enableItem
Changes the enabled state of the radio button at a given index.
Parameters
enable Boolean
Enables or disables the radio button.
index Number
The index of the radio button to be enabled/disabled.
Example
<ul id="radiogroup"></ul>
<script>
$("#radiogroup").kendoRadioGroup({
items: [ "one", "two", "three" ]
});
var radioGroup = $("#radiogroup").getKendoRadioGroup();
radioGroup.enableItem(false, 1);
</script>