How do I use DateTime.TryParse with a Nullable?

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逝去的感伤
逝去的感伤 2020-12-02 15:06

I want to use the DateTime.TryParse method to get the datetime value of a string into a Nullable. But when I try this:

DateTime? d;
bool success = DateTime.         


        
9条回答
  •  抹茶落季
    2020-12-02 15:48

    What about creating an extension method?

    public static class NullableExtensions
    {
        public static bool TryParse(this DateTime? dateTime, string dateString, out DateTime? result)
        {
            DateTime tempDate;
            if(! DateTime.TryParse(dateString,out tempDate))
            {
                result = null;
                return false;
            }
    
            result = tempDate;
            return true;
    
        }
    }
    

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