Cannot convert Lambda expression to delegate type

Question

Hi

 Error - Cannot convert Lambda expression to delegate type because it is not a delegate type

Below is the code

                dgvWindows.BeginInvoke(() =>
                {
                    if (!_isRunning)
                        return;

                    var row = dgvWindows.Rows[dgvWindows.Rows.Add()];
                    row.Cells[0].Value = handle;
                    row.Cells[1].Value = _driver == null ? string.Empty : _driver.Title;
                    row.Cells[2].Value = state;
                    row.Cells[3].Value = $"{_duration.Hours:00}:{_duration.Minutes:00}:{_duration.Seconds:00}";
                    row.HeaderCell.Value = row.Index + 1;

                    BeginInvoke(() => Text = $"YouTube Tools - {row.Index + 1}");
                });

Thanks