private void button_ekle_Click(object sender, EventArgs e)
        {
            Add_Malzemeler addMalzeme = new Add_Malzemeler()
            {
                isUpdate = false
            };

            addMalzeme.ShowDialog();
        }
 private void button_malzeme_guncelle_Click(object sender, EventArgs e)
 {
     if (Items.panelMalzemeler.dataGridview.Rows.Count > 0)
     {
         DataGridView   Dtg        = Items.panelMalzemeler.dataGridview;
         Add_Malzemeler addMalzeme = new Add_Malzemeler()
         {
             isUpdate     = true,
             _Selectid    = Dtg.Rows[Dtg.CurrentCell.RowIndex].Cells["Id"].Value.ToString(),
             _Selectad    = Dtg.Rows[Dtg.CurrentCell.RowIndex].Cells["Adı"].Value.ToString(),
             _Selectfiyat = Dtg.Rows[Dtg.CurrentCell.RowIndex].Cells["Fiyat"].Value.ToString()
         };
         addMalzeme.ShowDialog();
     }
 }