当我在DateTime字段中具有空值时，此DisplayTemplate最终为我工作:

This DisplayTemplate ended up working for me, when I had null values in the DateTime field:

@model DateTime?

@((@Model != null) ?  Model.Value.ToString("MM/dd/yyyy") : "{n/a}" )

当该值为null时，将其替换为字符串:{n/a}

When the value is null, it is replaced with the string: {n/a}