Data

CustomPart.Data property

Contains the data of this custom part.

public byte[] Data { get; set; }

Remarks

This property is applicable only when IsExternal is false.

The default value is an empty byte array. The value cannot be null.

Examples

Shows how to access a document’s arbitrary custom parts collection.

Document doc = new Document(MyDir + "Custom parts OOXML package.docx");

Assert.That(doc.PackageCustomParts.Count, Is.EqualTo(2));

// Clone the second part, then add the clone to the collection.
CustomPart clonedPart = doc.PackageCustomParts[1].Clone();
doc.PackageCustomParts.Add(clonedPart);
Assert.That(doc.PackageCustomParts.Count, Is.EqualTo(3));

// Enumerate over the collection and print every part.
using (IEnumerator<CustomPart> enumerator = doc.PackageCustomParts.GetEnumerator())
{
    int index = 0;
    while (enumerator.MoveNext())
    {
        Console.WriteLine($"Part index {index}:");
        Console.WriteLine($"\tName:\t\t\t\t{enumerator.Current.Name}");
        Console.WriteLine($"\tContent type:\t\t{enumerator.Current.ContentType}");
        Console.WriteLine($"\tRelationship type:\t{enumerator.Current.RelationshipType}");
        Console.WriteLine(enumerator.Current.IsExternal ?
            "\tSourced from outside the document" :
            $"\tStored within the document, length: {enumerator.Current.Data.Length} bytes");
        index++;
    }
}

// We can remove elements from this collection individually, or all at once.
doc.PackageCustomParts.RemoveAt(2);

Assert.That(doc.PackageCustomParts.Count, Is.EqualTo(2));

doc.PackageCustomParts.Clear();

Assert.That(doc.PackageCustomParts.Count, Is.EqualTo(0));

See Also

CustomPart.ContentType CustomPart.IsExternal