Issue casting a HealthRecordItem (AppSpecificDataType) to my custom wrapper type

Question

I have a HealthVault application built using the 0.15.2016.4015 version of the HealthVault assemblies.
Since the HealthVault platform has changed since then, causing issues with the Basic datatype, I decided to upgrade the assemblies to latest version - 2.1.0.0.
Ever since I updated to this version, my application specific data type casting has stopped working.
I have made sure that the code is as per the guidelines and answers mentioned at https://social.msdn.microsoft.com/Forums/en-US/e7c195c4-3bf3-473e-b8c6-d6d1a1b3cdc3/problem-casting-a-healthrecorditem-to-my-custom-wrapper-type.
Here is the error message that I keep getting:
Unable to cast object of type 'Microsoft.Health.ItemTypes.ApplicationSpecific' to type 'CustomNamespace.CustomHealthTypeWrapper'.
I'm unable to proceed further with my application till this issue is resolved. 
Any help is highly appreciated.

Answer 1

Hi,
Simple way to hide the columns from the Edit or New form is use the PowerShell command.
$webUrl = Get-SPWeb http://<<servername>>/mysite
$listName = $web.Lists["<<listName>>"]
$columnName = $list.Fields["<<column name>>"]
//If you want to hide the column from Edit Form then Change the ShowInEditForm property and update objects
$columnName.ShowInEditForm = $false
//If you want to hide the column from New Form then Change the ShowInNewForm property and update objects
$columnName.ShowInNewForm=$false
$columnName.Update()
$listName.Update()
$webUrl.Dispose()
Each column has supports following properties, it can be controlled either using powershell or CSOM or JSOM or server object model.  Even you can controlled while creating the list definition using Visual studio by setting the following
property.
ShowInDisplayForm
Gets or sets a Boolean value that specifies whether the field is displayed in the form for displaying list items.
ShowInEditForm
Gets or sets a Boolean value that specifies whether the field is displayed in the form that is used to edit list items.
ShowInListSettings
Gets or sets a Boolean value that specifies whether the field is displayed in the page for customizing list settings.
ShowInNewForm
Gets or sets a Boolean value that specifies whether the field is displayed in the form that is used to create list items.
ShowInVersionHistory
Gets or sets a Boolean value that specifies whether the field is displayed in the page for viewing list item versions.
ShowInViewForms
Gets or sets a Boolean value that specifies whether the field is displayed in pages that are used to view list data.
Please mark it as answered, if your problem resolved or helpful.