Adding Tooltip in a RadChart Legend

[Anette]

Hi,

How do you add a tooltip in a chart legend?

Thanks.

Anette

[Giuseppe]

Hello Anette,

You need to set the ActiveRegion.Tooltip property for each LabelItem in the RadChart.Legend.Items collection -- you can achieve that by handling the BeforeLayout server-side event like this:

protected void RadChart1_BeforeLayout(object sender, EventArgs e)
{
    foreach (LabelItem legendItem in RadChart1.Legend.Items)
    {
        legendItem.ActiveRegion.Tooltip = "test";
    }
}

Best wishes,
Manuel
the Telerik team

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[Anette]

Hello Manuel

How about if I need to add different tooltip for each legend items?

Thanks,
Anette

[Giuseppe]

Hi Anette,

We are unsure why are you experiencing problems with this as you can assign different tooltips to the different LabelItems as well (instead of using a foreach loop):

RadChart1.Legend.Items[0].ActiveRegion.Tooltip = "test";
RadChart1.Legend.Items[1].ActiveRegion.Tooltip = "test2";

Best wishes,
Manuel
the Telerik team

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[Michael Nagy]

hello all ,
i am using Reporting service and i add chart items dynamically i want to add a toolttip to chart item ..
here is code sample ..

 

ChartSeries series = new ChartSeries();
myChart.Series.Add(series);
ChartSeriesItem item = new ChartSeriesItem();
item.YValue = value ;
item.Label.TextBlock.Text = text;
item.Name = text;
item.ActiveRegion.Tooltip=text; // here is my question.
series.AddItem(item);

all things went right but there is no tool tip at the item..

 

 

so please i need a help

 

 

[Steve]

Hello Michael,

If by Reporting services, you're reffering to our Telerik Reporting solution, then as explained in the known limitations forum thread, interactive features are currently not supported.

Please excuse us for the inconvenience.

Regards,
Steve
the Telerik team

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[Nadine]

Hi,

you wrote that Tooltips for series-items are not available...
but if the LabelText of an item is too long for the pul area, the LabelText is shown with the ellipse "..." and then there IS a tooltip.

So I would think, that this functionality is already available but not for us to use... is that right?

Thank you

Nadine

[Steve]

Hello Nadine,

As can be seen from the attached screenshot, "the tooltip" is always the alt tag of the chart image when the report is rendered in browser i.e. alt="Chart". Currently there is no way to show tooltips and other interactive features as explained in the previously referred thread.

All the best,
Steve
the Telerik team

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