我怎样才能使pickerview的标题文本化

Question

i am writing an application in which when we click on a textfield it generates a pickerview. pickerview has two components

now what is my question is i want to get the titles of both the components which are highlighted into my textfield separated by a comma(,)

thanks in advance.

Answer 1

Lets says you have a UIPickerView object called as pickerView. When the user completes his action and taps the done button, you should get the selected value as

int offset1 = [pickerView selectedRowInComponent:0];
int offset2 = [pickerView selectedRowInComponent:1];

NSString *str = [NSString stringWithFormat:@"%@,%@",[arrOne objectAtIndex:offset1],[arrTwo objectAtIndex:offset2]];

Where arrOne and arrTwo are the array's used to populate the pickerview.

Answer 2

If you have set the pickerview delegates then write this snippet under

- (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
    for(NSUInteger k = 0; k < <number of components>s; ++k++)
    {
        NSUInteger selectedRow = [<Your pickerview name> selectedRowInComponent:k];
        NSString *title = [[<Your pickerview name> delegate] pickerView:<Your pickerview name> titleForRow:selectedRow inComponent:i];
       [<Your temporary string> appendFormat:@"Selected item \"%@\" in component %lu\n", title, i];
    }
}

Answer 3

if you add UIPickerViewDataSource,UIPickerViewDelegate Delegate then in delegate method you can directly assign this value like bellow...

- (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
    yourTextField.text = [NSString stringWithFormat:@"%@,%@",[arr1 objectAtIndex:row],[arr2 objectAtIndex:row]];

}

hope this help you...