Multiple column headers

by Mike Lu

HTML

<link rel="stylesheet" href="http://cdn.wijmo.com/5.latest/styles/wijmo.min.css">
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.input.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.filter.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.sheet.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/interop/angular/wijmo.angular.min.js"></script>
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">
<div ng-app="app" ng-controller="appCtrl" class="container">
  <wj-flex-sheet id="flex" control="ctx.flex" initialized="initialized(s)" allow-merging="AllHeaders" class="flexSheet">
    <wj-sheet items-source="ctx.data"></wj-sheet>
    <wj-sheet items-source="ctx.data2"></wj-sheet>
  </wj-flex-sheet>
</div>

CSS

.flexSheet {
	height: 400px;
	border: 2px solid #e0e0e0;
	margin: 6px;
}

JavaScript

// define app, include Wijmo 5 directives
var app = angular.module('app', ['wj']);

// controller
app.controller('appCtrl', function($scope) {
  $scope.ctx = {
    flex: null,
    data: getData(),
    data2: getData2()
  };
  
  $scope.initialized = function(flexSheet) {
    flexSheet.updatedView.addHandler(function(){
    	var colHeaders = flexSheet.hostElement.querySelector('div [wj-part="chcells"]');
    	if (colHeaders){
        for (var i = 0; i < colHeaders.childElementCount; i++){
            var row = colHeaders.childNodes[i];
            for (var j = 0; j < row.childElementCount; j++){
                var cell = row.childNodes[j];
                var cellInfo = cell['wj-cell-index'];
                if (cell && cell.childNodes.length > 1){
                  cell.childNodes[1].nodeValue = flexSheet.columns[cellInfo.col].header;
                }
            }
        }
      }
     /*setTimeout(function(){
     	if(!flexSheet.rows[0].dataItem){
      	//flexSheet.rows.splice(0,1); 
        flexSheet.rows[0].visible=false;
      }
     });*/
     if (flexSheet.rows[0] instanceof wijmo.grid.sheet.HeaderRow){
       flexSheet.rows.removeAt(0);
     }
    });
  };
  
  function getData() {
    var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','),
        data = [];
    for (var i = 0; i < 10 * countries.length; i++) {
      data.push({
        id: i,
        country: countries[i % countries.length],
        downloads: Math.round(Math.random() * 20000),
        sales: Math.random() * 10000,
        expenses: Math.random() * 5000
      });
    }
    return data;
  }
  
  function getData2(){
  	var products = ['Widget', 'Gadget', 'Doohickey'],
    		colors = ['Black', 'White', 'Red', 'Green', 'Blue'],
    		data = [];
    for (var i = 0; i < 10 * products.length; i++) {
      data.push({
        id: i,
        product: products[i % products.length],
        color: colors[i % colors.length],
        date: new Date(2016, i % 12, i % 28),
        amount:...