clear method
clear()
Removes all properties from the collection.
def clear(self):
...
Examples
Shows how to work with a document’s custom properties.
doc = aw.Document()
properties = doc.custom_document_properties
self.assertEqual(0, properties.count)
# Custom document properties are key-value pairs that we can add to the document.
properties.add("Authorized", True)
properties.add("Authorized By", "John Doe")
properties.add("Authorized Date", datetime.now())
properties.add("Authorized Revision", doc.built_in_document_properties.revision_number)
properties.add("Authorized Amount", 123.45)
# The collection sorts the custom properties in alphabetic order.
self.assertEqual(1, properties.index_of("Authorized Amount"))
self.assertEqual(5, properties.count)
# Print every custom property in the document.
for prop in properties:
print(f"Name: \"{prop.name}\"\n\tType: \"{prop.type}\"\n\tValue: \"{prop.value}\"")
# Display the value of a custom property using a DOCPROPERTY field.
builder = aw.DocumentBuilder(doc)
field = builder.insert_field(" DOCPROPERTY \"Authorized By\"").as_field_doc_property()
field.update()
self.assertEqual("John Doe", field.result)
# We can find these custom properties in Microsoft Word via "File" -> "Properties" > "Advanced Properties" > "Custom".
doc.save(ARTIFACTS_DIR + "DocumentProperties.document_property_collection.docx")
# Below are three ways or removing custom properties from a document.
# 1 - Remove by index:
properties.remove_at(1)
self.assertFalse(properties.contains("Authorized Amount"))
self.assertEqual(4, properties.count)
# 2 - Remove by name:
properties.remove("Authorized Revision")
self.assertFalse(properties.contains("Authorized Revision"))
self.assertEqual(3, properties.count)
# 3 - Empty the entire collection at once:
properties.clear()
self.assertEqual(0, properties.count)
See Also
- module aspose.words.properties
- class DocumentPropertyCollection