select: remove support for md-multiple

[bmbarker90]

Actual Behavior:

• What is the issue? * When the expression in ng-multiple evaluates to true, md-select-value updates appropriately but md-select-menu does not change to a multi-select.
• What is the expected behavior? When ng-multiple evaluates to true, it should change md-select-menu to a multi-select.

CodePen (or steps to reproduce the issue): *

• CodePen Demo which shows your issue: http://codepen.io/anon/pen/Zpyzyq?editors=1010
• Details: ng-multiple set on the Result select evaluates to true when Multi Select is selected in the type select. The Result select should be a multi-select, but it is not.

Angular Versions: *

• Angular Version: v1.5.5
• Angular Material Version: v1.1.1

Additional Information:

• Browser Type: * Chrome
• Browser Version: * Version 53.0.2785.116 (64-bit)
• OS: * OS X El Capitan Version 10.11.6
• Stack Traces:

---

Shortcut to create a new CodePen Demo.
Note: * indicates required information. Without this information, your issue may be auto-closed.

Do not modify the titles or questions. Simply add your responses to the ends of the questions.
Add more lines if needed.

[benreibriongos]

Your code is working with multiple select with no checkbox but you can select items same with the checkbox. I'm using chrome Version 53.0.2785.143 m in windows 10.

[bmbarker90]

Right, but checkboxes should be showing. If I just hard-code multiple="true" in the html, then checkboxes do show for each option

[devversion]

Can confirm this. @topherfangio Do you want to take a look at this?

Seems to be a major bug.

[zbjornson]

ngMultiple was dropped from angular core in 1.2.0, though, because it didn't work:

angular/angular.js#2113
https://github.com/angular/angular.js/blob/master/CHANGELOG.md#120rc1-spooky-giraffe-2013-08-13
angular/angular.js@d87fa00
angular/angular.js#1484

(We hit this problem also, but can work-around it.)

[wingoku]

Checkbox isn't visible in my md-select either. I have hardcoded the multiple=true