private void cbCategoryRepair_SelectedIndexChanged(object sender, EventArgs e)
{
db.SearchNameRepairs(cbCategoryRepair.Text.ToString(), cbNameRepair);
}
private void cbCategoryRepairs_SelectedIndexChanged(object sender, EventArgs e)
{
cbNameRepairs.Items.Clear();
db.SearchNameRepairs(cbCategoryRepairs.Text.ToString(), cbNameRepairs);
}