How do I change the date format of a DataBinder.Eval in asp.net?

I put this in the code behind:

public string makeShortDate(object oDate)
{
    if (oDate is DBNull) {
        return "";
    } else {
        DateTime dDate = Convert.ToDateTime(oDate);
        string sDate = dDate.ToShortDateString();
        return sDate;
    }           
}

And use this in the XHTML:

Text='<%# makeShortDate ( DataBinder.Eval(Container.DataItem, "MyDate")) %>'

You can modify this for any type.

<%# string.Format("{0:ddd MMM yyyy}", Eval("ActionListDate"))%>

give the format e.g:

<%# DataBinder.Eval(Container.DataItem, "ActionListDate", "{0:d/M/yyyy hh:mm:ss tt}") %>