How to Make Attachment Column in SharePoint List Mandatory?

Hi, today I'm ready with the next customization in SharePoint list....Yes, today we gonna see how to make the attachment field in SharePoint list MANDATORY. We gonna achieve this by doing simple steps !!!!!!! Just follow the steps which I given down :) Steps ( For New Form ): Open your SharePoint list where you want to make the Attachment Column Mandatory or Required. Enabling the Attachment Column in Views (All Items) [Note: we don't need to create a separate column for Attachment because we have it already under the ( ListSettings --> In bottom of the page we have 'Views' under the views we have 'All Items' click the All Items ) ] . Now I have two items in my list, One item with attachment file and another item without attachment file. You can see it in below Screen Shot. Now we need to validate ( if the attachment column is empty give an alert at the same time the file should ...