FieldSeq

FieldSeq class

Implements the SEQ field.

public class FieldSeq : Field

Constructors

Name Description
FieldSeq() The default constructor.

Properties

Name Description
BookmarkName { get; set; } Gets or sets a bookmark name that refers to an item elsewhere in the document rather than in the current location.
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.
InsertNextNumber { get; set; } Gets or sets whether to insert the next sequence number for the specified item.
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.
ResetHeadingLevel { get; set; } Gets or sets an integer number representing a heading level to reset the sequence number to. Returns -1 if the number is absent.
ResetNumber { get; set; } Gets or sets an integer number to reset the sequence number to. Returns -1 if the number is absent.
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.
SequenceIdentifier { get; set; } Gets or sets the name assigned to the series of items that are to be numbered.
Start { get; } Gets the node that represents the start of the field.
virtual Type { get; } Gets the Microsoft Word field type.

Methods

Name Description
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.

Remarks

Sequentially numbers chapters, tables, figures, and other user-defined lists of items in a document.

Examples

Shows create numbering using SEQ fields.

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

// SEQ fields display a count that increments at each SEQ field.
// These fields also maintain separate counts for each unique named sequence
// identified by the SEQ field's "SequenceIdentifier" property.
// Insert a SEQ field that will display the current count value of "MySequence",
// after using the "ResetNumber" property to set it to 100.
builder.Write("#");
FieldSeq fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "MySequence";
fieldSeq.ResetNumber = "100";
fieldSeq.Update();

Assert.AreEqual(" SEQ  MySequence \\r 100", fieldSeq.GetFieldCode());
Assert.AreEqual("100", fieldSeq.Result);

// Display the next number in this sequence with another SEQ field.
builder.Write(", #");
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "MySequence";
fieldSeq.Update();

Assert.AreEqual("101", fieldSeq.Result);

// Insert a level 1 heading.
builder.InsertBreak(BreakType.ParagraphBreak);
builder.ParagraphFormat.Style = doc.Styles["Heading 1"];
builder.Writeln("This level 1 heading will reset MySequence to 1");
builder.ParagraphFormat.Style = doc.Styles["Normal"];

// Insert another SEQ field from the same sequence and configure it to reset the count at every heading with 1.
builder.Write("\n#");
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "MySequence";
fieldSeq.ResetHeadingLevel = "1";
fieldSeq.Update();

// The above heading is a level 1 heading, so the count for this sequence is reset to 1.
Assert.AreEqual(" SEQ  MySequence \\s 1", fieldSeq.GetFieldCode());
Assert.AreEqual("1", fieldSeq.Result);

// Move to the next number of this sequence.
builder.Write(", #");
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "MySequence";
fieldSeq.InsertNextNumber = true;
fieldSeq.Update();

Assert.AreEqual(" SEQ  MySequence \\n", fieldSeq.GetFieldCode());
Assert.AreEqual("2", fieldSeq.Result);

doc.UpdateFields();
doc.Save(ArtifactsDir + "Field.SEQ.ResetNumbering.docx");

Shows how to combine table of contents and sequence fields.

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

// A TOC field can create an entry in its table of contents for each SEQ field found in the document.
// Each entry contains the paragraph that contains the SEQ field,
// and the number of the page that the field appears on.
FieldToc fieldToc = (FieldToc)builder.InsertField(FieldType.FieldTOC, true);

// Configure this TOC field to have a SequenceIdentifier property with a value of "MySequence".
fieldToc.TableOfFiguresLabel = "MySequence";

// Configure this TOC field to only pick up SEQ fields that are within the bounds of a bookmark
// named "TOCBookmark".
fieldToc.BookmarkName = "TOCBookmark";
builder.InsertBreak(BreakType.PageBreak);

Assert.AreEqual(" TOC  \\c MySequence \\b TOCBookmark", fieldToc.GetFieldCode());

// SEQ fields display a count that increments at each SEQ field.
// These fields also maintain separate counts for each unique named sequence
// identified by the SEQ field's "SequenceIdentifier" property.
// Insert a SEQ field that has a sequence identifier that matches the TOC's
// TableOfFiguresLabel property. This field will not create an entry in the TOC since it is outside
// the bookmark's bounds designated by "BookmarkName".
builder.Write("MySequence #");
FieldSeq fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "MySequence";
builder.Writeln(", will not show up in the TOC because it is outside of the bookmark.");

builder.StartBookmark("TOCBookmark");

// This SEQ field's sequence matches the TOC's "TableOfFiguresLabel" property and is within the bookmark's bounds.
// The paragraph that contains this field will show up in the TOC as an entry.
builder.Write("MySequence #");
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "MySequence";
builder.Writeln(", will show up in the TOC next to the entry for the above caption.");

