delay Number(default: 200)

The delay in milliseconds between a keystroke and when the widget displays the popup.

Example - set the delay

<input id="multicolumncombobox" />
<script>
$("#multicolumncombobox").kendoMultiColumnComboBox({
  delay: 500,
  dataSource: [
    { Name: "Parent1", Id: 1 },
    { Name: "Parent2", Id: 2 }
  ],
  dataTextField: "Name",
  dataValueField: "Id",
  columns: [
    { field: "Name" },
    { field: "Id" }
  ]
});
</script>