DocumentPropertyCollection class
DocumentPropertyCollection class
Base class for BuiltInDocumentProperties and CustomDocumentProperties collections. To learn more, visit the Work with Document Properties documentation article.
Remarks
The names of the properties are case-insensitive.
The properties in the collection are sorted alphabetically by name.
Properties
Name | Description |
---|---|
count | Gets number of items in the collection. |
this[] | |
this[] |
Methods
Name | Description |
---|---|
clear() | Removes all properties from the collection. |
contains(name) | Returns true if a property with the specified name exists in the collection. |
indexOf(name) | Gets the index of a property by name. |
remove(name) | Removes a property with the specified name from the collection. |
removeAt(index) | Removes a property at the specified index. |
Examples
Shows how to work with a document’s custom properties.
let doc = new aw.Document();
let properties = doc.customDocumentProperties;
expect(properties.count).toEqual(0);
// 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", Date.now());
properties.add("Authorized Revision", doc.builtInDocumentProperties.revisionNumber);
properties.add("Authorized Amount", 123.45);
// The collection sorts the custom properties in alphabetic order.
expect(properties.indexOf("Authorized Amount")).toEqual(1);
expect(properties.count).toEqual(5);
// Print every custom property in the document.
/*for (let p of properties) {
console.log(`Name: \"${p.name}\"\n\tType: \"${p.type}\"\n\tValue: \"${p.toString()}\"`);
}*/
// Display the value of a custom property using a DOCPROPERTY field.
let builder = new aw.DocumentBuilder(doc);
let field = builder.insertField(" DOCPROPERTY \"Authorized By\"").asFieldDocProperty();
field.update();
expect(field.result).toEqual("John Doe");
// We can find these custom properties in Microsoft Word via "File" -> "Properties" > "Advanced Properties" > "Custom".
doc.save(base.artifactsDir + "DocumentProperties.DocumentPropertyCollection.docx");
// Below are three ways or removing custom properties from a document.
// 1 - Remove by index:
properties.removeAt(1);
expect(properties.contains("Authorized Amount")).toEqual(false);
expect(properties.count).toEqual(4);
// 2 - Remove by name:
properties.remove("Authorized Revision");
expect(properties.contains("Authorized Revision")).toEqual(false);
expect(properties.count).toEqual(3);
// 3 - Empty the entire collection at once:
properties.clear();
expect(properties.count).toEqual(0);
See Also
- module Aspose.Words.Properties
- class BuiltInDocumentProperties
- class CustomDocumentProperties