What is the MasterPageFile attribute path to choose for Application Page placed inside list definition?

Question

I want to use my application page as custom NewForm.aspx for the list. So I configured list's Schema.xml to use new Form:

<Form Type="NewForm" Url="NewRequestPage.aspx" Path="NewRequestPage.aspx" WebPartZoneID="Main" />

Then I added application page into my list definition subfolder in the following way:

The issue consist in error that occurs when item creation page is called:

File /mhp-clean-evr/Lists/VisitRequestsList/masterurl/default.master does not exist

Currently MasterPageFile attribute value is "~masterurl/default.master".

What MasterPageFile attribute value to use to make my custom new form work?

Unfortunately I couldn't find an answer for this question yet.

Solution: Manually configure MasterPageFile property via changing it from PreInit event: ` protected void Page_PreInit(object sender, EventArgs e) { // Override master page this.MasterPageFile = "../../_catalogs/masterpage/seattle.master"; }` — Yura Mocherniuk, Sep 26, 2016 at 11:30

Prasanna Ruwangana · Accepted Answer · 2016-09-23 16:07:00Z

0

Try MasterPageFile attribute as

MasterPageFile="/_catalogs/masterpage/default.master"

answered Sep 23, 2016 at 16:07

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In this case I receive error: The resource cannot be found. HTTP 404. Requested URL: /mhp-clean-evr/Lists/VisitRequestsList/NewRequestPage.aspx I think this is quite strange because location of the page wasn't changed.
– Yura Mocherniuk
Sep 26, 2016 at 6:17

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