Listening

In some cases there is the need to monitor conversion process and to receive update for start, progress and completion of a conversion. For such situations GroupDocs.Conversion expose extension point where the client application may hook up and receive updates.. 

To enable listening you have to:

• Implement you own implementation of IConverterListener interface
• Instantiate ConverterSettings class and pass an instance of the class created in first step
• Pass ConverterSettings object factory to constructor of a Converter class
• Call Convert method of Converter class

Here is a code that demonstrates how to enable listening for GroupDocs.Conversion.

public class ConverterListener : IConverterListener
{
    public void Started()
    {
        Console.WriteLine("Conversion started...");
    }
    public void Progress(byte current)
    {
        Console.WriteLine($"... {current} % ...");
    }
    public void Completed()
    {
        Console.WriteLine("... conversion completed");
    }
}

IConverterListener listener = new ConverterListener();
Contracts.Func<ConverterSettings> settingsFactory = () => new ConverterSettings
{
    Listener = listener
};
using (Converter converter = new Converter("sample.docx", settingsFactory))
{
    PdfConvertOptions options = new PdfConvertOptions();
    converter.Convert("converted.pdf", options);
}

More resources

GitHub Examples

You may easily run the code above and see the feature in action in our GitHub examples:

• GroupDocs.Conversion for .NET examples, plugins, and showcase
• GroupDocs.Conversion for Java examples, plugins, and showcase
• Document Conversion for .NET MVC UI Example
• Document Conversion for .NET App WebForms UI Modern Example
• Document Conversion for Java App Dropwizard UI Modern Example
• Document Conversion for Java Spring UI Example

Free Online Document Converter Apps

Along with full-featured .NET library we provide free Apps and free services for document conversion. In order to see a full potential of GroupDocs.Conversion, you are welcome to convert DOC to PDF, DOC to XLSX, PDF to DOC, PDF to XLSX, PPT to DOC and more with Free Online Document Converter App or get a full advantage of Free Online Document Converter Suite with advanced conversion settings and many more enterprise built-in features.

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