I have created a custom widget with configuration in web appbuilder. What I need to do is disable "Ok" button or do nothing if all fields in the config screen are not filled. In other words, I need to do save only when all inputs are filled. Any idea how to achieve it?

Regards, Jamil

  • No reply??? No body did such implementation in Web AppBuilder????
    – Jamil
    Commented Nov 13, 2015 at 5:50

1 Answer 1


I'll provide my solution, even though this is an old post, since it's a top Google result.

As far as I know, you cannot disable the OK button, but there is a way to prevent users from moving forward if they don't meet your validation test.

When you click OK on the widget settings page, the getConfig() method is fired. If we return false on this method, the user will not be able to close the settings page. Therefore, we can add a validation method and return false if some criteria is not met - with a popup indicating what the user omitted.

getConfig: function() {
  if ( !this.yourValidationMethod ) { 
    return false

yourValidationMethod: function() {
  if (lang.trim(this.someInput.get('value')) === '') {
    return false;
  } else { 
    return true 

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