private void save_Click(object sender, EventArgs e)
{
if (building == null)
{
isNew = true;
building = new Building();
}
building.Name = txtName.Text;
building.ArabicName = txtArabicName.Text;
if (isNew)
{
da.AddBuilding(building);
}
else
{
da.Update();
}
this.Close();
}