CODEWITHSUNDEEP
dartdart-polymerpaper-elements
Jacob Phillips
Jacob Phillips

Reputation: 9264

How can I get the value in a paper-input in dart?

I want to read the contents of a paper-input after pressing a button in Dart. I've tried other suggestions such as reading value and inputValue attributes on both the paper-element and the internal html <input>.

Searching the page source doesn't reveal what is in the paper-input. I found the contents inside of a private member of the inner html <input>, but I'm not sure if using Mirrors in Dart can reflect private members.

The relevant value attribute resides at:

paper-element -> inner html <input> -> attributes map -> 
    private variable named _element

So the attributes map instance has some members that are not part of the map. Its _element member has a value uh field which contains the text residing in the paper-input.

Tell me I'm missing something.

EDIT: Here is what ended up being the solution: Instance of Paper elements in dart

Upvotes: 1

Views: 1005

Answers (1)

G&#252;nter Z&#246;chbauer
G&#252;nter Z&#246;chbauer

Reputation: 657308

I tried it yesterday and it worked mostly with inputValue (while editing) and value after leaving the input element using the tab key.

Ensure you are using the latest Polymer element.

dependencies: polymer: ">=0.12.0-dev <0.13.0"

(A special dependency constraint is necessary to get development releases of dependencies)

When accessing the value like

($['my-input'] as PaperInput).value // or .inputValue

returned the old value, but

<paper-input value='{{value}}' inputValue='{{inputValue}}` placeholder='enter text here></inputValue>

@observable String value;
@observable String inputValue;

worked

Upvotes: 3

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