Display chart in new tab window on Button click in ASP.Net

In run mode chart is displaying.

I have one button when i click that button i want to display that chart in new tab windows for that how to do in asp.net

My code as follow

<asp:Chart ID="Chart2" runat="server" BackColor="Gray" BackGradientStyle="None" Width="360px">
    <Series>
        <asp:Series Name="Series1" ChartType="Column" BorderColor="#669999" XValueMember="LeaveType" YValueMembers="percentage" IsValueShownAsLabel="true"></asp:Series>

    </Series>
    <ChartAreas>
        <asp:ChartArea Name="ChartArea1" BackColor="Silver" BackGradientStyle="None">
        </asp:ChartArea>
    </ChartAreas>
</asp:Chart>

Aspx page code as follows

    protected void BindGrid()
    {
        DataTable _objdt = new DataTable();
        _objdt.Columns.Add("LeaveType", typeof(string));
        _objdt.Columns.Add("percentage", typeof(long)); 

        _objdt.Columns.Add("LabelValue");
        var _objrow = _objdt.NewRow();
        _objrow["LeaveType"] = "Present";
        _objrow["percentage"] = 80;
        _objdt.Rows.Add(_objrow);
        _objrow = _objdt.NewRow();
        _objrow["LeaveType"] = "Absent";
        _objrow["percentage"] = 5;
        _objdt.Rows.Add(_objrow);

        _objrow = _objdt.NewRow();
        _objrow["LeaveType"] = "Leave";
        _objrow["percentage"] = 15;
        _objdt.Rows.Add(_objrow);

        Chart2.DataSource = _objdt;
        Chart2.DataBind();
        Chart2.ChartAreas["ChartArea1"].AxisX.MajorGrid.Enabled = false;
        Chart2.ChartAreas["ChartArea1"].AxisY.MajorGrid.Enabled = false;
        foreach (Series series in Chart2.Series)
        {
            foreach(DataPoint point in series.Points)
            {
                if (point.YValues[0] >= 50 && point.YValues[0] <= 90)
                {
                    point.Color = Color.RoyalBlue;
                }
                else if (point.YValues[0] >= 1 && point.YValues[0] <= 6)
                {
                    point.Color = Color.Yellow;
                }
                else
                {
                    point.Color = Color.Red;
                }
            }
        }
    }