C#

Rajesh R Subramanian wrote:

chewing off a finger or two

Kunal Pandya wrote:

Is it also possible to limit the services shown i.e not all services on the machine?

Mohammad Dayyan wrote:

I receive this error :
Property or indexer 'string.this[int]' cannot be assigned to -- it is read only

What's wrong ?

A String object is called immutable (read-only) because its value cannot be modified 
once it has been created. Methods that appear to modify a String object actually return a 
new String object that contains the modification. If it is necessary to modify the actual
contents of a string-like object, use the System.Text.StringBuilder class. 

StringBuilder s = new StringBuilder();
s.Append("foo");
string a = s.ToString().SubString(0,1);

static void func(ref string bits)
    {
    StringBuilder sb = new StringBuilder();
    char Out;
    foreach (char c in bits)
        {
        if (RANDOM_NUM < MUTATION_RATE)
            {
            if (c == '1')
                Out = '0';
            else
                Out = '1';
            }
        else
            {
            Out = c;
            }
        sb.Append(Out);
        }
    bits = sb.ToString();
    }