How to add Appendix in table of contents in word using VSTO.

Question

How to include appendix in table of contents in word using VSTO.Please anyone send me the code.

 

Here is my code

 

Microsoft.Office.Interop.Word.Application app = Globals.ThisAddIn.Application;

Microsoft.Office.Interop.Word.Document doc1 = app.ActiveDocument;

object oMissing = System.Type.Missing;

object oTrue = true;

object ofalse = false;

Selection wordsec = app.Selection;

wordsec.Font.Bold = 1;

wordsec.Font.Size = 14;

wordsec.ParagraphFormat.Alignment = WdParagraphAlignment.wdAlignParagraphCenter;

wordsec.TypeText("Appendices\n");

TableOfContents toc= doc1.TablesOfContents.Add(wordsec.Range, ref oTrue, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oTrue,

ref oTrue, ref oMissing, ref oTrue, ref oTrue, ref oTrue);

toc.TabLeader = WdTabLeader.wdTabLeaderDots;

toc.Update();

Microsoft.Office.Interop.Word.Range rngTOC = toc.Range;

rngTOC.Font.Size = 12;

rngTOC.Font.Name = "Arial";

rngTOC.Font.Bold = 0;

if (checkBoxColor.Checked == true)

{

rngTOC.Font.Color = WdColor.wdColorBlue;

}

wordsec.set_Style(WdBuiltinStyle.wdStyleNormal);

this.Hide();