private void updateLesson_Click(object sender, EventArgs e)
{
int selectedrowindex = dataGridView1.SelectedCells[0].RowIndex;
DataGridViewRow selectedRow = dataGridView1.Rows[selectedrowindex];
form_Lesson fm = new form_Lesson(this.isEnglish, true, Convert.ToInt32(selectedRow.Cells["iID"].Value));
fm.ShowDialog();
}
private void button1_Click(object sender, EventArgs e)
{
form_Lesson fm = new form_Lesson(this.isEnglish, false, 0);
fm.ShowDialog();
}