Within SharePoint there is a small button in the top right which focuses on the content. Basically it hides the top navigation and quick launch.
For my own purposes I required this to be the default as I was creating a display page. The following code below helped achieve this, it’s also worth noting that the Focus button can still be pressed if the user would like to view the navigation/quick launch.
The code below is not my own, this was through Technet forum replies.
If you’ve Googled Cascading Dropdowns you will realise there are various ways of doing this. Due to my background not being a developer of any sort the easiest solution to me was some short code. I’ve explained below the steps for creating this.
Create 3 lists (or more depending on how many cascading levels you require), you don’t need to rename the title column, we can use as is.
Create your master list that has all these drop downs in.
Using the three lists, populate your data, I’ve used mobile networks and their offerings.
Within each list, use a lookup to the previous list and insert the data as required, review the screenshot above for example.
Using your master list, add look-ups to all three different columns and order as required.
Open SharePoint Designer and navigate to your list, create a new ‘NewItem’ form & a new ‘EditForm’.
Edit the forms in advanced mode and search for ‘PlaceHolderAdditionalPageHead’.
In this section is where you will paste the following code.