![]() If you experience a problem that isn't listed in this section or that can't be fixed by refreshing the page, please let us know by using the Report a Problem tool. If your sample data is not showing anything or fails to show the correct type, you can try refreshing the designer or closing and reopening the page. Implement the ConvertBack function that will convert your value back to the original type.Make sure that your Convert function can handle a scenario where the value is already your target type.However, you can get it to work by doing one or both of the following: Or, select the Binding failures button in the application toolbar. To open it, go to Debug > Windows > XAML Binding Failures. The Sample Data feature doesn't fully support converters or the IValueConverter interface. The XAML Binding Failures tool window is available during debugging. Sample data with the IValueConverter interface You can enable sample data by selecting your control, selecting the lightbulb, and then selecting Show Sample Data. Suggested Actions is a lightbulb on the designer that appears on the upper right when you select a control. To easily enable or disable sample data for a control from the designer, you can use the Suggested Actions feature. ![]() Sample data will be generated even if the bindings don't have a source yet. Sample data will be generated only for elements in data templates that use bindings. The feature will analyze the DataTemplate control and try to generate the appropriate data for it. ![]() The Sample Data feature works for ListBox, ListView, or DataGrid controls when you use data templates. To get started, add the following lines of code to the header of your XAML document if they aren't already present: xmlns:d=""Īfter you add the namespaces, you can use d:ItemsSource="". To learn more about design-time properties in XAML, see XAML design-time properties. Sample data needs the design-time namespace to work. As such, it's applied to the design-time version of the ItemsSource property d:ItemsSource. It appears only in the XAML designer, not in the running app. The Sample Data feature is for design-time visualization only. NET Framework, and then restart Visual Studio.
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