I want a blank option with md-select and I want it not to validate when required

Question

I\'m using Angular Material and md-select and I would like to make a blank option such that when you select it, you have no value in the select. In the case that I

Answer 1

Try adding the following code segment:

<md-option ng-value disabled>Choose One</md-option>

Answer 2

QUESTION CHANGED AFTER ASKING. Not originally about md-select so there may be a better way to do this. All you need to do is add this option to your md-select:

<md-option value=""></md-option>

And remove the blank entry from your object.

HTML

<select ng-model="selectedValue2" required >
    <option value=""></option>
    <option ng-repeat="option in options['id'] | orderBy: 'id'" ng-value="option.value">{{option.name}}</option>
</select>

JavaScript

$scope.options = {id : [
    {name : 'World', value : 'World', id:3},
    {name : 'qweqwe', value : 'qweqwe', id:1},
    {name : 'rwerasdf', value : 'rwerasdf', id:2}
]}

This would be enough if you were using a regular select, but md-select considers the null value to satisfy the required attribute so you need extra work.

In your select, add a function checkNull to run onchange:

 ng-change="checkNull()"

Then add it to your scope:

$scope.checkNull = function(){
    if(typeof $scope.selectedValue2 === "undefined"){
        $scope.myform.myselect.$setValidity("required", false);
    }
};

Working Fiddle