How to seralize dataview object in json

Hello all i have code snippet like this

  Case "adhoc_searchResult"
                    Dim cubeid As Integer = Request("cubeid")
                    Dim dimArr As String = Request("dimArr")
                    Dim tmethod As String = Request("tmethod")
                    Dim tstr As String = Request("tstr")
                    Dim search_result As DataView = New DataView()

                    search_result = HostAnalytics.HostAnalyzer.HostAnalyzer.getDimensionSearchResults(cubeid, dimArr, tmethod, tstr)
                    Response.Write(JsonConvert.SerializeObject(search_result))

                Case Else
                    Response.Write("Invalid call")
            End Select
        Catch ex As Exception
            Common.GetLogErrorInJson("105", "Following error occurred while getting data : " & ex.Message &am开发者_如何学运维p; " :: " & ex.StackTrace().ToString())
        End Try
    End Sub

End Class

Here in the vb method, it is returning Dataview object, and now i am serializing this with jsonconver.serializeObject(). but it is throwing an expcetion stating like that cirular reference occurs... but the getDimensionSearchResult() method returning correct value, that value is not capturing in this code block. how to overcome this and is there any mistake in my code, please help me.

Thanks