AngularJS：UI的选择一旦选定不能从改变选项除了删除选定的选项 [英] AngularJS: ui-select once selected not able to remove selected option apart from change option

问题描述

我使用的用户界面，请从服务器和安培获取数据;填充它在下拉（搜索和;选择）。我创建了一个 plunker 你。

I am using ui-select for fetching data from server & populate it in drop down (search & select). I created a plunker for you.

<ui-select ng-model="country.selected" theme="selectize" ng-disabled="disabled" style="width: 300px;">
    <ui-select-match placeholder="Select or search a country in the list...">{{$select.selected.name}}</ui-select-match>
    <ui-select-choices repeat="country in countries | filter: $select.search">
        <span ng-bind-html="country.name | highlight: $select.search"></span>
        <small ng-bind-html="country.code | highlight: $select.search"></small>
    </ui-select-choices>
</ui-select>

有一次，我从选择的任何选择的价值，我可以进一步转变。但无法移除。我怎样才能做到这一点？

Once I selected any value from selector, I can change further. But not able to remove. How can I do this?

推荐答案

您应该使用其他主题如选择2 来完成这项工作。我升级了您的 PLUNKER 显示这是如何工作的。添加允许清晰=真正的到 UI的选择匹配，并设置主题为主题=选择2允许取消选择一个项目。

You should use an other theme like select2 to make this work. I upgraded your PLUNKER to show how this could work. Add allow-clear="true" into ui-select-match and set theme to theme="select2" to allow unselect an item.

<ui-select ng-model="country.selected" theme="select2" ng-disabled="disabled" style="width: 300px;">
      <ui-select-match allow-clear="true" placeholder="Select or search a country in the list...">{{$select.selected.name}}</ui-select-match>
      <ui-select-choices repeat="country in countries | filter: $select.search">
            <span ng-bind-html="country.name | highlight: $select.search"></span>
            <small ng-bind-html="country.code | highlight: $select.search"></small>
      </ui-select-choices>
</ui-select>

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