private void butnViewWithLabel_Click(object sender, EventArgs e)
{
var helper = new ProductManager();
dtGridProducts.DataSource = helper.GetProductLabel(cmbLabelGrid.Text.ToString());
txtCountProductGrid.Text = helper.GetAllProductCount(helper.GetProductLabel(cmbLabelGrid.Text.ToString())).ToString();
txtAllPriceGrid.Text = helper.GetAllProductPrice(helper.GetProductLabel(cmbLabelGrid.Text.ToString())).ToString();
}
