Showing label for specific itemMapping in RadChart

[Tamara]

Hi,

I have RadChart and pager for choosing an item from the chart.
This operation should show label for that specific itemMapping.

How should I implement that?

Thanks,

Tamara.

[Tamara]

Can anyone answer me please?

Thanks.

[Tamara]

Hi,

As I wrote before, I have problem to implement showing label for specific item from the chart.
Is it possible at all for SeriesDefintion? I know that for the LineSeries there is the PointMarks option.

Tamara

[Petar Marchev]

Hi Tamara,

I am unsure what is the final result that you are after. The RadChart does not have out-of-the-box functionality to show a label for a certain item. The chart shows either all labels or none.

Perhaps you can work this out, but the solution would highly depend on your set up. One way to go is to use the selection API of the chart (chart1.DefaultView.ChartArea.SelectItem and/or other methods) to select an item and handle the visibility of the label. You will need mainly to use code behind.

Another approach would be to use the hover effects to annotate an item. I have attached an item to demonstrate this.

Let us know if you were able to achieve the desired effect. If you need further assistance I will ask that you attach a snapshot of the desired effect, so that it is clear what you are after.

Regards,
Petar Marchev
Telerik

[Tamara]

Hi Petar,

Thank you for the help:)
In the end I created a popup outside of the chart because of matter of time.

I have another issue that I dont found solution for.
My RadChart's flow direction is left to right, but I need that the tooltip text of the itemMapping direction will be right to left.
How should I do that?

Regrads,

Tamara

[Petar Marchev]

Hello Tamara,

You can use the ItemToolTipOpening event of the ChartArea to set whatever visual you need inside the tool tip. You can check this example. You can create a brand new user control and define it in a right-to-left flow direction.

Regards,
Petar Marchev
Telerik