Question

I am getting this error: [NSURL stringByAppendingFormat:]: unrecognized selector sent to instance 0x5869210 when it gets to the append. strcust is a plain number and strURI is correct until the append.

 NSString *strUIR = [NSURL URLWithString:@"https://cid.hooru.mobi:36610/?";
 strURI = [strURI stringByAppendingFormat:@&Cust=IPRR%@", strCust];

Any thoughts would be appreciated. I am just trying to append Name/value pairs from variables. Can’t get the append to work.

Answer 1

There are several problems with this piece of code:

1. You’re declaring an NSString but you are assigning an NSURL
2. You’re missing a right square bracket ‘]’
3. You’re missing a double quote on your second line
4. You’re trying to call an NSString method on an NSURL object
5. You’re misspelling strURI on your first line (it is strUIR)

Try this:

NSString *strURI = @"https://cid.hooru.mobi:36610/?";
strURI = [strURI stringByAppendingFormat:@"&Cust=IPRR%d", strCust]; 
//Note the %d (if strCust is an int. If it's an NSString use %@)

NSURL *myUrl = [NSURL UrlWithString:strURI];