Novacode.DocX.DeleteHeadersOrFooters C# (CSharp) Method

        internal void DeleteHeadersOrFooters(bool b)
        {
            string reference = "footer";
            if (b)
                reference = "header";

            // Get all header Relationships in this document.
            var header_relationships = mainPart.GetRelationshipsByType(string.Format("http://schemas.openxmlformats.org/officeDocument/2006/relationships/{0}", reference));

            foreach (PackageRelationship header_relationship in header_relationships)
            {
                // Get the TargetUri for this Part.
                Uri header_uri = header_relationship.TargetUri;

                // Check to see if the document actually contains the Part.
                if (!header_uri.OriginalString.StartsWith("/word/"))
                    header_uri = new Uri("/word/" + header_uri.OriginalString, UriKind.Relative);

                if (package.PartExists(header_uri))
                {
                    // Delete the Part
                    package.DeletePart(header_uri);

                    // Get all references to this Relationship in the document.
                    var query =
                    (
                        from e in mainDoc.Descendants(XName.Get("body", w.NamespaceName)).Descendants()
                        where (e.Name.LocalName == string.Format("{0}Reference", reference)) && (e.Attribute(r + "id").Value == header_relationship.Id)
                        select e
                    );

                    // Remove all references to this Relationship in the document.
                    for (int i = 0; i < query.Count(); i++)
                        query.ElementAt(i).Remove();

                    // Delete the Relationship.
                    package.DeleteRelationship(header_relationship.Id);
                }
            }
        }