Question

我的HTML代码：

<!DOCTYPE html>
<html ng-app="myApp">
  <head>
    <title>Test App</title>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"></script>
    <script src="index.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.3.0/Chart.bundle.js"></script>
  </head>

  <header>
    <h1>Test App</h1>
  </header>

  <body ng-controller="myController">
      Search Names: <input type="text" ng-model="search">
    <ol>
      <li ng-repeat="datas in collection | filter:search track by $index">{{datas}}</li>
    </ol>
            <form ng-submit="addName()">
                  <input type="text" ng-model="names" placeholder="Enter name" required>
                  <input type="text" ng-model="number" placeholder="Enter number for chart" required>
                  <input type="submit" value="Submit">
            </form>
        <div style="width:20%;">
        <canvas id="myChart" width="400" height="400"></canvas>
        </div>
  </body>
</html>

我的javascript文件：

var myApp =angular.module("myApp", []);
    myApp.controller("myController", function($scope) {
          $scope.collection = [];
          $scope.addName = function () {
            $scope.collection.push($scope.names);
            $scope.names = '';
            $scope.number = this.number;
          };

          var ctx = document.getElementById("myChart");
    var myChart = new Chart(ctx, {
        type: 'line',
        data: {
            labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
            datasets: [{
                label: '# of Votes',
                data: [12, 19, 3, 5, 2, $scope.number],
                backgroundColor: [
                    'rgba(255, 99, 132, 0.2)',
                    'rgba(54, 162, 235, 0.2)',
                    'rgba(255, 206, 86, 0.2)',
                    'rgba(75, 192, 192, 0.2)',
                    'rgba(153, 102, 255, 0.2)',
                    'rgba(255, 159, 64, 0.2)'
                ],
                borderColor: [
                    'rgba(255,99,132,1)',
                    'rgba(54, 162, 235, 1)',
                    'rgba(255, 206, 86, 1)',
                    'rgba(75, 192, 192, 1)',
                    'rgba(153, 102, 255, 1)',
                    'rgba(255, 159, 64, 1)'
                ],
                borderWidth: 1
            }]
        },
        options: {
            scales: {
                yAxes: [{
                    ticks: {
                        beginAtZero:true
                    }
                }]
            }
        }
    });
});

我是角度和javascript的新手。我试图从表单获取用户值amd想要在数据集中的数据中使用，以便我的图形值将根据用户输入。

请在我错的地方帮忙。感谢

Answer 1

你不能这样使用，因为数据是图表中的一个数组，

你可以这样做，

struct

并在图表中指定值

<强> DEMO

无论如何，我推荐的是有很多图表库可用于支持angularjs，如HighCharts-ng和nvd3。尝试使用其中一个。

Angularjs - 无法从表单到图表调用值

1 个答案: