//OPEN INSERT DIALOG
private void BtnInsert_Click(object sender, EventArgs e)
{
FormInsert formInsert = new FormInsert();
formInsert.ShowDialog();
BtnRefresh_Click(null, null);
}
private void BtnCancel_Click(object sender, EventArgs e)
{
FormInsert formInsert = new FormInsert();
this.Close();
}