columns.footerTemplateString|Function
The template which renders the footer table cell for the column.
The following fields can be used in the template:
- average- The value of the- averageaggregate (if specified).
- count- The value of the- countaggregate (if specified).
- max- The value of the- maxaggregate (if specified).
- min- The value of the- minaggregate (if specified).
- sum- The value of the- sumaggregate (if specified).
Example - specifyinging a column footer template
<div id="treeList"></div>
<script>
    $("#treeList").kendoTreeList({
      columns: [
        { field: "name" },
        { field: "age",
          footerTemplate: "Min: #: min # Max: #: max #"
        }
      ],
      dataSource: {
        data: [
          { id: 1, parentId: null, name: "Jane Doe", age: 30 },
          { id: 2, parentId: 1, name: "John Doe", age: 33 },
          { id: 3, parentId: 1, name: "Joseph Doe", age: 42 }
        ],
        aggregate: [
            { field: "age", aggregate: "min" },
            { field: "age", aggregate: "max" }
        ]
      }
    });
</script>In this article