How to unlink footer and headers in word using C# ?

Question

Hi,

I am trying to merge word documents. When i am trying merge i am getting the previous documents header & footer in second document. Please tell me how to set link to previous false.

Please Find below code..

object missing = Type.Missing;

                Word.Application objWordApp = new Word.Application();

                Word.Document objWordDoc = new Word.Document();

                Word.Range wrdRange = objWordDoc.Range(ref missing, ref missing);

                Word.Section wrdSection = wrdRange.Sections.Add(ref missing, ref missing); 

                object objSectionBreakNextPage = Word.WdBreakType.wdSectionBreakNextPage;

                

                object objDestinationDoc = "E:\\MergeTemplates\\Test.doc";

                object sourceFileName1 = @"E:\MergeTemplates\Document1.doc";

                var varSourceDoc1 = objWordApp.Documents.Open(sourceFileName1, false, false, ref missing,

                                        ref missing, ref missing, ref missing, ref missing,

                                        ref missing, ref missing, ref missing, true,

                                        ref missing, ref missing, ref missing, ref missing);

                varSourceDoc1.Activate();

                varSourceDoc1.ActiveWindow.Selection.WholeStory();

                varSourceDoc1.ActiveWindow.Selection.Copy();

                varSourceDoc1.Close(false);

                objWordDoc = objWordApp.Documents.Add(ref missing, ref missing, ref missing, true);

                objWordDoc.Activate();

                objWordDoc.ActiveWindow.Selection.PasteAndFormat(Word.WdRecoveryType.wdFormatOriginalFormatting);

                wrdSection.Footers[Word.WdHeaderFooterIndex.wdHeaderFooterPrimary].LinkToPrevious = false;

                wrdSection.Footers[Word.WdHeaderFooterIndex.wdHeaderFooterPrimary].Range.FormattedText = objWordDoc.Sections[1].Footers[Word.WdHeaderFooterIndex.wdHeaderFooterPrimary].Range.FormattedText;

                wrdSection.Headers[Word.WdHeaderFooterIndex.wdHeaderFooterPrimary].LinkToPrevious = false;

                wrdSection.Headers[Word.WdHeaderFooterIndex.wdHeaderFooterPrimary].Range.FormattedText = objWordDoc.Sections[1].Headers[Word.WdHeaderFooterIndex.wdHeaderFooterPrimary].Range.FormattedText;

                objWordApp.Selection.InsertBreak(ref objSectionBreakNextPage);

                objWordApp.ActiveDocument.SaveAs(objDestinationDoc, ref missing, ref missing,

                                                ref missing, ref missing, ref missing, ref missing,

                                                ref missing, ref missing, ref missing, ref missing);

                objWordApp.ActiveDocument.Close(ref missing, ref missing, ref missing);