In a kendo grid, can I set column attributes dynamically with a function?

javascript, kendo-grid, kendo-template, kendo-ui

Solution

You said you don't want to use templates, but I think you were talking about column templates.

You can change the markup of the td itself by using a row template:

<script id="template" type="text/x-kendo-template">
    <tr data-uid="#= uid #">
      # this.columns.forEach(function(col) { 
          var val = data[col.field],
          css,
          style = ''
          cClasses = ''; 
          if (typeof col.attributes === 'function') {
              css = col.attributes(data); 
              cClasses = css["class"];
              style = css.style
          } 
      #         
          <td class='#= cClasses #' style='#= style #'>
            #= data[col.field] #
          </td>
      # }) #
    </tr>
</script>

For the loop to work, you need to bind your template to the grid though:

var grid = $("#grid").kendoGrid({
    columns: [{
        field: "name",
        title: "Name",
        attributes: function (e) {
            return {
                "class": "table-cell",
                style: e.name == "Jane Doe" ? 
                       "background-color: red" : "background-color: green"
            };
        }
    }, {
        field: "title",
        title: "Title"
    }],
    dataSource: [{name: "Jane Doe", title: "Dr. Dr."}, 
                 {name: "John Doe", title: "Senior Citizen"}]
}).data("kendoGrid");

var template = kendo.template($("#template").html()).bind(grid);
grid.setOptions({
    rowTemplate: template
});  

(demo)

As an alternative, you could also create attributes like this:

{
    field: "name",
    title: "Name",
    attributes: { 
        "class": "# if(data.name === 'Jane Doe') { # red # } else { # green # } #" 
    }
},

This would have the advantage of not using the row template, but you'd have to use the template syntax for the logic.

(demo)

Problem

Original source