C Serialize Class To Xml
Jul 20, 2015 The class being serialized must have a public constructor without parameters. Robust Programming. The following conditions may cause an exception: The class being serialized does not have a public, parameterless constructor. The file exists and is read-only (IOException). The path is too long (PathTooLongException). The disk is full (IOException). I have a C# class that I have inherited. I have successfully 'built' the object. But I need to serialize the object to XML. Is there an easy way to do it? It looks like the class has been set up for.
| usingSystem; |
| usingSystem.IO; |
| usingSystem.Text; |
| usingSystem.Xml; |
| usingSystem.Xml.Serialization; |
| namespaceHeiswayiNrird.Utility.Common |
| { |
| publicstaticclassXmlHelper |
| { |
| /// <summary> |
| /// Serialize a serializable object to XML string. |
| /// </summary> |
| /// <typeparamname='T'>Type of object</typeparam> |
| /// <paramname='xmlObject'>Type of object</param> |
| /// <paramname='useNamespaces'>Use of XML namespaces</param> |
| /// <returns>XML string</returns> |
| publicstaticstringSerializeToXmlString<T>(TxmlObject, booluseNamespaces=true) |
| { |
| XmlSerializerxmlSerializer=newXmlSerializer(typeof(T)); |
| MemoryStreammemoryStream=newMemoryStream(); |
| XmlTextWriterxmlTextWriter=newXmlTextWriter(memoryStream, Encoding.UTF8); |
| xmlTextWriter.Formatting=Formatting.Indented; |
| if (useNamespaces) |
| { |
| XmlSerializerNamespacesxmlSerializerNamespaces=newXmlSerializerNamespaces(); |
| xmlSerializerNamespaces.Add('', ''); |
| xmlSerializer.Serialize(xmlTextWriter, xmlObject, xmlSerializerNamespaces); |
| } |
| else |
| xmlSerializer.Serialize(xmlTextWriter, xmlObject); |
| stringoutput=Encoding.UTF8.GetString(memoryStream.ToArray()); |
| string_byteOrderMarkUtf8=Encoding.UTF8.GetString(Encoding.UTF8.GetPreamble()); |
| if (output.StartsWith(_byteOrderMarkUtf8)) |
| { |
| output=output.Remove(0, _byteOrderMarkUtf8.Length); |
| } |
| returnoutput; |
| } |
| /// <summary> |
| /// Serialize a serializable object to XML string and create a XML file. |
| /// </summary> |
| /// <typeparamname='T'>Type of object</typeparam> |
| /// <paramname='xmlObject'>Type of object</param> |
| /// <paramname='filename'>XML filename with .XML extension</param> |
| /// <paramname='useNamespaces'>Use of XML namespaces</param> |
| publicstaticvoidSerializeToXmlFile<T>(TxmlObject, stringfilename, booluseNamespaces=true) |
| { |
| try |
| { |
| File.WriteAllText(filename, SerializeToXmlString<T>(xmlObject, useNamespaces)); |
| } |
| catch |
| { |
| thrownewException(); |
| } |
| } |
| /// <summary> |
| /// Deserialize XML string to an object. |
| /// </summary> |
| /// <typeparamname='T'>Type of object</typeparam> |
| /// <paramname='xml'>XML string</param> |
| /// <returns>XML-deserialized object</returns> |
| publicstaticTDeserializeFromXmlString<T>(stringxml) whereT : new() |
| { |
| TxmlObject=newT(); |
| XmlSerializerxmlSerializer=newXmlSerializer(typeof(T)); |
| StringReaderstringReader=newStringReader(xml); |
| xmlObject= (T)xmlSerializer.Deserialize(stringReader); |
| returnxmlObject; |
| } |
| /// <summary> |
| /// Deserialize XML string from XML file to an object. |
| /// </summary> |
| /// <typeparamname='T'>Type of object</typeparam> |
| /// <paramname='filename'>XML filename with .XML extension</param> |
| /// <returns>XML-deserialized object</returns> |
| publicstaticTDeserializeFromXmlFile<T>(stringfilename) whereT : new() |
| { |
| if (!File.Exists(filename)) |
| { |
| thrownewFileNotFoundException(); |
| } |
| returnDeserializeFromXmlString<T>(File.ReadAllText(filename)); |
| } |
| } |
| } |
commented Jan 21, 2019
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This example writes the object from a class to an XML file using the XmlSerializer class.
Example
Compiling the Code
The class being serialized must have a public constructor without parameters.
Serialize Xml File
Robust Programming
The following conditions may cause an exception:
The class being serialized does not have a public, parameterless constructor.
The file exists and is read-only (IOException).
The path is too long (PathTooLongException).
The disk is full (IOException).
.NET Framework Security
C# Xml Serialize To File
This example creates a new file, if the file does not already exist. If an application needs to create a file, that application needs Create access for the folder. If the file already exists, the application needs only Write access, a lesser privilege. Where possible, it is more secure to create the file during deployment, and only grant Read access to a single file, rather than Create access for a folder.