将SerializableAttribute序列化为xml

从这个例子中，你可以知道：

1，如何将stream转化为string

2，如何将searializableAttribute属性序列化为xml

有MetadataObject定义为：

/// <remarks/>
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(ActionParameter))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(Action))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(AssociationGroup))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(TypeDescriptor))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(Parameter))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(FilterDescriptor))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(Identifier))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(LobSystemInstance))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(IndividuallySecurableMetadataObject))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(MethodInstance))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(Association))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(Method))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(Entity))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(LobSystem))]
    [System.Xml.Serialization.XmlIncludeAttribute(typeof(Model))]
    [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
    [System.SerializableAttribute()]
    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.ComponentModel.DesignerCategoryAttribute("code")]
    [System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://schemas.microsoft.com/windows/2007/BusinessDataCatalog")]
    public abstract partial class MetadataObject
    {

        private LocalizedDisplayName[] localizedDisplayNamesField;

        private Property[] propertiesField;

        private string nameField;

        private string defaultDisplayNameField;

        private bool isCachedField;

        public MetadataObject()
        {
            this.isCachedField = true;
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlArrayItemAttribute(IsNullable = false)]
        public LocalizedDisplayName[] LocalizedDisplayNames
        {
            get
            {
                return this.localizedDisplayNamesField;
            }
            set
            {
                this.localizedDisplayNamesField = value;
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlArrayItemAttribute(IsNullable = false)]
        public Property[] Properties
        {
            get
            {
                return this.propertiesField;
            }
            set
            {
                this.propertiesField = value;
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        public string Name
        {
            get
            {
                return this.nameField;
            }
            set
            {
                this.nameField = value;
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        public string DefaultDisplayName
        {
            get
            {
                return this.defaultDisplayNameField;
            }
            set
            {
                this.defaultDisplayNameField = value;
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        [System.ComponentModel.DefaultValueAttribute(true)]
        public bool IsCached
        {
            get
            {
                return this.isCachedField;
            }
            set
            {
                this.isCachedField = value;
            }
        }
    }

下面一个函数将其转化为xml的string：

public static string GetXmlFromModel(MetadataObject metadataObject)
        {
            MemoryStream ms = new MemoryStream();
            XmlSerializer serializer = new XmlSerializer(metadataObject.GetType());
            serializer.Serialize(ms, metadataObject);
            return System.Text.ASCIIEncoding.ASCII.GetString(ms.ToArray(), 0, ms.ToArray().Length);
        }