Avoid creating .png file in server through ASP.Net chart control

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C#2.0

C#

Hello I am using ASP.Net 2.0 charting control and in local machine if i run am getting graph and also not creating any files into my folder. when I run the same from server am getting the graph and also image of chart is being generated in the root folder of the server. How to avoid creating files in server.

Below is my pages both .aspx and .cs

---.aspx page contains

<asp:Chart ID="Chart1" runat="server" Width="950">
                    <Series>
                        <asp:Series Name="Series1">
                        </asp:Series>
                        <asp:Series Name="Series2">
                        </asp:Series>
                    </Series>
                    <ChartAreas>
                        <asp:ChartArea Name="ChartArea1">
                        </asp:ChartArea>
                    </ChartAreas>
                </asp:Chart>

and my .cs file contains

In page load am calling

protected void Page_Load(object sender, EventArgs e)
   {

this.Chart1.DataSource = list;
        ConfigureChart();
    }

private void ConfigureChart()
    {
        Chart1.Titles.Add(new Title("Amount Collection Graph"));
        ConfigurTitle(Chart1.Titles[0]);
        ConfigureArea(Chart1.ChartAreas[0]);
        ConfigureSeries(Chart1.Series[0], "X", "Y1");
        Chart1.Series[1].ChartArea = Chart1.ChartAreas[0].Name;
    }
    private void ConfigureArea(ChartArea area)
    {
        //configure Chart Areas:
        area.ShadowColor = Color.Gray;
        area.ShadowOffset = 10;
        area.AxisY.Title = "Amount in Rs.";
        area.AxisX.Title = "Day's";
        area.AxisX.IsMarginVisible = true;
        area.Area3DStyle.Enable3D = display3d;
    }
    private void ConfigurTitle(Title title)
    {
        //configure Title:
        title.BorderColor = Color.Silver;
        title.BorderDashStyle = ChartDashStyle.Solid;
        title.ShadowColor = Color.Gray;
        title.ShadowOffset = 6;
        title.Font = new Font(FontFamily.GenericSansSerif, (float)13);
        title.IsDockedInsideChartArea = true;
    }
    private void ConfigureSeries(Series series, string xValue, string vValue)
    {
        //configure Series:
        series.XValueMember = xValue;
        //series
        //series["ShowMarkerLines"] = "True";
        series.YValueMembers = vValue;
        series.MarkerStyle = MarkerStyle.Square;
        series.IsValueShownAsLabel = showValues;
        series.Color = System.Drawing.Color.DodgerBlue;
        series.BorderColor = System.Drawing.Color.Blue;
        //series.XAxisType = AxisType.Secondary;
        series.ChartType = SeriesChartType.Line;
    }