I am getting error in property Style

Question

Here is my code

 

 

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

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

 

foreach (var para in doc1.Paragraphs)

{

AddItemToCollection(objcol, ('\t' + (para.Style.TrimStart() + ('\t' + (para.Style.Font.Name.TrimStart() + ('\t' + (para.Style.Font.Size.TrimStart() + (char)11)))))));

}

 

I am getting error in Style in every place.

 

can anyone help me?