Welcome to an article on the ‘Cascading of Dropdown fields on SharePoint 2013 & Office 365’. This is a major approach when we build forms and when we have to use multiple look up fields on the form and they should be related to each other as a parent and child relationship.
So what happens is, when you select a parent, other child items are related to it. So if you select a particular parent, all the child items related to the parent will appear.
Let’s see it.
Create a list named “Company”.Click on Add an app,
Choose the Custom List App
Click on it and create a ‘Company’ List.
Once the list is created, add in the names of the companies.
As per the screenshot below.
Create another list named as “Employee”
Once the list is created, Create a look up column named as Company from our Company List.
As you can see below, Clock on Create Column and the choose Lookup.
Select the list as Company and choose the Title field while configuring the lookup column.