2
You could take a look at this article. It talks about padding numbers with leading zeroes which you may be able to modify with a calculated column.
Below is the general idea, slightly modified to your situation.
=CONCATENATE(
[Column1],
"-",
REPT("0",4-LEN([Column2])),
[Column2],
"-",
[Column3]
)
Column1 is the field of your first ...
2
No this is not possible. Sharepoint Platform does't have an field level security. You can do some smoke and mirror solution with Infopath\PowerAPp but nothing will stop user from creating a custom view and modify the content directly in the list. For some cases such solution is enough.
2
Option 1:
Does it have to be entirely in SharePoint? Why not build the page out using exactly the things that you know, HTML/CSS/JS and make all of your connections to a SharePoint list?
Option 2:
Edit the form in SharePoint designer.
1
KGlasier's approach works perfectly in my test list.
Only top voted, non community-wiki answers of a minimum length are eligible
