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-
-
-[](https://supportcenter.devexpress.com/ticket/details/T534664)
-[](https://docs.devexpress.com/GeneralInformation/403183)
-[](#does-this-example-address-your-development-requirementsobjectives)
-
-
-*Files to look at*:
-
-* [MainWindow.xaml](./CS/WpfApplication25/MainWindow.xaml) (VB: [MainWindow.xaml](./VB/WpfApplication25/MainWindow.xaml))
-* [MainWindow.xaml.cs](./CS/WpfApplication25/MainWindow.xaml.cs) (VB: [MainWindow.xaml.vb](./VB/WpfApplication25/MainWindow.xaml.vb))
-* [ViewModel.cs](./CS/WpfApplication25/ViewModel.cs) (VB: [ViewModel.vb](./VB/WpfApplication25/ViewModel.vb))
-
-# WPF Grid - Display scrollbar annotations
-
-
-This example demonstrates how to use Scrollbar Annotations with GridControl. Here you can learn how to use built-in annotations types and also how to create your own custom annotations.
-
-
-
-
-
+
+
+[](https://supportcenter.devexpress.com/ticket/details/T534664)
+[](https://docs.devexpress.com/GeneralInformation/403183)
+[](#does-this-example-address-your-development-requirementsobjectives)
+
+
+# WPF Grid – Display Scrollbar Annotations
+
+This example introduces [Scrollbar Annotations](https://docs.devexpress.com/WPF/18068/controls-and-libraries/data-grid/paging-and-scrolling/scrollbar-annotations) in the WPF [`GridControl`](https://docs.devexpress.com/WPF/DevExpress.Xpf.Grid.GridControl). When the grid loads, its vertical scrollbar displays annotations that indicate the location of search results and selected cells. These visual markers allow users to quickly navigate to relevant data.
+
+
+
+## Implementation Details
+
+The example displays a side panel that lists annotation modes supported by the `GridControl`. When a user selects a mode, the bound [ScrollBarAnnotationMode](https://docs.devexpress.com/WPF/DevExpress.Xpf.Grid.TableView.ScrollBarAnnotationMode) property updates accordingly:
+
+```xaml
+
+```
+
+The `GridControl` can display annotations for the following items:
+
+* Focused and selected rows
+* Invalid rows and cells
+* Search results
+
+To define additional annotations based on custom rules, handle the [`ScrollBarCustomRowAnnotation`](https://docs.devexpress.com/WPF/DevExpress.Xpf.Grid.TableView.ScrollBarCustomRowAnnotation) event. In this example, the event handler checks the `Number` property of a row’s data object and displays a custom annotation if the value falls within certain ranges:
+
+```csharp
+void MyScrollBarCustomRowAnnotationEventHandler(object sender, ScrollBarCustomRowAnnotationEventArgs e) {
+ if (e.Row is not TestData data) return;
+ int number = data.Number;
+ if (number > 10 && number < 15)
+ ShowCustomScrollAnnotation(e, Brushes.LightCoral);
+ if (number > 2 && number < 4)
+ ShowCustomScrollAnnotation(e, Brushes.Green);
+}
+
+void ShowCustomScrollAnnotation(ScrollBarCustomRowAnnotationEventArgs e, SolidColorBrush brush) {
+ e.ScrollBarAnnotationInfo = new ScrollBarAnnotationInfo() {
+ Alignment = ScrollBarAnnotationAlignment.Right,
+ Brush = brush,
+ MinHeight = 3,
+ Width = 10
+ };
+}
+```
+
+## Files to Review
+
+* [MainWindow.xaml](./CS/WpfApplication25/MainWindow.xaml) (VB: [MainWindow.xaml](./VB/WpfApplication25/MainWindow.xaml))
+* [MainWindow.xaml.cs](./CS/WpfApplication25/MainWindow.xaml.cs) (VB: [MainWindow.xaml.vb](./VB/WpfApplication25/MainWindow.xaml.vb))
+* [ViewModel.cs](./CS/WpfApplication25/ViewModel.cs) (VB: [ViewModel.vb](./VB/WpfApplication25/ViewModel.vb))
+
+## Documentation
+
+* [GridControl](https://docs.devexpress.com/WPF/DevExpress.Xpf.Grid.GridControl)
+* [TableView](https://docs.devexpress.com/WPF/DevExpress.Xpf.Grid.TableView)
+* [ListBoxEdit](https://docs.devexpress.com/WPF/DevExpress.Xpf.Editors.ListBoxEdit)
+* [ScrollBarAnnotationInfo](https://docs.devexpress.com/WPF/DevExpress.Xpf.Grid.ScrollBarAnnotationInfo)
+* [Scrollbar Annotations](https://documentation.devexpress.com/WPF/18068/Controls-and-Libraries/Data-Grid/Data-Scrolling/Scrollbar-Annotations)
+
+## More Examples
+
+* [WPF Data Grid – Specify Custom Content for Column Chooser Headers](https://github.com/DevExpress-Examples/wpf-data-grid-custom-content-for-column-chooser-headers)
+* [WPF Data Grid – Handle Drag and Drop Operations](https://github.com/DevExpress-Examples/wpf-grid-handle-drag-and-drop)
+* [WPF Data Grid – Bind to Dynamic Data](https://github.com/DevExpress-Examples/wpf-bind-gridcontrol-to-dynamic-data)
+
## Does this example address your development requirements/objectives?
[
](https://www.devexpress.com/support/examples/survey.xml?utm_source=github&utm_campaign=wpf-grid-scrollbar-annotations&~~~was_helpful=yes) [
](https://www.devexpress.com/support/examples/survey.xml?utm_source=github&utm_campaign=wpf-grid-scrollbar-annotations&~~~was_helpful=no)
-(you will be redirected to DevExpress.com to submit your response)
-
+(you will be redirected to DevExpress.com to submit your response)
+