cannot refer to an instance member of a class from within a shared

Hi

I am trying to get an AJAX call working from asp.net working with VB. However, I am getting the error as per the above with when I am trying to pass an Id to a new method.

the code I am using is

<System.Web.Services.WebMethod()> _
    Public Shared Function writeSingleRecord(ByVal id As Long) As Boolean

        Try
            PrepareAndPassData(id)

            Return True

        Catch ex As Exception
            Return False

        End Try

    End Function

Public Sub PrepareAndPassData(id As Long)
        Dim listOfParameters As New List(Of SqlParameter)

        Dim validatedPaymentsParam As New SqlParameter("@Id's", SqlDbType.BigInt)
        validatedPaymentsParam.Value = getValidatedPayments()
        listOfParameters.Add(validatedPaymentsParam)

        'Dim dt = DataAccessLayer.GetDataAsDatatable(listOfParameters, _connstr, "usp_GetValidatedRecordsForPayment")
        'WriteToExcel(dt)
        Try
            WriteToExcel(DataAccessLayer.GetDataAsDatatable(listOfParameters, _charterProdConnstr, "usp_GetValidatedRecordsForPayment"))

        Catch ioEx As System.IO.IOException

            PassToErrorHandler(ioEx, System.Reflection.MethodInfo.GetCurrentMethod().ToString(), System.Reflection.Assembly.GetExecutingAssembly().GetName().Name)

        Catch ex As Exception
            PassToErrorHandler(ex, System.Reflection.MethodInfo.GetCurrentMethod().ToString(), System.Reflection.Assembly.GetExecutingAssembly().GetName().Name)

        End Try
    End Sub
  

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if I make the method a shared method this then causes the same error on my other methods.

In the method of WriteToExcel() if I make this a shared sub then Server.MapPath has this same issue too, along with other methods that are referred to too such as PassToErrorHandler.

And in the GetValidatedPayments method,

using this line

Dim cph As System.Web.UI.WebControls.ContentPlaceHolder = Master.FindControl("MainContent")

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causes the same error on Master.

Any and all help very much appreciated.

Thanks

Simon