How to check for double if null?

Question

Hi,

I have the following in my app:

double? latitude;
..................
..................
..................
var content = new FormUrlEncodedContent(new[]
{
     new KeyValuePair<string, string>("latitude", latitude),
}

How can I check for the vale of latitude so if it's null then pass "" otherwise pass Convert.ToString(latitude)?

Thanks,
Jassim

Answer 1

Try...

new KeyValuePair<string, string>("latitude", latitude.HasValue ? latitude.Value.ToString() : "")  

Reference documentation.
?: operator (C# reference)
Nullable value types (C# reference)

Answer 2

You could do something like this:

double? latitude = null;
// ...
Console.WriteLine(latitude?.ToString() ?? "");