B: Person Attribute Forms Advanced - Matrix Attributes

[nateh777]

Expected Behavior

Matrix attributes to work properly in the form builder and on the actual form without exception. Like the Core version of the block on v16.2

Current Behavior

Error received when you try to add a value to a matrix:

Reported in SUP-765

Failure Information (for bugs)

Please help provide information about the failure if this is a bug. If it is not a bug, please remove the rest of this template.

Steps to Reproduce

Please provide detailed steps for reproducing the issue.

1. Setup a simple attribute matrix template (/admin/general/attribute-matrix)
2. Assign that matrix to a Person Attribute
3. Add the Person Attribute with a matrix to the person attribute form
4. Then try to use it, you will get the exception whether you try to add or edit a value.

Context

Please provide any relevant information about your setup. This is important in case the issue is not reproducible except for under certain conditions.

• Rock Version: Rock McKinley 16.2

Failure Logs

Invalid postback or callback argument. Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

Stack Trace:
at System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) at System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)