Numeric input in textfield g4p

Mino32

Hi guys!

Is there a way to limit the input on a textfield to enter only numbers? I'm making a kind of number field with a textfield and two buttons (plus and minus) but I don't want the user enters letters in that textfield, I want only numbers.

Help me please!

Thanks :)

quark

Is there a way to limit the input on a textfield to enter only numbers?

There is no library option to do this.

You have two user options

1) If the user is not going to type-in a number then use a GLabel instead. That way your program can make sure only numbers are used.

2) If the user IS going to type-in numbers then you can text the textfield contents on the GEvent.CHANGED action.

Although option 2 can be made to work although its messy.

Mino32

Hi, thank for your help, but i found that when I convert any string different from numbers to int the value is equal to zero, so I played with that. :D Here is more or less what I did. I hope it helps.

if ((!textfield.getText().equals("0")&&int(textfield.getText())==0)
{
     textfield.setText("Invalid");
  } else
  {
    //do something
  }