Using NumberingFieldsProvider

Updated on Feb 19, 2026

The NumberingFieldsProvider is used for calculating the layout of the document. This is necessary when updating the fields values. For example to calculate the total number of pages.

Requirements

To use the default implementation of the NumberingFieldsProvider you need to reference the Telerik.Documents.Flow.FormatProviders.Pdf package.

Setting the default implementation

The default provider can be set with the following code:

Example 1: Register the default NumberingFieldsProvider

c#

Telerik.Windows.Documents.Flow.Extensibility.FlowExtensibilityManager.NumberingFieldsProvider = new Telerik.Windows.Documents.Flow.FormatProviders.Pdf.NumberingFieldsProvider();

Using the RegisterNumberingStyleConverter

This method allows you to use a custom numbering style converter.

Example 2: Register custom NumberingStyleConverter

c#

Telerik.Windows.Documents.Flow.FormatProviders.Pdf.NumberingFieldsProvider numberingFieldsProvider = new Telerik.Windows.Documents.Flow.FormatProviders.Pdf.NumberingFieldsProvider();
numberingFieldsProvider.RegisterNumberingStyleConverter(NumberingStyle.ChineseCounting, new NumberingStyleConverter());

The NumberingStyleConverter must implement the INumberingStyleConverter interface which has one method that takes a number and converts it to a string.

See Also

• Updating TOC Page Numberings in Word Documents Before Exporting to DOCX Format