看一下
样本环境 （主要是交互性和AJAX部分）。

你可以试试这样的例子：

 Chart1.Series（" Series1"）。MapAreaAttributes =" onclick ="" testFunction（'＃SER'，＃INDEX）;""" 
 Chart1.Series（" Series1"）。Url ="＃" '只是为了得到"手"光标

Hello,

I need to display a popup window with details when a point in column chart got clicked.  For example, there is list of employees, if emp_id 5 is clicked, all the details of emp_id 5 gets displayed in the popup window. 

I tried calling a js function to create a popup in this event but the postback is causing the graph to disappear once the user clicks on it.

Does anyone know how i can make it work?   Any help or suggestions is greately apprecited.

 protected  void chrt_Click(object sender, ImageMapEventArgs e)
         {
            var doorNumber = e.PostBackValue;
             var xStr = 100;
             var yStr = 200;
             string script = String.Format("test({0},{1})", xStr, yStr);
             this.Page.ClientScript.RegisterStartupScript(this.GetType(),
             "testFunction", script, true);
          }      
   }
Below is my HTML markup code:

   <asp:Chart ID="Chart1" runat="server" Width="850px" Height="230" OnClick="chrt_Click">
        <Series>
            <asp:Series Name="Series1" IsValueShownAsLabel="true" PostBackValue="#VALX" />
        </Series>
        <ChartAreas>
            <asp:ChartArea Name="ChartArea1" />
        </ChartAreas>
    </asp:Chart>

Have a look at the Samples Environment (Mainly the Interactivity and AJAX section).

You could try something like this for example:

Chart1.Series("Series1").MapAreaAttributes = "onclick=""testFunction('#SER', #INDEX);"""
Chart1.Series("Series1").Url = "#" 'Just to get the "hand" cursor