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I'm trying to use Angular.JS to dynamically add columns to an html table.

It starts with a set of data, and I want to make extra data available on a click. I'm new to Angular, and made this plunker to illustrate what I'm trying to do. I'd like to (obviously) just add a new table header and a new table data based on the number of items in the array, matched to the index number of the same row. Thank you

Controller:

function Ctrl($scope) {
$scope.data = [];
$scope.data[3] = [];
$scope.data[0] = [['New York', 1000,2000],['Los Angeles', 200,400],['Nottingham', 800,400]]
$scope.moredata = [1500, 2500, 4500];
temp = []
$scope.getData = function() {
  $scope.moduleArray[1] = $scope.moredata;
}
$scope.moduleArray = $scope.data;
}

HTML:

<div ng-controller="Ctrl">
  <button ng-click="getData()">Get more data</button>
  <table>
  <tr>
      <th>Location</th>    
      <th>Current Data</th> 
      <th ng-repeat="ba in moduleArray[1]">new data</th>    
  </tr>
  <tr data-ng-repeat="item2 in moduleArray[0]">   
      <td>2[0]{{item2[0]}}</td>  
            <td>2[1]{{item2[1]}}</td>   
      <td data-ng-repeat="bat in moduleArray[1]">{{bat[$parent.$index]}}</td>
  </tr>
</table>

Plunkr

I'm trying to use Angular.JS to dynamically add columns to an html table.

It starts with a set of data, and I want to make extra data available on a click. I'm new to Angular, and made this plunker to illustrate what I'm trying to do. I'd like to (obviously) just add a new table header and a new table data based on the number of items in the array, matched to the index number of the same row. Thank you

Controller:

function Ctrl($scope) {
$scope.data = [];
$scope.data[3] = [];
$scope.data[0] = [['New York', 1000,2000],['Los Angeles', 200,400],['Nottingham', 800,400]]
$scope.moredata = [1500, 2500, 4500];
temp = []
$scope.getData = function() {
  $scope.moduleArray[1] = $scope.moredata;
}
$scope.moduleArray = $scope.data;
}

HTML:

<div ng-controller="Ctrl">
  <button ng-click="getData()">Get more data</button>
  <table>
  <tr>
      <th>Location</th>    
      <th>Current Data</th> 
      <th ng-repeat="ba in moduleArray[1]">new data</th>    
  </tr>
  <tr data-ng-repeat="item2 in moduleArray[0]">   
      <td>2[0]{{item2[0]}}</td>  
            <td>2[1]{{item2[1]}}</td>   
      <td data-ng-repeat="bat in moduleArray[1]">{{bat[$parent.$index]}}</td>
  </tr>
</table>

Plunkr

• javascript
• angularjs
• angularjs-directive

Share Improve this question Follow asked May 29, 2016 at 0:27 phillydigitalphillydigital 19311 silver badge1111 bronze badges 1

• Will adding/removing columns always be done on the right side in order? If so would be failry simple to map new sub arrays each time columns change and use column length to determine array length and remove what's not needed from data each time – charlietfl Commented May 29, 2016 at 0:33

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 7

Here's very simple set up that toggles single columns on right side.

There are 2 sets of arrays, one for column headers and one for row data. It uses limitTo filter for ng-repeat.

From there it is a simple increment/decrement of a scope variable colCount to add/remove column

View

  <button ng-click="increment('up')">Add Column</button>
  <button ng-click="increment('down')">Remove Column</button>
  <table class="table table-bordered">
    <tr>
      <th ng-repeat="col in cols | limitTo: colCount">{{col}}</th>
    </tr>
    <tr ng-repeat="row in data">
      <td ng-repeat="item in row | limitTo: colCount">{{item}}</td>
    </tr>
  </table>

Controller

  // used as limit for ng-repeat limitTo
  $scope.colCount = 3;

  $scope.increment = function(dir) {
    (dir === 'up') ? $scope.colCount++: $scope.colCount--;
  }

  $scope.cols = // array of column names
  $scope.data = // row data arrays

Note that for large tables this may not great for performance due to multiple nested repeaters

DEMO

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