CODEWITHSUNDEEP
iosobjective-ccocoa-touch
JSA986
JSA986

Reputation: 5936

If Statement Advice Needed

I’m trying to show an alert when a value greater than 200 is entered in my UITextField, rcdAtIan.text. I’ve tried this:

 Self.rcdAtIan.text = self.circuit.rcdAtIan;
    if (_rcdAtIan.text > @"200");{
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Value Exceeded" message:@"Message here............." delegate:nil cancelButtonTitle: @"Ok" otherButtonTitles: nil];
           [alert show];

and then this:

Self.rcdAtIan.text = self.circuit.rcdAtIan;
 if (self.circuit.rcdAtIan > @"200");{
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Value Exceeded" message:@"Message here.........." delegate:nil cancelButtonTitle: @"Ok" otherButtonTitles: nil];
           [alert show];
    }

but the alert is being shown when the view is loaded, rather than by my if statement. I know what I’m trying to say — if (_rcdAtIan.text => 200 "show my alert"); — but I’m unsure of the correct syntax.

Upvotes: 0

Views: 69

Answers (2)

Stavash
Stavash

Reputation: 14304

You're trying to perform an arithmetic comparison on 2 string values. What you need to do is ask:

if ([_rcdAtIan.text intValue] > 200) {...

Upvotes: 7

user529758
user529758

Reputation:

You can't compare strings like this (well, you can, but it doesn't make sense, since it performs a numerical comparison of the pointers which represent the strings, and it does not compare the contents of the strings). So, you may want to convert the strings to numerical values:

if ([self.circuit.rcdAtIan intValue] >= 200) {
    // "200" or more has been entered
}

Upvotes: 4

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