Thanks David for your answer but i dont understand what you mean. May be any example or sample to illustrate it.

Thank you very much

just use the ChartDataClicked event to take appropriate action when a click occurs.

    protected void UltraChart1_ChartDataClicked(object sender, ChartDataEventArgs e)
    {
        switch (e.DataRow)
        {
            case 0:
                this.UltraChart1.Data.DataSource = new double[] { 1, 2, 3 };
                break;
            case 1:
                this.UltraChart1.Data.DataSource = new double[] { 4, 5, 6 };
                break;
            case 2:
                this.UltraChart1.Data.DataSource = new double[] { 7, 8, 9 };
                break;
        }
        this.UltraChart1.Data.DataBind();
    }

my problem: alert("row: " + row + " column:" + column + " value: " + value + " row_label: " + row_label + " Column_Label: " + column_label + " layer_id: " + layer_id + " evt_Type: " + evt_type + " this_ref: " + this_ref.toString); and when the page load row , column are undefined. i remove juste this alert now it okay.

Thank u David

this worked okay for me when i tested it.  i added a chart to a page, handled the Page_Load, ChartDataClicked, and ClientOnMouseClick events as follows:

    protected void Page_Load(object sender, EventArgs e)
    {
        this.UltraChart1.Data.DataSource = Infragistics.UltraChart.Data.DemoTable.Table();
        this.UltraChart1.Data.DataBind();
    }
    protected void UltraChart1_ChartDataClicked(object sender, Infragistics.UltraChart.Shared.Events.ChartDataEventArgs e)
    {
        Response.Write("Server Click");
    }

function UltraChart1_ClientOnMouseClick(this_ref, row, column, value, row_label, column_label, evt_type, layer_id){
    alert("client click");
}

i saw both the alert message and the response.write when i clicked on a datapoint.  i have attached the sample project.  does this work for you?

Hi David,

There are no javascrip errors on the page when it first loads ....

The problem was that i use alert and the function which call when the User click on the Chart. Without alert function it works.

Thanks

do you see any javascript errors on the page when it first loads?  in the status bar perhaps?

Hello David,

Yes i did it but  it is still not working. Actually i try with ClientOnMouseClick on client side.

Thanks