Assign "empty" to a Stringbuilder object

Question

Can anyone say me why when using this block of code :

   StringBuilder temp = new StringBuilder(strSource);

                for (int i = Start; i <= End-1; i++)
                {
                    temp[i] = '';
                }

I get an error in the "for" loop: literal empty character.

On the other hand, this works:

temp[i] = ' ';

What is not clear about it? '' denotes a literal of type char, "" of type string. What would be the char you describe in =''? — Jeroen Vannevel
– Jeroen Vannevel, Commented Oct 5, 2014 at 14:29
@ArnaudAd You can't delete characters this way, that's not how things work. — BartoszKP
– BartoszKP, Commented Oct 5, 2014 at 14:34

Lucas Trzesniewski · Accepted Answer · 2014-10-05 14:34:28Z

3

You're trying to reinvent the Remove method:

if (End > Start)
    temp.Remove(Start, End - Start);

'' is not valid because single quotes introduce a char literal, which must always be one char.

answered Oct 5, 2014 at 14:34

Lucas Trzesniewski

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SLaks · Accepted Answer · 2014-10-05 14:33:09Z

0

Characters must have a value.

Instead, you should write

temp.Length = 0;

answered Oct 5, 2014 at 14:33

SLaks

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