Value of type 'Integer' cannot be converted to 'System.Data.SqlClient.SqlDataAdapter' for ExecuteNonQuery on insert SQL

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim requester As SqlDataReader
        Dim connectionstring As String = ConfigurationManager.ConnectionStrings("MMS V4 Leeds current").ConnectionString
        Dim conn As New SqlConnection(connectionstring)
        Dim comm As New SqlCommand("INSERT INTO WebSysSurvey (WOID, CreatedDate, RequiredDate, Status, WhoRequest, Notes) VALUES (@WOID, @CreatedDate, @RequiredDate, @Status, @WhoRequest, @Notes)", conn)
        'add data vairables
        comm.Parameters.Add("@WOID", Data.SqlDbType.BigInt)
        comm.Parameters("@WOID").Value = System.Int32.Parse(Request.QueryString("WOID"))
        comm.Parameters.Add("@CreatedDate", Data.SqlDbType.Date)
        comm.Parameters("@CreatedDate").Value = Today()
        comm.Parameters.Add("@RequiredDate", Data.SqlDbType.Date)
        comm.Parameters("@RequiredDate").Value = DatePicker1.DateValue
        comm.Parameters.Add("@Status", Data.SqlDbType.NVarChar)
        comm.Parameters("@Status").Value = "Unallocated"
        comm.Parameters.Add("@WhoRequest", Data.SqlDbType.NVarChar)
        comm.Parameters("@WhoRequest").Value = Request.ServerVariables("LOGON_USER")
        comm.Parameters.Add("@Notes", Data.SqlDbType.Text)
        comm.Parameters("@Notes").Value = Notes.Text
        Try
            conn.Open()
            requester = comm.ExecuteNonQuery
            
        Catch ex As Exception
 
        Finally
            conn.Close()
            
        End Try
    End Sub