System.Xml.Schema.Compiler.SetDefaultFixed C# (CSharp) Méthode

        private void SetDefaultFixed(XmlSchemaAttribute xa, SchemaAttDef decl) {
            if (xa.DefaultValue != null || xa.FixedValue != null) {
                if (xa.DefaultValue != null) {
                    decl.Presence = SchemaDeclBase.Use.Default; 
                    decl.DefaultValueRaw = decl.DefaultValueExpanded = xa.DefaultValue;
                }
                else {
                    if (xa.Use == XmlSchemaUse.Required) {
                        decl.Presence = SchemaDeclBase.Use.RequiredFixed;
                    }
                    else {
                        decl.Presence = SchemaDeclBase.Use.Fixed; 
                    }
                    decl.DefaultValueRaw = decl.DefaultValueExpanded = xa.FixedValue;
                }
                if(decl.Datatype != null) {
                    if (decl.Datatype.TypeCode == XmlTypeCode.Id) {
                        SendValidationEvent(Res.Sch_DefaultIdValue, xa);
                    }
                    else {
                        decl.DefaultValueTyped = decl.Datatype.ParseValue(decl.DefaultValueRaw, NameTable, new SchemaNamespaceManager(xa), true);
                    }
                }
            }
            else {
                switch (xa.Use) {
                    case XmlSchemaUse.None: 
                    case XmlSchemaUse.Optional: 
                        decl.Presence = SchemaDeclBase.Use.Implied; 
                        break;
                    case XmlSchemaUse.Required: 
                        decl.Presence = SchemaDeclBase.Use.Required; 
                        break;
                    case XmlSchemaUse.Prohibited:
                        break;
                }
            }
        }