Question How to change character type in textfield UI Toolkit?

Hello. I want to make Textfield which will only allow type positive and negative digits to change values in script runtime. I could not find this parameter inside UI Toolkit and making my own solution but I wonder is it even possible at the moment?

2021.2.3f1 unity
1.0.0-preview.18 exp

 

Hello,
you can react on the input from the TextField. So you could register a callback like textField.RegisterCallback<FocusOutEvent>() and then parse the information inside the TextField to your liking or use any other callback you see fit.

Hope that gets you going.

 

Yes, im already made a parser which allow only positive int numbers with <InputEvent>. But when it will be implemented inside of InputField? Or Im missing something?

 

For inspector gui's it is already there but not for the runtime UI.
I'am aswell hope that the team is working on implementing that for the runtime UI.

 

I'am very glad that you and your team are here and improving the system! Thanks!

 

Thanks for the answer.

 

Thanks for the update all. I agree @hugobd it's a little inconvenient now. In case others need an immediate solution, something like this worked for me...

Code (CSharp):

1.  
2. // Get a callback every time the value changes (here textField is a TextField)
3. textField.RegisterValueChangedCallback(IntegerValidation);
4.  
5. // Reject changes unless they only contain integer characters
6. void IntegerValidation(ChangeEvent<string> changeEvent)
7. {
8.     var textField = changeEvent.target as TextField;
9.     if (!ValidateCharacters(changeEvent.newValue, "0123456789"))
10.     {
11.         textField.value = changeEvent.previousValue;
12.     }
13. }
14.  
15. bool ValidateCharacters(string value, string validCharacters)
16. {
17.     foreach (var c in value)
18.     {
19.         if (!validCharacters.Contains(c))
20.         {
21.             return false;
22.         }
23.     }
24.     return true;
25. }