chart tooltip with the values other that XVAL & YVAL, from the datatable

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ASP.NET

C#3.5

chart

<asp:Chart ID="Chart1" runat="server"  Height="350px" Width="600px" Style="text-align: center;
             margin-left: auto; margin-right: auto; ">
             <Titles>

                <asp:Title Font="Times New Roman, 12pt, style=Bold, Italic" Name="Title1" Text="Daily MeatSale Graph">
                </asp:Title>
            </Titles>
            <Legends>
                <asp:Legend Docking="Bottom" IsTextAutoFit="False" Name="MeatinKgs" LegendStyle="Row" />
            </Legends>
            <Series>
                <asp:Series Name="Meat in Kgs" ToolTip="#VALX [#VALY Kgs]" YValuesPerPoint="1" />
            </Series>
            <ChartAreas>
                <asp:ChartArea Name="ChartArea1">
                </asp:ChartArea>
            </ChartAreas>
        </asp:Chart>

.CS page code Here

dtmeatgraph = objRetailBAL.getdatewisegraph(objRetailPL);

DataTable dttooltip = new DataTable();
dttooltip = dtmeatgraph.Tables[1].Copy();
string[] x = new string[dtmeatgraph.Tables[0].Rows.Count];
int[] y = new int[dtmeatgraph.Tables[0].Rows.Count];

for (int i = 0; i < dtmeatgraph.Tables[0].Rows.Count; i++)
{
    x[i] = dtmeatgraph.Tables[0].Rows[i][1].ToString();
    y[i] = Convert.ToInt32(dtmeatgraph.Tables[0].Rows[i][0]);

}

Chart1.Series[0].Points.DataBindXY(x,y);
Chart1.Series[0].ChartType = SeriesChartType.Column;
Chart1.ChartAreas[0].AxisX.LabelStyle.Angle = -90;
Chart1.ChartAreas[0].AxisX.LabelStyle.Interval = 1;
Chart1.Series[0].IsValueShownAsLabel = true;
Chart1.ChartAreas[0].AxisX.Title = "Dates";
Chart1.ChartAreas[0].AxisY.Title = "Meat In Kgs";

Here I need to display my tool tip values from datatable
"dtmeatgraph.Tables[1].Rows.Count".

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