更改angularjs中的选项时获取选项值？

Question

当用户从rate中选择时，我需要更新master_items文本框。怎么可能，

HTML，

<tr ng-repeat="item in quotation.items track by $index">
            <td>
                <select ng-model="item.item" ng-options="master_item.name as master_item.name for master_item in master_items" class="form-control" ng-change="updateItem(master_item.rate,$index)"></select>
            </td>
            <td><input type="text"  step="any" min="0" max="99999999" class="form-control" ng-model="item.quantity" placeholder="Quantity" required/></td>
            <td><input type="text"  step="any" min="0" max="99999999" class="form-control" ng-model="item.rate" placeholder="Rate" required /></td>
            <td><input type="text"  step="any" class="form-control" placeholder="Amount" value="{{item.quantity * item.rate}}" disabled/></td>
            <th><a href="javascript:void(0)" ng-if="$index > 0" ng-click="removeInputElement($index)"><i class="fa fa-remove red"></i></a></th>
        </tr>

在这里，当用户从主项目中选择一个选项时，我想更新相应的费率字段。这里选择框工作正常，每个选项都有正确的值，但我不知道如何获得选择的选项值。

我的master_items JSON是，

    {
        "total": 5,
        "per_page": 100,
        "current_page": 1,
        "last_page": 1,
        "next_page_url": null,
        "prev_page_url": null,
        "from": 1,
        "to": 5,
        "data": [
            {
                "id": 63,
                "name": "Lumia 6252",
                "description": null,
                "unit": null,
                "rate": "12.00",
                "created_by": 0,
                "updated_by": null,
                "delete_by": null,
                "created_at": "2015-03-15 17:38:40",
                "updated_at": "2015-03-15 17:38:40",
                "deleted_at": null,
                "status": 1
            }
}

。

Answer 1

试试此代码

<select ng-model="item.item" ng-options="master_item.name as master_item.name for master_item in master_items" class="form-control" ng-change="updateItem(this,$index)"></select>


$scope.updateItem=function(data,index)
{
var abjValue= data.item.item.name// You can see with quick watch for what value return from this name
}