behavior： how to realize a required field's content must include the specified content

[zhangqian04]

hi ,

When one field changes, another field is required to be required, and the content of this required field must contain some specified content.

At present, the required fields are required to be filled in, but the required contents are required to be filled in at the same time. I don't know how to do it.

example:  if A field changes, B must require, and B must contain 'like' 

behavior A filed：

if( A  changes)

{

B. setRequired(true)

Bcontent = B.getValue() as String

if(!Bcontent.contains("like")){     // question is ：The B filled field content is not obtained，So it has always been setError

   B.setError("please input  right content!")

}

else

{

   B.clearError()

}

}

else

{

B. setRequired(false)

}

Best wishes !

[Mathis Hellensberg]

Hi @zhangqian04 

I'm not sure I completely understand, but this behaviour below makes a textfield required if any value in the selectfield is selected. I hope it can help you :)

[zhangqian04]

firstly thank you for reply,but this  doesn't solve my problem.

[Mathis Hellensberg]

How come? :)

[zhangqian04]

At present, the required field  has been realized, but I don't know how to restrict it to fill in the specified contentbut at the same time.