case sensitive

[Siten0308]

Hello,

Really easy question for everyone,

what the the code to have the user input none case sensative example: user can input, yes YES yEs and still equal to whatever in a if and else statement?

Thank you

[amrosama]

at last! someone to help

you can use this function "ToLower()"
this code will return true :

bool compare()
{
if("YEs".ToLower()=="yes".ToLower())return true;
else return false;
}

}

[WingedPanther]

use the .ToUpper() method and compare with YES

dang! Amr beat me to it!

[amrosama]

lol, youve helped lots of people including me...let me share the burden

[WingedPanther]

Hey, I'm glad people are helping each other. It's a GOOD thing.

[Jordan]

Not saying that doesn't work but I've never seen it done like that:

if("YEs".ToLower()=="yes".ToLower())return true;

I'm guessing "yes".ToLower() returns a string but I though the proper method was to use the String.Compare function? I could be wrong:

string s1 = "YEs";
string s2 = "YES";
if(string.compare(s1.ToLower(),s2.ToLower())==0) {
  // They Match
}

It is odd that 0 = true but anything above 0 or below is false.

Rather than using .ToLower() you can pass a third argument to string.compare to ignore case:

string s1 = "YEs";
string s2 = "YES";
if(string.compare(s1, s2, true)==0) {
  // They Match
}

You have other options as well:

String.CompareOrdinal() will return the numeric Unicode values for each character compared

String.Equals() returns a boolan value similar to using "=="

[Xav]

Your method is irrelevant, because ToLower() and ToUpper() work perfectly. -rep

[Jordan]

Now he has the option to choose. My method with passing the third param looks neater as well. Your post is irrelevant to his problem. -rep

[Xav]

OK, here's my code then:

string s1 = "YEs";
string s2 = "YES";
bool match = (s1.ToLower() == s2.ToLower()) ? true : false;

Your code:

string s1 = "YEs";
string s2 = "YES";
if(string.compare(s1, s2, true)==0) {
  // They Match
}

My one is neater. ---rep

[Jordan]

You'll still need an if statement in yours to diagnose "match" later, making your code one line longer than mine. Your code is inferior to mine not to mention slower.

Fail.