could I turn this into a switch statement ?

```
if (donation_euro.Text.Trim().Equals(""))
        {
            donation_euro.Text = "00.00";
        }
        if (donation_lui.Text.Trim().Equals(""))
        {
            donation_lui.Text = "00.00";
        }
        if (donation.Text.Trim().Equals(""))
        {
            donation.Text = "00.00";
        }

```