cancelChanges

Cancels any pending changes in the data source. Deleted data items are restored, new data items are removed and updated data items are restored to their initial state.

<div id="grid"></div>
<script>
  $("#grid").kendoGrid({
    columns: [
      { field: "name" },
      { field: "age" }
    ],
    dataSource: {
      data: [
        { id: 1, name: "Jane Doe", age: 30 },
        { id: 2, name: "John Doe", age: 33 }
      ],
      schema: {
        model: { id: "id" }
      }
    },
    editable: true
  });
  var grid = $("#grid").data("kendoGrid");
  grid.addRow();

  setTimeout(function(){
    grid.cancelChanges();
  }, 1000);
</script>