怎么捕抓饼状图的点击事件啊，就是点击饼图的某一块获取当前点击这一块的索引，想实现点击饼图的哪一块，哪一块就改变其颜色属性
 在网上找的是C#代码
 protected void Page_Load(object sender, EventArgs e)
    {
        this.Chart1.Click += new ImageMapEventHandler(Chart1_Click);
        foreach (Series series in this.Chart1.Series)
        {
            series.PostBackValue = "#INDEX";
        }
    }

 protected void Chart1_Click(object sender, ImageMapEventArgs e)
    {
        ViewState["no"] = e.PostBackValue.ToString();
    }
的写法该怎么样去写啊，求哪位好心大神给个写法啊


[ 本帖最后由 撒地方 于 2014-6-19 11:02 编辑 ]