go thru this link
http://www.codeproject.com/KB/web-image/FusionChartsHelperClass.aspx
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protected void btnShow_Click(object sender, EventArgs e)
{
FusionPieChart pieChart = new FusionPieChart();
pieChart.showNames = true;
pieChart.showPercentageInLabel = true;
pieChart.showPercentageValues = false;
string chartHtml = pieChart.CreateSetElement(BuildData(), FusionPieChart.Pie3D,
divPieChart.ClientID, "name", "value",
"text", "id", "test.aspx?id=", true, 600, 400);
divPieChart.InnerHtml = chartHtml;
FusionLineChart lineChart = new FusionLineChart();
//chartHtml = lineChart.CreateSetElememtForTrendChart(BuildData(),
divLineChart.ClientID, "name", "value", 100, 100);
chartHtml = lineChart.CreateSetElement(BuildData(), FusionLineChart.Line2D,
divLineChart.ClientID, false, "", "name",
"value", "text", "id", "", true, 600, 400);
divLineChart.InnerHtml = chartHtml;
}