CODEWITHSUNDEEP
dartdart-polymer
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Reputation: 1018

Data binding for dynamically created element

In a polymer element I can bind a property like this: <input type="text" value="{{value}}"> But if I create the html element dynamically in the script: TextInputElement newElement = new TextInputElement(); How can I achieve the binding?

Upvotes: 3

Views: 676

Answers (2)

TSV
TSV

Reputation: 7641

I use this workaround (polymer 0.15.5+4):

var template = new TemplateElement()
..setInnerHtml("<p>Reversed: {{ reversed }}</p>");
var fragment = this.instanceTemplate(template);
this.shadowRoot.append(fragment);

But it seems rather complex for me and i've not found more elegant solution for a while.

I feel confused by Günter's phrase "The used expressions must already be used somewhere so Smoke knows to generate code for them." from Dart: Dynamic usage of polymer-ui-tabs and polymer-ui-pages does not work thread. Can somebody from this thread light this moment?

Upvotes: 0

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

Reputation: 658067

You can have a look at

there was a similar question for Polymer.js recently with a simpler solution (Data binding for dynamically generated HTML in Polymer?) but I haven't seen anything similar for Polymer.dart yet.
I'll try to find something tomorrow, it's rather late here already ...

I created this issue http://dartbug.com/21029 This is fixed now with injectBoundHtml. See also https://groups.google.com/a/dartlang.org/d/msg/web/uqri0fpGH10/dPm169WUiUwJ for more details.

Upvotes: 2

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