public virtual void SaveDiagram(DslModeling::SerializationResult serializationResult, NavigationLanguageDiagram diagram, string diagramFileName, global::System.Text.Encoding encoding, bool writeOptionalPropertiesWithDefaultValue)
		{
			#region Check Parameters
			if (serializationResult == null)
				throw new global::System.ArgumentNullException("serializationResult");
			if (diagram == null)
				throw new global::System.ArgumentNullException("diagram");
			if (string.IsNullOrEmpty(diagramFileName))
				throw new global::System.ArgumentNullException("diagramFileName");
			#endregion
	
			if (serializationResult.Failed)
				return;
	
			using (global::System.IO.MemoryStream diagramFileContent = this.InternalSaveDiagram(serializationResult, diagram, diagramFileName, encoding, writeOptionalPropertiesWithDefaultValue))
			{
				if (!serializationResult.Failed)
				{
					// Only write the contents if there's no error encountered during serialization.
					if (diagramFileContent != null)
					{
						using (global::System.IO.FileStream fileStream = new global::System.IO.FileStream(diagramFileName, global::System.IO.FileMode.Create, global::System.IO.FileAccess.Write, global::System.IO.FileShare.None))
						{
							using (global::System.IO.BinaryWriter writer = new global::System.IO.BinaryWriter(fileStream, encoding))
							{
								writer.Write(diagramFileContent.ToArray());
							}
						}
					}
				}
			}
		}
		/// <summary>
		/// Saves the given diagram to the given file, with default encoding (UTF-8).
		/// </summary>
		/// <param name="serializationResult">Stores serialization result from the save operation.</param>
		/// <param name="diagram">NavigationLanguageDiagram to be saved.</param>
		/// <param name="diagramFileName">Name of the file in which the diagram will be saved.</param>
		/// <param name="writeOptionalPropertiesWithDefaultValue">Whether optional properties with default value will be saved.</param>
		public virtual void SaveDiagram(DslModeling::SerializationResult serializationResult, NavigationLanguageDiagram diagram, string diagramFileName, bool writeOptionalPropertiesWithDefaultValue)
		{
			this.SaveDiagram(serializationResult, diagram, diagramFileName, global::System.Text.Encoding.UTF8, writeOptionalPropertiesWithDefaultValue);
		}
		internal protected virtual NavigationLanguageDiagram CreateDiagramHelper(DslModeling::Partition diagramPartition, DslModeling::ModelElement modelRoot)
		{
			NavigationLanguageDiagram diagram = new NavigationLanguageDiagram(diagramPartition);
			return diagram;
		}
		/// <summary>
		/// Saves the given diagram to the given file, with default encoding (UTF-8), and optional properties with default value will not
		/// be written out.
		/// </summary>
		/// <param name="serializationResult">Stores serialization result from the save operation.</param>
		/// <param name="diagram">NavigationLanguageDiagram to be saved.</param>
		/// <param name="diagramFileName">Name of the file in which the diagram will be saved.</param>
		public virtual void SaveDiagram(DslModeling::SerializationResult serializationResult, NavigationLanguageDiagram diagram, string diagramFileName)
		{
			this.SaveDiagram(serializationResult, diagram, diagramFileName, global::System.Text.Encoding.UTF8, false);
		}
		internal global::System.IO.MemoryStream InternalSaveDiagram(DslModeling::SerializationResult serializationResult, NavigationLanguageDiagram diagram, string diagramFileName, global::System.Text.Encoding encoding, bool writeOptionalPropertiesWithDefaultValue)
		{
			#region Check Parameters
			global::System.Diagnostics.Debug.Assert(serializationResult != null);
			global::System.Diagnostics.Debug.Assert(diagram != null);
			global::System.Diagnostics.Debug.Assert(!serializationResult.Failed);
			#endregion
	
			DslModeling::DomainXmlSerializerDirectory directory = this.GetDirectory(diagram.Store);
	
			
			global::System.IO.MemoryStream newFileContent = new global::System.IO.MemoryStream();
			
			DslModeling::SerializationContext serializationContext = new DslModeling::SerializationContext(directory, diagramFileName, serializationResult);
			this.InitializeSerializationContext(diagram.Partition, serializationContext, false);
			// MonikerResolver shouldn't be required in Save operation, so not calling SetupMonikerResolver() here.
			serializationContext.WriteOptionalPropertiesWithDefaultValue = writeOptionalPropertiesWithDefaultValue;
			global::System.Xml.XmlWriterSettings settings = NavigationLanguageSerializationHelper.Instance.CreateXmlWriterSettings(serializationContext, true, encoding);
			using (global::System.Xml.XmlWriter writer = global::System.Xml.XmlWriter.Create(newFileContent, settings))
			{
				this.WriteRootElement(serializationContext, diagram, writer);
			}
	
			return newFileContent;
		}