// This SEQ field's sequence does not match the TOC's "TableOfFiguresLabel" property,
// and is within the bounds of the bookmark. Its paragraph will not show up in the TOC as an entry.
builder.Write("MySequence #");
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "OtherSequence";
builder.Writeln(", will not show up in the TOC because it's from a different sequence identifier.");

// This SEQ field's sequence matches the TOC's "TableOfFiguresLabel" property and is within the bounds of the bookmark.
// This field also references another bookmark. The contents of that bookmark will appear in the TOC entry for this SEQ field.
// The SEQ field itself will not display the contents of that bookmark.
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "MySequence";
fieldSeq.BookmarkName = "SEQBookmark";
Assert.AreEqual(" SEQ  MySequence SEQBookmark", fieldSeq.GetFieldCode());

// Create a bookmark with contents that will show up in the TOC entry due to the above SEQ field referencing it.
builder.InsertBreak(BreakType.PageBreak);
builder.StartBookmark("SEQBookmark");
builder.Write("MySequence #");
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "MySequence";
builder.Writeln(", text from inside SEQBookmark.");
builder.EndBookmark("SEQBookmark");

builder.EndBookmark("TOCBookmark");

doc.UpdateFields();
doc.Save(ArtifactsDir + "Field.SEQ.Bookmark.docx");

Shows how to populate a TOC field with entries using SEQ fields.

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

// A TOC field can create an entry in its table of contents for each SEQ field found in the document.
// Each entry contains the paragraph that includes the SEQ field and the page's number that the field appears on.
FieldToc fieldToc = (FieldToc)builder.InsertField(FieldType.FieldTOC, true);

// SEQ fields display a count that increments at each SEQ field.
// These fields also maintain separate counts for each unique named sequence
// identified by the SEQ field's "SequenceIdentifier" property.
// Use the "TableOfFiguresLabel" property to name a main sequence for the TOC.
// Now, this TOC will only create entries out of SEQ fields with their "SequenceIdentifier" set to "MySequence".
fieldToc.TableOfFiguresLabel = "MySequence";

// We can name another SEQ field sequence in the "PrefixedSequenceIdentifier" property.
// SEQ fields from this prefix sequence will not create TOC entries. 
// Every TOC entry created from a main sequence SEQ field will now also display the count that
// the prefix sequence is currently on at the primary sequence SEQ field that made the entry.
fieldToc.PrefixedSequenceIdentifier = "PrefixSequence";

// Each TOC entry will display the prefix sequence count immediately to the left
// of the page number that the main sequence SEQ field appears on.
// We can specify a custom separator that will appear between these two numbers.
fieldToc.SequenceSeparator = ">";

Assert.AreEqual(" TOC  \\c MySequence \\s PrefixSequence \\d >", fieldToc.GetFieldCode());

builder.InsertBreak(BreakType.PageBreak);

// There are two ways of using SEQ fields to populate this TOC.
// 1 -  Inserting a SEQ field that belongs to the TOC's prefix sequence:
// This field will increment the SEQ sequence count for the "PrefixSequence" by 1.
// Since this field does not belong to the main sequence identified
// by the "TableOfFiguresLabel" property of the TOC, it will not appear as an entry.
FieldSeq fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "PrefixSequence";
builder.InsertParagraph();

Assert.AreEqual(" SEQ  PrefixSequence", fieldSeq.GetFieldCode());

// 2 -  Inserting a SEQ field that belongs to the TOC's main sequence:
// This SEQ field will create an entry in the TOC.
// The TOC entry will contain the paragraph that the SEQ field is in and the number of the page that it appears on.
// This entry will also display the count that the prefix sequence is currently at,
// separated from the page number by the value in the TOC's SeqenceSeparator property.
// The "PrefixSequence" count is at 1, this main sequence SEQ field is on page 2,
// and the separator is ">", so entry will display "1>2".
builder.Write("First TOC entry, MySequence #");
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "MySequence";

Assert.AreEqual(" SEQ  MySequence", fieldSeq.GetFieldCode());

// Insert a page, advance the prefix sequence by 2, and insert a SEQ field to create a TOC entry afterwards.
// The prefix sequence is now at 2, and the main sequence SEQ field is on page 3,
// so the TOC entry will display "2>3" at its page count.
builder.InsertBreak(BreakType.PageBreak);
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
fieldSeq.SequenceIdentifier = "PrefixSequence";
builder.InsertParagraph();
fieldSeq = (FieldSeq)builder.InsertField(FieldType.FieldSequence, true);
builder.Write("Second TOC entry, MySequence #");
fieldSeq.SequenceIdentifier = "MySequence";

doc.UpdateFields();
doc.Save(ArtifactsDir + "Field.TOC.SEQ.docx");

See Also