XmlSchemaIntegrityValidationWarning Enum

Namespace

System.Xml.Schema

Assembly

System.Xml.dll

Summary

Specifies the type of warning that can be raised when validating the integrity of an XML schema. These warnings do not prevent a schema from being loaded but indicate potential issues that may affect validation behavior.

Declaration

public enum XmlSchemaIntegrityValidationWarning

Members

Name	Value	Description
None	0	No warning.
DuplicateAnnotation	1	Multiple `<annotation>` elements were found for the same component.
MissingTargetNamespace	2	The schema does not specify a `targetNamespace`.
RedundantImport	3	An `<import>` is redundant because the namespace is already included.
UnsupportedExtension	4	The schema uses an extension that is not recognized by the current runtime.
ConflictingVersion	5	Different versions of the same schema are referenced.

Example

using System;
using System.Xml.Schema;

class Program
{
    static void Main()
    {
        var schemaSet = new XmlSchemaSet();
        schemaSet.ValidationEventHandler += (sender, e) =>
        {
            if (e.Severity == XmlSeverityType.Warning)
                Console.WriteLine($""Warning: {e.Message}"");
        };
        schemaSet.Add(@"http://example.com/schema", "example.xsd");
        schemaSet.Compile();
    }
}

Remarks

When a warning of this type is encountered, the XmlSchemaSet.ValidationEventHandler is invoked with XmlSeverityType.Warning. You can decide whether to treat warnings as errors by throwing an exception within the handler.

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