Javascript 如何以编程方式设置剑道日期选择器最小值？

我有剑道日期选择器在我看来，我也有一个下拉列表，我需要帮助设置日期选择器最小值编程。当type下拉列表值更改时，我希望将数据选择器限制为type.text=x，set minValue=currentYear-1，type.text=y，set minValue=currentYear-2

我有一个字体下拉列表

<input id="type" />
<script>

$("#type").kendoDropDownList({
  dataSource: [
    { id: 1, name: "x" },
    { id: 2, name: "y" }
  ],
  dataTextField: "name",
  dataValueField: "id"
});
</script>

我喜欢应用以下条件

    if Type = x then minValue = currentYear-1
    if Type = y then minValue = currentYear-2
    else display as is 

    if Type = x then minValue = currentYear-1
    if Type = y then minValue = currentYear-2
    else display as is