private void ChallengesDataGridView_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
if (e.RowIndex > -1 && e.ColumnIndex > -1)
{
int minimumAge = Int32.Parse(ChallengesDataGridView.Rows[e.RowIndex].Cells[0].Value.ToString());
int maximumAge = Int32.Parse(ChallengesDataGridView.Rows[e.RowIndex].Cells[1].Value.ToString());
string name = ChallengesDataGridView.Rows[e.RowIndex].Cells[2].Value.ToString();
Challenge challenge = ctrl.GetChallengeByProperties(minimumAge, maximumAge, name);
ChallengeChildrenData childrenData = new ChallengeChildrenData(ctrl.GetChildrenById(challenge.Id));
childrenData.Show();
}
}