private void ucSearch_Load(object sender, EventArgs e)
{
common = new CommonDal();
cbMarka.DataSource = common.GetBrandsByIdName();
cbMarka.SelectedIndex = -1;
cbModel.DataSource = common.GetModelsByIdName();
cbModel.SelectedIndex = -1;
cmbCity.DataSource = common.GetCityByIdName();
cmbCity.SelectedIndex = -1;
}