Wijmo (PureJS) - No Data Available

Checks if the FlexGrid is empty, and if so, return a FlexGrid with a single cell saying "No Data Available"

by Joel Parks

HTML

<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<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.chart.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.filter.min.js"></script>
<div class="container">
  <div id="flexGrid" class="custom-icons"></div>
</div>

CSS

.wj-flexgrid {
  max-height: 250px;
  margin-bottom: 12px;
}

.header {
  display: inline-block;
  width: 150px;
  text-align: right;
  font-weight: normal;
}

// Changes the icon for filtering the grid
.custom-icons .wj-glyph-filter {
    background-image:url('http://icons.iconseeker.com/png/fullsize/aspnet/filter-1.png');
    background-repeat: no-repeat;
    background-position: bottom right;
    margin-top: 4px;
    width: 1em; height: 1em;
    border: none;
}
.custom-icons .wj-glyph-filter:after {
    display: none;
}
/* make active filter images 25% larger */
.custom-icons .wj-filter-on .wj-glyph-filter {
    transform: scale(1.25)
}

JavaScript

onload = function() {
  // Creates a vector of strings, and a data variable to hold a list of items
  // var countries = 'US,Germany,UK,Japan,Italy,Greece,China,Spain,Sweden,Norway,Denmark,Finland'.split(',');
  var countries = [];
  var data = [];
  for (var i = 0; i < countries.length; i++) {
    // Creates attributes and assigns values to each of them for each item in the 'data' variable
    data.push({
      id: i,
      country: countries[i],
      active: i % 5 != 0,
      downloads: Math.round(Math.random() * 200000),
      sales: Math.random() * 100000,
      expenses: Math.random() * 50000
    });
  }
  
  // Created an array that holds ONLY 'No Data Found' for use if there is no data
  var noData = [];
  noData.push({
  	col1: null,
    col2: null,
  	empty: "No Data Found"
  });
  
  // Checks if there is data to be placed in the FlexGrid
  // If not, place in a 'No Data Found' FlexGrid
  if(data.length > 0){
  	// Creates a view for a ListBox and FlexGrid to manipulate the same data
    var gridView = new wijmo.collections.CollectionView(data);

    // Binds the grid to a Wijmo FlexGrid array
    var gridArray = new wijmo.grid.FlexGrid('#flexGrid', {
      // Changes the header of the binded value to what is stored in the 'header' attribute
      // You can leave columns out of the table; the 'Active' column is left out
      autoGenerateColumns: false,
      columns: [{
        binding: "id",
        header: "ID"
      }, {
        binding: "country",
        header: "COUNTRY",
        // StarWidth expands/contracts a field so that the FlexGrid isn't too wide/narrow
        width: "*"
      }, {
        binding: "downloads",
        header: "DOWNLOADS"
      }, {
        binding: "sales",
        header: "SALES"
      }, {
        binding: "expenses",
        header: "EXPENSES"
      }],
      itemsSource: gridView
    });

    var filter = new wijmo.grid.filter.FlexGridFilter(gridArray);
  }else{
  	var gridView = new...