thanks alot Andrew

actually i work on this and your sample help me

when i can show tooltip like that i sent sample to you

have nice year

Hello Behzad,

In order to obtain the "column" result on your CategoryTooltipLayer, I would recommend a couple of approaches. The first is to do something along the lines of what I did in the original sample project that I had sent you, in that you construct a multi-column tooltip for each of your series. Or, perhaps you could do this for just a single series and set the TargetSeries property of the CategoryTooltipLayer. Since you are using a category series here, you can have access to all of your data points from a single series' tooltip, as the Item property of the data context will contain all of the value member properties of the other series as long as the ItemsSource of the series remains the same.

The alternative option is a bit more complex. The "stacked" layout that you are seeing with the CategoryTooltipLayer is internally created, but it can be overridden. To override this behavior, I would recommend that you pull in the default style for the CategoryTooltipLayer, and assign it to your CategoryTooltipLayer. This default style exists in the generic.xaml file commonly found at the following directory:

C:\Program Files (x86)\Infragistics\<your version here>\WPF\DefaultStyles\XamDataChart

After bringing in this style, I would recommend that you hook the Loaded event of the ContentPresenter that exists in that default style, either in a Behavior<ContentPresenter> or through code-behind. This is what shows the tooltip. When the Loaded event fires, I would recommend casting the sender of that event to your ContentPresenter and navigating down its visual tree to find your tooltip content. This structure is rather complex, as there are multiple ContentPresenters and ContentControls that you will need to walk through.

At a point, you will reach the StackPanel that is used for the current, internally created layout of the CategoryTooltipLayer. This StackPanel is what you need to replace, likely with a Grid with multiple columns or something of the like, but first you will need to get your actual tooltip content. Each of the Children in the StackPanel will be a ContentControl whose Content should be a CategoryToolTipItemContext element. The SubContent property of this element will return another ContentControl, whose Content will be your tooltip's content. You can then cache this content, detach it from its current parent, and place it in your multi-column tooltip structure that will replace the built-in StackPanel.

I have attached a sample project to demonstrate this process.

Please let me know if you have any other questions or concerns on this matter.

Sincerely,
Andrew
Associate Developer

dear andrew 

when i use CategoryTooltipLayer this show my tooltips like this picture and stacked all tooltips.

and i try build style for CategoryTooltipLayer.Style and don't acquire good result.

and i know ,you can help me :D

thanks 

Hello Behzad,

I am glad that the resolution property was able to help you on your requirement to show the series in the quality that you were looking for.

Regarding the tooltip, in the sample project that I had sent you, I had constructed a rough example with the CategoryTooltipLayer that looks much like the tooltip that exists in your screenshot, in that it follows the X Axis, and lines up multiple pieces of information about all of the series that correspond to each category. Would it be possible for you to please provide some information on how the CategoryTooltipLayer is not along the lines of the functionality that you are looking for with the tooltips on the XamDataChart?

Please let me know if you have any other questions or concerns on this matter.

Sincerely,
Andrew
Associate Developer

thanks for your reply

actually i test CategoryToolTipLayer but this is not satisfy me

i want to show tooltips like picture that i was sent .

for second my question you help me and i change resolution property  to shows series in good style.