I am able to read just 1st line of my WORD file

hello all,
i am using following code to read WORD File
      Dim wordApp As New Word.ApplicationClass()
      Dim nullobj As Object = System.Reflection.Missing.Value
      Dim doc As Word.Document = wordApp.Documents.Open(Session("resumepath"))
      Dim doc1 As Word.Document = wordApp.ActiveDocument
      Dim m_Content As String = doc1.Content.Text

        txtresume.Text = m_Content
        txtresume.Text = doc1.Content.Text

        doc.Close()
        wordApp.Quit()

 The code works fine but in the textbox i see just very first line ....can anyone tell me where is the fault ??

 ( i have added COM reference..that sho ...