Adding Hyperlinks to Data Point Labels for Line Chart 1

[larrydavid]

Hello,

I'm using the ASP.NET Charting Controls with the NET 4.0 framework. I've been looking through the interactive samples and have figured out how to implement a line chart with the data point labels, but have been unable to find a solution for adding a hyperlink to these labels. The purpose is to enable the user to click on a data point label and be taken to a gridview which is populated with detail level data.

Any help or point in the right direction would be greatly appreciated!

Thanks,
Larry

 

[MarkSweetland]

Not sure if it what you want, but you can set the PostBackValue of the series to the index of the data point along with the X and Y values. Handle the postbback in the chart.Click handler.

Series.IsValueShownAsLabel = True
Series.PostBackValue = "#INDEX|#VALY|#VALX"

Private Sub Chart_Click(sender As Object, e As System.Web.UI.WebControls.ImageMapEventArgs) Handles Chart1.Click
        Debug.Print(e.PostBackValue)
End Sub

Mark

"You guys pair up in groups of three, then line up in a circle."
- Bill Peterson, a Florida State football coach

 

[larrydavid]

Hi Mark,

Thanks for your reply. Actually, what I'm looking for is an actual hyperlink that I can pass input parms to (from the Request object). This will supply the necessary parms to a stored procedure that fires to get the detail level data in the grid.

Hope that makes sense.

Thanks,
Larry

 

[MarkSweetland]

If you mean the the Request.QueryString, you can add this to your code too:

Series.LabelUrl = "[URL unfurl="true"]http://yourWebSite/yourPage.aspx?N="[/URL] & Series.Name & "&Y=#VALY&X=#VALX"

Mark

"You guys pair up in groups of three, then line up in a circle."
- Bill Peterson, a Florida State football coach

 

[larrydavid]

Ahhhh, I see. Let me work with this and let you know. Appreciate the help.