FieldAutoNum class

Implements the AUTONUM field.

To learn more, visit the Working with Fields documentation article.

public class FieldAutoNum : Field


FieldAutoNum()The default constructor.


DisplayResult { get; }Gets the text that represents the displayed field result.
End { get; }Gets the node that represents the field end.
Format { get; }Gets a FieldFormat object that provides typed access to field’s formatting.
IsDirty { get; set; }Gets or sets whether the current result of the field is no longer correct (stale) due to other modifications made to the document.
IsLocked { get; set; }Gets or sets whether the field is locked (should not recalculate its result).
LocaleId { get; set; }Gets or sets the LCID of the field.
Result { get; set; }Gets or sets text that is between the field separator and field end.
Separator { get; }Gets the node that represents the field separator. Can be null.
SeparatorCharacter { get; set; }Gets or sets the separator character to be used.
Start { get; }Gets the node that represents the start of the field.
virtual Type { get; }Gets the Microsoft Word field type.


GetFieldCode()Returns text between field start and field separator (or field end if there is no separator). Both field code and field result of child fields are included.
GetFieldCode(bool)Returns text between field start and field separator (or field end if there is no separator).
Remove()Removes the field from the document. Returns a node right after the field. If the field’s end is the last child of its parent node, returns its parent paragraph. If the field is already removed, returns null.
Unlink()Performs the field unlink.
Update()Performs the field update. Throws if the field is being updated already.
Update(bool)Performs a field update. Throws if the field is being updated already.


Inserts an automatic number.


Shows how to number paragraphs using autonum fields.

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

// Each AUTONUM field displays the current value of a running count of AUTONUM fields,
// allowing us to automatically number items like a numbered list.
// This field will display a number "1.".
FieldAutoNum field = (FieldAutoNum)builder.InsertField(FieldType.FieldAutoNum, true);
builder.Writeln("\tParagraph 1.");

Assert.AreEqual(" AUTONUM ", field.GetFieldCode());

field = (FieldAutoNum)builder.InsertField(FieldType.FieldAutoNum, true);
builder.Writeln("\tParagraph 2.");

// The separator character, which appears in the field result immediately after the number,is a full stop by default.
// If we leave this property null, our second AUTONUM field will display "2." in the document.

// We can set this property to apply the first character of its string as the new separator character.
// In this case, our AUTONUM field will now display "2:".
field.SeparatorCharacter = ":";

Assert.AreEqual(" AUTONUM  \\s :", field.GetFieldCode());

doc.Save(ArtifactsDir + "Field.AUTONUM.docx");

See Also