https://learn.microsoft.com/cs-cz/dotnet/api/system.xml.schema.xmlschemaparticle.maxoccursstring?view=netframework-4.8.1&viewFallbackFrom=net-10.0
XmlSchemaParticle.MaxOccursString Property (System.Xml.Schema) | Microsoft Learn
Gets or sets the number as a string value. Maximum number of times the particle can occur.
property systemxml schemamicrosoftlearn