SharePoint | 网页部分| 如何根据状态限制下拉菜单选项

Question

I'm wondering how to achieve this via custom web part and JavaScript

I'm looking for a way on how to limit the dropdown status based on its current state. For example I have status: Start, On-Going, Completed and Pending

the initial status of Start must only have On-Going as its option.

Answer 1

jQuery - $('#idofyourdropdown option[value="On-Going"]''); OR

$('#idofyourdropdown option:contains("On-Going")');

OR using index asssuming On-Going is hte first option

$('#idofyourdropdown option:eq(1)').prop('selected', true);

OR even this

$('#idofyourdropdown').val('On-Going');