selectRange
Focuses the editable area and selects the range described by the range parameter.
Parameters
range Range
The Range object that describes the new selection.
Example - select all
<textarea id="editor"></textarea>
<div id="container"></div>
<script>
$("#editor").kendoEditor();
var editor = $("#editor").data("kendoEditor");
var range = editor.createRange();
range.selectNodeContents(editor.body);
editor.selectRange(range);
</script>