DEVX Web chart control

Question

i am using DEVX Webchart control..

Bind x-Axis values:

<dxchartsui:WebChartControl ID="ChartOPCGraph" runat="server" Height="400px" Width="700px"
                                                            ClientInstanceName="ChartOPCGraph" DiagramTypeName="XYDiagram">
                                                            <Diagram>
                                                                  <axisy>

                                                       <gridlines visible="False"></gridlines>

                                                       </axisy>
                                                            </Diagram>
                                                            <Titles>
                                                                  <cc1:ChartTitle Dock="Bottom" Font="Tahoma, 8pt" Text="Days" TextColor="Gray" Alignment="Center">
                                                                  </cc1:ChartTitle>
                                                                  <cc1:ChartTitle Dock="Left" Font="Tahoma, 8pt" Text="% Payment made" TextColor="Gray"
                                                                        Alignment="Center"></cc1:ChartTitle>
                                                            </Titles>
                                                      </dxchartsui:WebChartControl>

values are being populated from database. On x-axis only two number comes from database so i need to bind only these two values and rest of them must not be visible.

For example i get 9 number from database and it binds 8.6,8.7,8.8,8.9,9,9.2,......

Need a quick reply..