使用angularjs DropDownList的设置默认值？ [英] Set default value for dropdownlist using angularjs?

问题描述

我有code，它然后填充的DropDownList和获取列表中的最后一个项目的JavaScript变量。现在我想要做的就是选择最后一项为我缺少的。什么默认的？

 ＆LT; D​​IV CLASS =行＆GT;
＆LT; D​​IV＆GT;
    ＆LT;选择NG-的init =lastItemNG模型=congressFilterNG选项=cc.congressLongName在ccList CC＆GT;＆LT; /选择＆GT;
＆LT; / DIV＆GT;
＆LT; D​​IV CLASS =网格式数据-NG-格=userGrid＆GT;
＆LT; / DIV＆GT;
 

  ccResource.query（功能（数据）{
    $ scope.ccList.length = 0;
    angular.forEach（数据，功能（ccData）{
        $ scope.ccList.push（ccData）;
    }）    //为DropDownList的设置默认值？
    $ scope.lastItem = $ scope.ccList [$ scope.ccList.length  -  1];
}）;
 

解决方案

您只需要在你的控制器ASIGN一个值congressFilter。

  $ scope.congressFilter ='someVal';
 

这要看怎么然而数据看起来有点。

I have code that populates then dropdownlist and the javascript variable that gets the last item in the list. Now all I want to do is select that last item as the default .What am I missing ?

<div class="row">
<div>
    <select ng-init="lastItem" ng-model="congressFilter" ng-options="cc.congressLongName for cc in ccList"></select>
</div>
<div class="grid-style" data-ng-grid="userGrid">
</div>

   ccResource.query(function (data) {
    $scope.ccList.length = 0;
    angular.forEach(data, function (ccData) {
        $scope.ccList.push(ccData);
    })

    //Set default value for dropdownlist?
    $scope.lastItem = $scope.ccList[$scope.ccList.length - 1];
});

解决方案

You simply need to asign a value to congressFilter in your controller.

 $scope.congressFilter = 'someVal';

It depends a little on how your data looks however.

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