messages.selectAllString(default: "Select all")
The text used for the label of the "Select all" sticky header item. Only relevant when selectAll is enabled.
Example - customize selectAll message
<select id="multiselect" multiple="multiple">
<option>Item1</option>
<option>Item2</option>
<option>Item3</option>
</select>
<script>
$("#multiselect").kendoMultiSelect({
selectAll: true,
messages: {
selectAll: "Select All Items"
}
});
</script>