XmlSchemaIntegrityValidationWarningResult Class

The XmlSchemaIntegrityValidationWarningResult class represents a warning generated during an integrity validation operation on an XML schema. Warnings are non‑critical issues that do not prevent the validation process from completing successfully but may indicate potential problems in the schema.

Namespace

System.Xml

Assembly

System.Xml.dll

Inheritance

System.Object → System.Xml.XmlSchemaIntegrityValidationWarningResult

Properties

Name	Type	Description
Message	string	Human‑readable description of the warning.
SourceUri	Uri	Location of the schema file that generated the warning.
LineNumber	int	Line number in the source file where the warning was detected.
LinePosition	int	Column position in the line where the warning was detected.
Severity	XmlSchemaSeverity	Level of severity (always `Warning` for this class).

Example

using System;
using System.Xml;
using System.Xml.Schema;

class Program
{
    static void Main()
    {
        XmlSchemaSet set = new XmlSchemaSet();
        set.ValidationEventHandler += ValidationCallback;

        // Load a schema that may produce warnings
        set.Add(null, "Schemas/Customer.xsd");
        set.Compile();
    }

    static void ValidationCallback(object sender, ValidationEventArgs e)
    {
        if (e.Severity == XmlSeverityType.Warning)
        {
            var warning = (XmlSchemaIntegrityValidationWarningResult)e.Exception;
            Console.WriteLine($"Warning: {warning.Message}");
            Console.WriteLine($"Location: {warning.SourceUri} (Line {warning.LineNumber}, Position {warning.LinePosition})");
        }
    }
}

View in .NET Framework 4.8 View in .NET 8.0

Remarks

The warning result can be cast from the ValidationEventArgs.Exception object when the Severity is XmlSeverityType.Warning. It provides detailed context about why the schema may be questionable, such as deprecated constructs, missing documentation, or non‑standard usage.