UITextField "onChange" functionality...

[nghtstr]

Hey all,

This may be another simple solution, I am just unsure what to start looking for.

I have a form, with some UITextFields in it. I would like to perform some action, based off from the name of the field, and perform some action upon leaving the field.

Here is the catcher (I think), that while each would be named differently, the basic premise of what it would do is identical in each instance. I could use with some help on this one.

Oh, and to just throw ONE more wrinkle in it, while right now I am dealing with UITextFields, I would also like to do the same functionality with Checkboxes and Drop Downs.

Thanks for the advice and help!!

[jhzafrani]

Tag all of your controls with identifying information that could give you both the type and the name (like "opt_option1" for an option button or "txt_firstname" for a textfield). You could connect all the controls to the same IBAction as long as you define its parameter as id type. Once in the function, you could check the tag of the object and execute the appropriate code.

That should work without a problem.

[nghtstr]

Originally Posted by jhzafrani

Tag all of your controls with identifying information that could give you both the type and the name (like "opt_option1" for an option button or "txt_firstname" for a textfield). You could connect all the controls to the same IBAction as long as you define its parameter as id type. Once in the function, you could check the tag of the object and execute the appropriate code.

That should work without a problem.

The only part of that is that upon leaving the element, or changing the element is when I want that code to be executed. How would I go about that?

Other than that, that is a really great idea, thanks!!

[jhzafrani]

Originally Posted by nghtstr

The only part of that is that upon leaving the element, or changing the element is when I want that code to be executed. How would I go about that?

Other than that, that is a really great idea, thanks!!

Well, connect the IBAction to each of the component's "changed" event. Since you are declaring it as an id, it won't make a difference as to the control. Then, all you have to do in the function code is determine the type of control based on the tag, create a new control class and cast the sender property (id type) to the correct control class to get the properties that you want.

Jim