Some problem with NumberFormatter

 -(void)textFieldDidEndEditing:(UITextField *)textField
{
    if(textField == self.nameField)
    {
        self.movie.name = self.nameField.text;
    }
    else if(textField == self.summaryField)
    {
        self.movie.summary = self.summaryField.text;
    }
    else if(textField == self.budgetField)
    {
        NSNumberFormatter *formatter = [[NSNumberFormatter alloc]init];
        [formatter setNumberStyle:NSNumberFormatterCurrencyStyle];
        self.movie.budget = [formatter numberFromString:self.budgetField.text];
        NSLog(@"%@",self.movie.budget);
        [formatter release];
    }
}

The Above code is from the Movie_LibraryEditorViewController.m file which is my second view in my project. In "self.movie.budget" it doesn't take the value, it takes as null. In the First View i have labels in which the text is displayed. Now "movie" object is of the class Movie_Library in which i 开发者_JAVA百科have overridden the following method.

-(id)initWithTitle:(NSString *)newname budget:(NSNumber *)newbudget summary:(NSString *)newsummary
    {
        self = [super init];
        if(nil!=self)
        {
            self.name = newname;
            self.budget = newbudget;
            self.summary = newsummary;
        }
        return self;
    }

Now my question is Why the Null value? Am i doing smmin wrong here?

You need to type the currency code if you use NSNumberFormatterCurrencyStyle. Default code is "$". So, the string should look like this

[formatter numberFromString:@"$34"];