Currently we're only able to get one validation error from the codeunit XML Validation of the System Application.

It would be very useful if there was support for getting all the validation errors.

There is a good C# example from Microsoft on how to do this:

https://learn.microsoft.com/en-us/dotnet/standard/data/xml/xml-schema-xsd-validation-with-xmlschemaset#validate-xml-documents

I don't know if this can be implemented in AL, but maybe something like the following will work.

var

[WithEvents]

XmlReaderSettings: DotNet XmlReaderSettings;

trigger XmlReaderSettings::ValidationEventHandler(sender: Variant; e: DotNet ValidationEventArgs)

var

ValidationResult: Dictionary of [Text, Text];

XmlSeverityType: DotNet XmlSeverityType;

begin

if e.Severity = XmlSeverityType.Error then

; //TODO: Save Error

ValidationResult.Add('Severity', e.Severity.ToString());

ValidationResult.Add('Message', e.Message());

ValidationResultList.Add(ValidationResult);

end;