AngularJS ng-repeat 设置默认选择值 [英] AngularJS ng-repeat setting default select value

问题描述

$scope.activities =
    [
        { id: 1, type: "DROPDOWN_MENU", name: "Dropdown Menu" },
        { id: 2, type: "HORIZONTAL_BAR", name: "Horizontal Bar" }
    ];

<select data-ng-model="engineer.currentActivity" data-ng-options="a.name for a in activities">                
</select>

使用上述内容，我可以创建一个包含 3 个值的选择框，一个空白的，然后是下拉菜单和水平栏.

Using the above I am able to create a select box with 3 values, a blank one and then dropdown menu and horizontal bar.

我想将水平栏设置为我的默认值，但不知道如何执行此操作.

I would like to set Horizontal Bar as my default and cannot see how to do this.

帮助会很棒

推荐答案

在控制器中，只需添加一行设置初始选择:

In the controller, just add a line to setup the initial selection:

$scope.activities =
    [
        { id: 1, type: "DROPDOWN_MENU", name: "Dropdown Menu" },
        { id: 2, type: "HORIZONTAL_BAR", name: "Horizontal Bar" }
    ];

$scope.engineer = {}; // if needed
$scope.engineer.currentActivity = $scope.activities[1];

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