AngularJS没有填充表格

我有以下ASMX WebService

[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string GetReport()
{
    List<object> result = new List<object>();
    DataTable results = conn.GetdatasetByQuery("SELECT * FROM TABLE")

    foreach (DataRow i in results.Rows)
    {
        result.Add(new { A = i["ColumnA"],B = i["ColumnB"] });
    }

    var res = JsonConvert.SerializeObject(result);

    return res;
}

当我通过ajax调用执行此代码或我的Angular函数（如下）返回以下内容：

<?xml version="1.0" encoding="utf-8"?>
<string xmlns="http://tempuri.org/">[{"A":"12","B":"xd"},{"A":"43",{"A":"Abc",{"A":"SW1",{"A":"Abc1","B":"xd"}]</string>

我的HTML /角度如下：

<div class="container" ng-app="myApp" ng-controller="myController">
    <div class="panel panel-default">
        <div class="panel-heading">
            <h4>OEE - Dashboard</h4>
        </div>
        <div class="panel-body">
            <div class="row">
                <div class="col-md-12 col-xs-12 form-group">
                    <table id="Table" class="table table-bordered table-condensed">
                        <thead>
                            <tr>
                                <th>Column A</th>
                            </tr>
                        </thead>
                        <tbody id="TableBody">
                            <tr ng-repeat="oee in list track by $index">
                                <td>{{oee.A}}</td>
                            </tr>
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    </div>
</div>

var app = angular.module('myApp',[]);
app.controller('myController',function ($scope,$http) {
    var request = {
        method: 'POST',url: 'MyAPI.asmx/GetReport',contentType: 'application/json',dataType: 'json' 
    };

    $scope.arrOEE = new Array;

    $http(request)
        .success(function (jsonData) {
            $scope.arrOEE = jsonData;
            $scope.list = $scope.arrOEE;

            console.log($scope.list);
        })
        .error(function () {
        });
    });

如果我将 ooe.Line更改为oee ，则此代码只会向我添加空白行。

顺便说一句，我需要在ng-repeat上放置 $ index跟踪，因为如果没有此操作，我会收到以下错误消息：

错误：[ngRepeat：dupes]

问题出在哪里，我该如何解决？我使用的是1.5.0。