How to replace string.empty to “0”

Question

Just like the title says.

I\'ve tried doing str.Replace(\"\",\"0\"); but it gave me error because oldValue has zero length.

Is it possi

Answer 1

String.Replace takes two string arguments oldValue and newValue. You specified the newValue 0 however an empty string is not legal for the oldValue.

try below code :-

str.Replace(" ","0"); 

or you can just assign "0" to emptry string as below :-

if(str == string.Empty)
{
   str = "0";
}

or making it simple :-

String.IsNullOrWhiteSpace(str) ? "0" : str;