Question

Why I’m getting this error when deleting a row in DataGridView control?
How can I address this issue?

Rows cannot be programmatically removed unless the DataGridView is data-bound to an IBindingList that supports change notification and allows deletion.

---

public partial class Form1 : Form
    {
        List<Person> person = new List<Person>();

        public Form1()
        {
            InitializeComponent();
        }

        void Form1Load(object sender, EventArgs e)
        {
            person.Add(new Person("McDonalds", "Ronald"));
            person.Add(new Person("Rogers", "Kenny"));          
            dataGridView1.DataSource = person;
        }

        void BtnDeleteClick(object sender, EventArgs e)
        {
            dataGridView1.Rows.RemoveAt(dataGridView1.SelectedRows[0].Index);
        }
    }

Answer 1

List<T> does not implement IBindingList,

public class List<T> : IList<T>, ICollection<T>, 
    IEnumerable<T>, IList, ICollection, IEnumerable

You need to use a class that implements IBindingList

Use a BindingList<T> or DataTable instead