passing parameter/input data to custom elements in DART

Question

I created a custom element, and want to send data / parameters to it:

my element code is:

   class SaveBtn         


        

Answer 1

You can simply add a new constructor for this that sets the data-name attribute too:

class SaveBtn {
  // ...
  factory SaveBtn(String label) {
    var btn = new Element.tag(tag);
    btn.setAttribute('data-name', label); // Set properties/call methods here
    return btn;
  }
  // ...
}