WinForms C#DataGridView强制刷新

private void button1_Click(object sender, EventArgs e)
{
    // 更新数据源
    dataGridView1.DataSource = GetData();

    // 强制刷新DataGridView控件
    dataGridView1.Refresh();
}

private DataTable GetData()
{
    // 获取数据源
    DataTable dataTable = new DataTable();
    dataTable.Columns.Add("Column1");
    dataTable.Columns.Add("Column2");
    dataTable.Rows.Add("Row1", "Data1");
    dataTable.Rows.Add("Row2", "Data2");
    return dataTable;
}