private void buttonAddPractice_Click(object sender, EventArgs e)
 {
     FormEdit.FormEditPractice FormEditPractice = new FormEdit.FormEditPractice(-1);
     if (FormEditPractice.ShowDialog() == DialogResult.OK)
     {
         formmain.DataUpdate("Practice");
     }
 }
 private void buttonEditPractice_Click(object sender, EventArgs e)
 {
     if (dataGridViewPractice.CurrentRow != null && dataGridViewPractice.CurrentRow.Index >= 0)
     {
         FormEdit.FormEditPractice FormEditPredmet_Curse = new FormEdit.FormEditPractice((int)dataGridViewPractice["idPracticePractice", dataGridViewPractice.CurrentRow.Index].Value);
         if (FormEditPredmet_Curse.ShowDialog() == DialogResult.OK)
         {
             formmain.DataUpdate("Practice");
         }
     }
 }