KeyChar == 'a')
                    {
                        // 筛选以'A'开头的数据
                        DataView dataView = dataTable.DefaultView;
                        dataView.RowFilter = $"Name LIKE 'A%'";
                        dataGridView1.DataSource = dataView;
                    }
                    else if (e.KeyChar == 'T' || e.KeyChar == 't')
                    {
                        // 定位到第一个以'T'开头的单元格
                        DataGridViewCell targetCell = dataGridView1.Rows
                            .Cast<DataGridViewRow>()
                            .SelectMany(row => row.Cells.Cast<DataGridViewCell>())
                            .FirstOrDefault(cell => cell.Value.ToString().StartsWith("T"));
                        if (targetCell != null)
                        {
                            dataGridView1.CurrentCell = targetCell;
                            dataGridView1.BeginEdit(true);
                        }
                    }
                }
            }
        }
    }
}