Detect file type of container item Leave feedback

GroupDocs.Parser provides the functionality to detect a file type of container items by DetectFileType method. FileTypeDetectionMode parameter provides the ability to control file type detection:

• Default. The file type is detected by the file extension; if the file extension isn’t recognized, the file type is detected by the file content.
• Extension. The file type is detected only by the file extension.
• Content. The file type is detected only by the file content.

Here are the steps to detect a file type of container items:

• Instantiate Parser object for the initial document;
• Call GetContainer method and obtain the collection of ContainerItem objects;
• Check if collection isn’t null (container extraction is supported for the document);
• Iterate through the collection and call DetectFileType method.

The following example shows how to detect a file type of container items:

// Create an instance of Parser class
using (Parser parser = new Parser(filePath))
{
    // Extract attachments from the container
    IEnumerable<ContainerItem> attachments = parser.GetContainer();
    // Check if container extraction is supported
    if (attachments == null)
    {
        Console.WriteLine("Container extraction isn't supported");
    }
    // Iterate over attachments
    foreach (ContainerItem item in attachments)
    {
        // Detect the file type
        Options.FileType fileType = item.DetectFileType(Options.FileTypeDetectionMode.Default);
         
        // Print the name and file type
        Console.WriteLine(string.Format("{0}: {1}", item.Name, fileType));
    }
}

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

• GroupDocs.Parser for .NET examples
• GroupDocs.Parser for Java examples

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You are welcome to parse documents and extract data from PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, Emails and more with our free online Free Online Document Parser App.