From 02f2cf3a652f284640fc5944d869dc7829fd3859 Mon Sep 17 00:00:00 2001 From: AswiniDileep Date: Fri, 12 Dec 2025 10:59:12 +0530 Subject: [PATCH 1/3] MAUI-988662-[Others]: Updated UG for KB --- ...tooltip-and-data-labels-in-release-mode.md | 78 +++++++++++++++++++ maui-toc.html | 1 + 2 files changed, 79 insertions(+) create mode 100644 MAUI/Cartesian-Charts/display-tooltip-and-data-labels-in-release-mode.md diff --git a/MAUI/Cartesian-Charts/display-tooltip-and-data-labels-in-release-mode.md b/MAUI/Cartesian-Charts/display-tooltip-and-data-labels-in-release-mode.md new file mode 100644 index 0000000000..8851962ee1 --- /dev/null +++ b/MAUI/Cartesian-Charts/display-tooltip-and-data-labels-in-release-mode.md @@ -0,0 +1,78 @@ +--- +layout: post +title: Show tooltip and datalabels in release mode | Syncfusion +description: Learn here all about displaying tooltip and datalabels in release mode in SfCartesianChart in Syncfusion® .NET MAUI Chart (SfCartesianChart) control. +platform: maui-toolkit +control: SfCartesianChart +documentation: ug +keywords: .NET MAUI chart tooltip, .NET MAUI chart data label, TooltipInfo Item binding, ChartDataLabel Item binding, Release mode trimming, Preserve attribute MAUI. +--- + +# Display tooltip and data labels in release mode +In [SfCartesianChart](https://help.syncfusion.com/cr/maui-toolkit/Syncfusion.Maui.Toolkit.Charts.SfCartesianChart.html), tooltip and data label templates do not bind directly to your business model because these elements are generated by the chart at runtime and often represent calculated points. As a result, the chart provides its own binding context containing the necessary metadata. For tooltips this context is [TooltipInfo](https://help.syncfusion.com/cr/maui-toolkit/Syncfusion.Maui.Toolkit.Charts.TooltipInfo.html), and for data labels it is [ChartDataLabel](https://help.syncfusion.com/cr/maui-toolkit/Syncfusion.Maui.Toolkit.Charts.ChartDataLabel.html). Both expose an Item property that points back to your original business model when a direct mapping exists. With .NET 9 compiled bindings, set **x:DataType="chart:TooltipInfo"** for tooltip templates and **x:DataType="chart:ChartDataLabel"** for data label templates, then bind through Item. If you need a specific field from your model, bind to Item and use a value converter to extract the desired property. + +`Ahead-of-Time (AOT)` compilation converts Intermediate Language to native code at build time to improve startup and runtime performance. AOT commonly ships together with linker trimming in Release configurations to reduce app size. + +Because Release builds enable trimming, members referenced only from XAML can be removed unless explicitly preserved. To ensure your bindings work in Release, reference your value converter from XAML and preserve your ViewModel, business model, and converter types. This prevents the linker from removing properties that your tooltip or data label templates access through Item. + +{% tabs %} + +{% highlight xaml %} + + + + + + + + + + + + + + + + + + + + + +{% endhighlight %} + + +{% highlight C# %} + + public class ValueConverter : IValueConverter + { + public object Convert(object value, Type targetType, object parameter, CultureInfo culture) + { + return value is WeekPlan weekPlan ? weekPlan.Planned : value; + } + + public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) => value; + } + +{% endhighlight %} + +{% endtabs %} + +## See also + +[Why Tooltip and DataLabel Are Missing in Release Mode .NET MAUI Chart?](https://support.syncfusion.com/kb/article/21677/why-tooltip-and-datalabel-are-not-showing-in-release-mode-in-net-maui-sfcartesianchart) \ No newline at end of file diff --git a/maui-toc.html b/maui-toc.html index 202e289fdb..bcff2bc332 100644 --- a/maui-toc.html +++ b/maui-toc.html @@ -417,6 +417,7 @@
  • Add custom labels to the chart axis
  • Customize each chart axis label using the callback event
  • Get the data point collection based on region
    • +
  • Display tooltip and data labels in release mode
