I am getting an error 'Attempt to mutate immutable object with appendString:'
and my code is
NSMutableString *resultString= [[NSMutableString alloc]init];
for (NSMutableString *s in self.ArrayValue)
{
[resultString appendString:s];
NSLog(resultString);
}
ArrayValue is NSMutableArray.
I am not able to understand where is the problem
thank you in advance
As posted, the code you have will not give you the error you describe. Probably, somewhere between allocating resultString and the for loop, you are overwriting it with a normal NSSring.
Just do have like this:
It works for me...
NSMutableString *resultString= [[NSMutableString alloc]init];
NSMutableArray *ArrayValue=[[NSMutableArray alloc]init];
[ArrayValue addObject:@"One"];
[ArrayValue addObject:@"Two"];
[ArrayValue addObject:@"Three"];
for (NSMutableString *s in ArrayValue)
{
[resultString appendString:s];
NSLog(@"%@",resultString);------->You should use %@ to print the string otherwise will show your warning.
}
O/P on Console:
2011-03-08 19:13:02.243 iPadMables[4557:207] One
2011-03-08 19:13:06.224 iPadMables[4557:207] OneTwo
2011-03-08 19:13:09.388 iPadMables[4557:207] OneTwoThree
ArrayValue = [NSMutableArray arrayWithObjects:@"b",@"o",@"n",nil];
NSMutableString *resultString= [[NSMutableString alloc]init];
for (NSMutableString *s in self.ArrayValue)
{
[resultString appendString:s];
NSLog(resultString);
}
works for me..
