C# Understanding This IF Statement Logic

Luke Rayner

Hi I have just used some code off a website for one of my classes in my C# project, I dont really understand all of the logic behind it as i am new to coding with C#. I was wondering if someone was able to write this code in pseudo and also explain the logic behind it.

string fullName = LastName;

if (!string.IsNullOrWhiteSpace(FirstName))

{

if (!string.IsNullOrWhiteSpace(fullName))

{

fullName += ", ";

}

fullName += FirstName;

}

return fullName;

Thank you

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Ravi Khandelwal10y ago
Details as follows-

//First IF is checking that Text Vale of (FirstName) is Not Null or white Space
//if this is true then it goes to second IF- if (!string.IsNullOrWhiteSpace(fullName))
//In Second If FullName is check that it should not have null or white space.
//if this true then it add a comma into fullname which contains last name like fullName += ", ";
//After that it added firstName to FullName which having LastName as above
//After That both If Condition the Result comes from return fullName;
Manas Mohapatra10y ago
1. string fullName = LastName;
3. // It checks FirstName value shouldn't be blank
4. if (!string.IsNullOrWhiteSpace(FirstName))
5. {
6. // It checks fullName value shouldn't be blank
7. if (!string.IsNullOrWhiteSpace(fullName))
8. {
9. // Appending comma to fullName which contains LastName value
10. fullName += ", ";
11. }
13. // Appending FirstName to fullName
14. fullName += FirstName;
16. }
18. // returns fullName
19. return fullName;
Example: LastName = Rayner, FirstName = Luke
Then it returns Rayner, Luke