How Can I Change the Format of Tooltip in PowerPoint Line Chart in C#?

Aspose.Slides Product Family
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@s1pandey,
Unfortunately, your code example is containing many unknown symbols. I cannot use it to investigate the issue. Please, prepare an isolated code sample without your application code.

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Its Okay…that will take time. but atleast u can understand my problem from requirement and code what i have used. and can give a solution . can we have a call I can show you… We have subscription for this product.

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@s1pandey,
I figured out your issue after seeing your presentation “BestFit - Copy.pptx” from another topic. You mean this: tooltip.png (17.1 KB). Aspose.Slides cannot change these tooltips. I don’t see such a feature in PowerPoint as well. If I missed it, please share a screenshot explaining how to do it.

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u can check in SOC Histogram (2).zip file attached its working there.that is dummy file.SOC Histogram (2).zip (489.2 KB)

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@s1pandey,
Could you describe how did you do that, please?

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I have no idea … I got this file as requirement

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@s1pandey,
Didn’t you do it in PowerPoint?

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No… I have not.

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@s1pandey,
It will take me a while to figure this out. I will answer you later.

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@s1pandey,
I logged the issue in our tracking system with ID SLIDESNET-42603. Our development team will consider an ability to implement this feature.

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What is the expected time it can take. as I have some deadline for this

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@s1pandey,
I requested an estimated time to fix this issue from our development team. I will let you know as soon as possible.

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@s1pandey,
Our development team investigated the issue. Tooltips are elements of PowerPoint application. They are not formattable. The tooltip shows data in the format of the data stored in the object. In this case, this is the chart series object. The code snippet below provides the desired result:

chart.ChartData.SeriesGroups[groupIndex].Series[seriesIndex].NumberFormatOfValues = "0.00%";

Documents: Chart Data Label, Chart Formatting
API Reference: IChartSeries Interface

1 Like
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Its working thanks for support. appreciate effert.

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How can we customize tooltip to a new string value for each marker value

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@s1pandey,
To understand your requirements, please describe more details or provide a screenshot.

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tooltip.png (17.1 KB)

Can I costomize above tooltip text

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@s1pandey,
Please take a look at my answer above.

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The above solution is to format the values.
I want to customize the complete tooltip text.

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@s1pandey,
I understood. Unfortunately, as I mentioned earlier, there is no way to customize the tooltips directly.
Tooltips are not stored in the presentation content. Applications can represent them in different ways. Please take a look at how LibreOffice shows the same tooltip: LibreOffice_tooltip.png (20.8 KB).