Question

I have the following:

    protected SelectList GetReferenceOptions(string pk)
    {
        var options = new SelectList(_reference.Get(pk)
            .AsEnumerable()
            .OrderBy(o => o.Order), "RowKey", "Value");
        return options;
    }

    protected SelectList GetReferenceOptions(string pk, string value)
    {
        var options = new SelectList(_reference.Get(pk)
            .AsEnumerable()
            .OrderBy(o => o.Order), "RowKey", "Value", value);
        return options;
    }

This looks like something I could combine into one but I am not sure how to handle the parameters. Can someone help me by explaining how I could do this?

Answer 1

If value is set to null in the first constructor you show then this would work:

protected SelectList GetReferenceOptions(string pk, string value = null)
{
    var options = new SelectList(_reference.Get(pk)
        .AsEnumerable()
        .OrderBy(o => o.Order), "RowKey", "Value", value);
    return options;
}