Section.BeginUpdateHeader(HeaderFooterType) Method

Starts editing the document’s header of the specified type.

Namespace: DevExpress.XtraRichEdit.API.Native

Assembly: DevExpress.RichEdit.v24.1.Core.dll

NuGet Packages: DevExpress.RichEdit.Core, DevExpress.Win.Navigation

Declaration

C#

SubDocument BeginUpdateHeader(
    HeaderFooterType type
)

VB.NET

Function BeginUpdateHeader(
    type As HeaderFooterType
) As SubDocument

Parameters

Name	Type	Description
type	HeaderFooterType	A HeaderFooterType enumeration value, representing the type of the header open for editing.

Returns

Type	Description
SubDocument	A SubDocument instance representing the header being edited.

Remarks

Use the Section.BeginUpdateHeader - Section.EndUpdateHeader method pair to edit header content. If the document has no header as yet, this method creates a header of the specified type and opens it for editing.

You can use the Section.HasHeader method to determine whether the document already has a header.

Example

View Example

HeaderAndFooterActions.cs

using (RichEditDocumentServer wordProcessor = new RichEditDocumentServer())
Document document = wordProcessor.Document;
    Section firstSection = document.Sections[0];

    // Check whether the document already has a header (the same header for all pages).
    if (!firstSection.HasHeader(HeaderFooterType.Primary))
    {
        //If not, create an empty header.
        SubDocument headerDocument = firstSection.BeginUpdateHeader();
        headerDocument.Paragraphs.Append();
        firstSection.EndUpdateHeader(headerDocument);
    }
}

HeaderAndFooterActions.vb

Using wordProcessor As New RichEditDocumentServer()
Dim document As Document = wordProcessor.Document
    Dim firstSection As Section = document.Sections(0)

    ' Check whether the document already has a header (the same header for all pages).
    If Not firstSection.HasHeader(HeaderFooterType.Primary) Then
        'If not, create an empty header.
        Dim headerDocument As SubDocument = firstSection.BeginUpdateHeader()
        headerDocument.Paragraphs.Append()
        firstSection.EndUpdateHeader(headerDocument)
    End If
End Using

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the BeginUpdateHeader(HeaderFooterType) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

word-processing-merge-documents-with-different-headers-and-footers/CS/DocumentMerger/Helpers/SectionsMerger.cs#L29

SubDocument source = sourceSection.BeginUpdateHeader(headerFooterType);
SubDocument target = targetSection.BeginUpdateHeader(headerFooterType);

word-document-api-use-track-changes/CS/word-processing-document-api-track-changes/Program.cs#L37

//Reject all revisions in the firts page's header:
SubDocument header = documentProcessor.Document.Sections[0].BeginUpdateHeader(HeaderFooterType.First);
documentRevisions.RejectAll(header);

winforms-rich-edit-manage-tracked-changes/CS/XtraRichEdit_TrackChanges/Form1.cs#L48

//Reject all revisions in the firts page's header:
SubDocument header = richEditControl1.Document.Sections[0].BeginUpdateHeader(HeaderFooterType.First);
documentRevisions.RejectAll(header);

wpf-richedit-document-api/CS/DXRichEditControlAPISample/CodeExamples/HeaderAndFooterActions.cs#L35

// Modify the header of the HeaderFooterType.First type.
SubDocument myHeader = firstSection.BeginUpdateHeader(HeaderFooterType.First);
DocumentRange range = myHeader.InsertText(myHeader.CreatePosition(0), " PAGE NUMBER ");

winforms-rich-edit-iterate-through-all-sub-documents/CS/SubDocumentIterator/SubDocumentHelper.cs#L29

{
    SubDocument header = section.BeginUpdateHeader(headerFooterType);
    subDocumentProcessor(header);

VB.NET

word-processing-merge-documents-with-different-headers-and-footers/VB/DocumentMerger/Helpers/SectionsMerger.vb#L28

If Not sourceSection.HasHeader(headerFooterType) Then Return
Dim source As SubDocument = sourceSection.BeginUpdateHeader(headerFooterType)
Dim target As SubDocument = targetSection.BeginUpdateHeader(headerFooterType)

word-document-api-use-track-changes/VB/word-processing-document-api-track-changes/Program.vb#L34

'Reject all revisions in the firts page's header:
Dim header As SubDocument = documentProcessor.Document.Sections(0).BeginUpdateHeader(HeaderFooterType.First)
documentRevisions.RejectAll(header)

winforms-rich-edit-manage-tracked-changes/VB/XtraRichEdit_TrackChanges/Form1.vb#L40

'Reject all revisions in the firts page's header:
Dim header As SubDocument = richEditControl1.Document.Sections(0).BeginUpdateHeader(HeaderFooterType.First)
documentRevisions.RejectAll(header)

wpf-richedit-document-api/VB/DXRichEditControlAPISample/CodeExamples/HeaderAndFooterActions.vb#L30

' Modify the header of the HeaderFooterType.First type.
Dim myHeader As SubDocument = firstSection.BeginUpdateHeader(HeaderFooterType.First)
Dim range As DocumentRange = myHeader.InsertText(myHeader.CreatePosition(0), " PAGE NUMBER ")

winforms-rich-edit-iterate-through-all-sub-documents/VB/SubDocumentIterator/SubDocumentHelper.vb#L24

If section.HasHeader(headerFooterType) Then
    Dim header As SubDocument = section.BeginUpdateHeader(headerFooterType)
    subDocumentProcessor(header)