SerializerDescriptor.DefaultFileExtension Property

Definition

Namespace:

System.Windows.Documents.Serialization

Assembly:

PresentationFramework.dll

Gets the default extension associated with files that the serializer outputs.

public:
 property System::String ^ DefaultFileExtension { System::String ^ get(); };

public string DefaultFileExtension { get; }

member this.DefaultFileExtension : string

Public ReadOnly Property DefaultFileExtension As String

Property Value

String

The default extension associated with files that the serializer outputs.

Examples

The following examples illustrate using DefaultFileExtension to return the default file extensions for installed plug-in serializers.

// Create a SerializerProvider for accessing plug-in serializers.
SerializerProvider serializerProvider = new SerializerProvider();

// Locate the serializer that matches the fileName extension.
SerializerDescriptor selectedPlugIn = null;
foreach ( SerializerDescriptor serializerDescriptor in
                serializerProvider.InstalledSerializers )
{
    if ( serializerDescriptor.IsLoadable &&
         fileName.EndsWith(serializerDescriptor.DefaultFileExtension) )
    {   // The plug-in serializer and fileName extensions match.
        selectedPlugIn = serializerDescriptor;
        break; // foreach
    }
}

// If a match for a plug-in serializer was found,
// use it to output and store the document.
if (selectedPlugIn != null)
{
    Stream package = File.Create(fileName);
    SerializerWriter serializerWriter =
        serializerProvider.CreateSerializerWriter(selectedPlugIn,
                                                  package);
    IDocumentPaginatorSource idoc =
        flowDocument as IDocumentPaginatorSource;
    serializerWriter.Write(idoc.DocumentPaginator, null);
    package.Close();
    return true;
}

// ------------------------ PlugInFileFilter --------------------------
/// <summary>
///   Gets a filter string for installed plug-in serializers.</summary>
/// <remark>
///   PlugInFileFilter is used to set the SaveFileDialog or
///   OpenFileDialog "Filter" property when saving or opening files
///   using plug-in serializers.</remark>
private string PlugInFileFilter
{
    get
    {   // Create a SerializerProvider for accessing plug-in serializers.
        SerializerProvider serializerProvider = new SerializerProvider();
        string filter = "";

        // For each loadable serializer, add its display
        // name and extension to the filter string.
        foreach (SerializerDescriptor serializerDescriptor in
            serializerProvider.InstalledSerializers)
        {
            if (serializerDescriptor.IsLoadable)
            {
                // After the first, separate entries with a "|".
                if (filter.Length > 0)   filter += "|";

                // Add an entry with the plug-in name and extension.
                filter += serializerDescriptor.DisplayName + " (*" +
                    serializerDescriptor.DefaultFileExtension + ")|*" +
                    serializerDescriptor.DefaultFileExtension;
            }
        }

        // Return the filter string of installed plug-in serializers.
        return filter;
    }
}