    • From a4577ded053c61f69a5572641363e8a070aad729 Mon Sep 17 00:00:00 2001 From: AswiniDileep Date: Fri, 12 Dec 2025 11:04:46 +0530 Subject: [PATCH 2/3] Updated proper links --- .../display-tooltip-and-data-labels-in-release-mode.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MAUI/Cartesian-Charts/display-tooltip-and-data-labels-in-release-mode.md b/MAUI/Cartesian-Charts/display-tooltip-and-data-labels-in-release-mode.md index 8851962ee1..7983de0149 100644 --- a/MAUI/Cartesian-Charts/display-tooltip-and-data-labels-in-release-mode.md +++ b/MAUI/Cartesian-Charts/display-tooltip-and-data-labels-in-release-mode.md @@ -2,14 +2,14 @@ layout: post title: Show tooltip and datalabels in release mode | Syncfusion description: Learn here all about displaying tooltip and datalabels in release mode in SfCartesianChart in Syncfusion® .NET MAUI Chart (SfCartesianChart) control. -platform: maui-toolkit +platform: maui control: SfCartesianChart documentation: ug keywords: .NET MAUI chart tooltip, .NET MAUI chart data label, TooltipInfo Item binding, ChartDataLabel Item binding, Release mode trimming, Preserve attribute MAUI. --- # Display tooltip and data labels in release mode -In [SfCartesianChart](https://help.syncfusion.com/cr/maui-toolkit/Syncfusion.Maui.Toolkit.Charts.SfCartesianChart.html), tooltip and data label templates do not bind directly to your business model because these elements are generated by the chart at runtime and often represent calculated points. As a result, the chart provides its own binding context containing the necessary metadata. For tooltips this context is [TooltipInfo](https://help.syncfusion.com/cr/maui-toolkit/Syncfusion.Maui.Toolkit.Charts.TooltipInfo.html), and for data labels it is [ChartDataLabel](https://help.syncfusion.com/cr/maui-toolkit/Syncfusion.Maui.Toolkit.Charts.ChartDataLabel.html). Both expose an Item property that points back to your original business model when a direct mapping exists. With .NET 9 compiled bindings, set **x:DataType="chart:TooltipInfo"** for tooltip templates and **x:DataType="chart:ChartDataLabel"** for data label templates, then bind through Item. If you need a specific field from your model, bind to Item and use a value converter to extract the desired property. +In [SfCartesianChart](https://help.syncfusion.com/cr/maui/Syncfusion.Maui.Charts.SfCartesianChart.html), tooltip and data label templates do not bind directly to your business model because these elements are generated by the chart at runtime and often represent calculated points. As a result, the chart provides its own binding context containing the necessary metadata. For tooltips this context is [TooltipInfo]https://help.syncfusion.com/cr/maui/Syncfusion.Maui.Charts.TooltipInfo.html), and for data labels it is [ChartDataLabel](https://help.syncfusion.com/cr/maui/Syncfusion.Maui.Charts.ChartDataLabel.html). Both expose an Item property that points back to your original business model when a direct mapping exists. With .NET 9 compiled bindings, set **x:DataType="chart:TooltipInfo"** for tooltip templates and **x:DataType="chart:ChartDataLabel"** for data label templates, then bind through Item. If you need a specific field from your model, bind to Item and use a value converter to extract the desired property. `Ahead-of-Time (AOT)` compilation converts Intermediate Language to native code at build time to improve startup and runtime performance. AOT commonly ships together with linker trimming in Release configurations to reduce app size. From b352962a7fc3574592b9e844243d6af245688e5d Mon Sep 17 00:00:00 2001 From: Jayaleshwari N <41980615+jayaleshwari@users.noreply.github.com> Date: Fri, 12 Dec 2025 17:22:31 +0530 Subject: [PATCH 3/3] Add prompt card for Syncfusion MAUI AI AssistView Unknown tag 'endpromptcards' in maui/AI-Coding-Assistant/prompt-library.md --- MAUI/AI-Coding-Assistant/prompt-library.md | 1 + 1 file changed, 1 insertion(+) diff --git a/MAUI/AI-Coding-Assistant/prompt-library.md b/MAUI/AI-Coding-Assistant/prompt-library.md index f2265101c5..74dcbe9caa 100644 --- a/MAUI/AI-Coding-Assistant/prompt-library.md +++ b/MAUI/AI-Coding-Assistant/prompt-library.md @@ -247,6 +247,7 @@ The Syncfusion .NET MAUI ListView provides a high-performance, flexible list wit The Syncfusion .NET MAUI AI AssistView provides a ready-made conversational UI for integrating LLMs with features like message list, input box, suggestions, attachments, and tool/action invocation. +{% promptcards %} {% promptcard Messages %} #SyncfusionMAUIAssistant Bind AssistView to a message collection with system, user, and pre load conversation history. {% endpromptcard %}