programatically show tooltip

[Ekstein michael]

HI,

is there a way to programticaly show the tooltip on a given chart item?

please advise

[Parthiban Sundaram]

Hi Ekstein,

We have analyzed and prepared the sample based on your requirement using Dependency Service in Xamarin Forms. Please download the sample from following location.

Sample : http://www.syncfusion.com/downloads/support/forum/124883/ze/Sample-64298658 

Thanks,
Parthiban S 

Tooltip

[Ekstein michael]

Hi Parthiban,

thank you for you replay 

I'm not sure I explain my needed correctly

my screen is divided into two part

I have some data with X/Y/Name ...

1. chart (ScatterSeries in my case) show the data on the graph

2. list of items name - show the name of the event with more info

I need the following:

when the user select item on the list, to popup the tooltip of the relevant item on the graph.

not sure from your example how to achieve this.

also,

more question:

1. can I show some image on the graph at a desire location?

2. Can I get the X/Y position of a give item on the chart? 

please advise,

Michael

[Parthiban Sundaram]

Hi Ekstein,

We have analyzed and prepared the sample based on your requirement. Please download the sample from following location.

Sample : http://www.syncfusion.com/downloads/support/forum/124883/ze/Tooltip-1557116351 

Thanks, 

Parthiban S 

[Ekstein michael]

Hi Parthiban

many thanks for your assistance.

But, unfortunately I'm not there yet.

I have few issue:

1. my x-Axis is datetime and I have no idea how to convert the datetime into double - I assume the change is in the yellow part 

if ((data as ChartDataPoint).XValue.ToString().Equals(e.SelectedItem.ToString()))

{

float pointX = (float)(chart.ValueToPoint(chart.PrimaryAxis, (double)(dataModel.DataPoints.IndexOf(data) + 1)));

float pointY = (float)(chart.ValueToPoint(chart.SecondaryAxis, (data as ChartDataPoint).YValue));

toolTip.ShowTooltip(pointX, pointY, chart);

break;

}

2. I'm using  TooltipTemplate - using your ChartTooltipExt somehow cause two tooltip to popup, one the regular and than the template one.

I'm using XAML to define my chart, I have no problem to define it in code

3. I have few data series from different kind on the chart, I need this behaviour only on one of them (hope this doesn't change anything)

many thanks for your assistance

[Ekstein michael]

one more thing,

I have 4 series on the chart.

it popup all the tooltip at once once I tap on the screen,

I need it to popup only a single one

[Ekstein michael]

hope this is the last thing

I'm replacing the chart data

if the chart has a tooltip shown it stay there and not being removed

is there a way to hide it?

[Yuvaraj Palanisamy]

Hi Ekstein,

We have prepared the sample based on your requirement. Please download the sample from following location.

Sample : http://www.syncfusion.com/downloads/support/forum/124883/ze/Tooltip243696331  

Thanks,
Yuvaraj