ErrLookup › lepoco/wpfui
lepoco/wpfui
WPF UI provides the Fluent experience in your known and loved WPF framework. Intuitive design, themes, navigation and new immersive controls. All natively and effortlessly. · C# · 654 source files
Analyzed at ffebacd610 on 2026-08-13. 51 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| Unable to find the base directory of the application. | exception | critical | startup, configuration, generic-host, wpf |
| ExceptionEnumToBooleanConverterParameterMustBeAnEnumName | exception | error | xaml, binding, converter, enum |
| ExceptionEnumToBooleanConverterValueMustBeAnEnum | exception | error | xaml, binding, converter, enum |
| Unable to determine the window source. | exception | error | hwnd, interop, window, wpf |
| Could not get window handle. | exception | error | hwnd, interop, window, lifecycle |
| Window handle cannot be empty | exception | warning | dead-code, hwnd, maintenance |
| You cannot unwatch a window that is not yet loaded. | exception | error | hwnd, lifecycle, window, unwatch |
| Cannot set ContentPresenter: a ContentDialogHost host has al | exception | error | content-dialog, host, api-migration, obsolete |
| Cannot set ContentDialogHost: a legacy ContentPresenter host | exception | error | content-dialog, host, api-migration, obsolete |
| The DialogHost was never set. | exception | error | content-dialog, host, showasync, configuration |
| The DialogHost is not the same as the one that was previousl | exception | error | content-dialog, host, showasync, reference-mismatch |
| Item content is null | exception | error | breadcrumbbar, xaml, command, null-argument |
| IsFocusInsideDialog can only be called from the UI thread. | exception | error | content-dialog, thread-affinity, dispatcher, focus |
| Cannot set DialogHost when DialogHostEx is already set. | exception | error | content-dialog, host, api-migration, obsolete |
| Cannot change DialogHost while the dialog is being shown. | exception | error | content-dialog, host, showasync, state-mutation |
| Cannot set DialogHostEx when DialogHost is already set. | exception | error | content-dialog, host, api-migration, obsolete |
| Cannot change DialogHostEx while the dialog is being shown. | exception | error | wpf, contentdialog, state-violation, ui-thread |
| DialogHost was not set | exception | error | wpf, contentdialog, configuration, precondition |
| Only one ContentDialogHost instance is allowed per Window. | exception | error | wpf, contentdialog, configuration, singleton |
| Cannot apply backdrop effect if ExtendsContentIntoTitleBar i | exception | error | wpf, fluentwindow, backdrop, configuration, windows-11 |
| The `_desiredWidth` field was not found. | exception | critical | wpf, gridview, reflection, version-compatibility, internals |
| The `UpdateActualWidth` method was not found. | exception | critical | wpf, gridview, reflection, version-compatibility, internals |
| Failed to get the current `_desiredWidth`. | exception | error | wpf, gridview, reflection, defensive-guard, lifecycle |
| IconElement should have only 1 child | exception | error | wpf, iconelement, visual-tree, subclass-contract |
| Expected either '{typeof(IconSourceElement)}' or '{typeof(Ic | exception | error | wpf, iconelement, coerce, type-mismatch, xaml |
| Use {nameof(CreateIconElement)} | exception | error | wpf, iconelement, misuse, visual-tree, xaml |
| Use {nameof(ShowDialogAsync)} instead | exception | error | wpf, messagebox, api-misuse, obsolete |
| Use {nameof(Close)} with MessageBoxResult instead | exception | error | wpf, messagebox, api-misuse, obsolete, lifecycle |
| Unsupported action: {e.Action} | exception | warning | wpf, navigationview, defensive-guard, exhaustive-switch |
| The {nameof(viewItem)}.{nameof(viewItem.TargetPageType)} pro | exception | error | wpf, navigationview, configuration, precondition |
| {nameof(_serviceProvider)}.{nameof(_serviceProvider.GetServi | exception | error | wpf, navigationview, dependency-injection, configuration |
| {nameof(_pageService)}.{nameof(_pageService.GetPage)} return | exception | error | wpf, navigationview, page-provider, configuration |
| Unable to get or create instance of {viewItem.TargetPageType | exception | error | wpf, navigationview, reflection, activator, configuration |
| {nameof(_serviceProvider.GetService)} returned null | exception | error | wpf, navigationview, dependency-injection, cache, configuration |
| {nameof(_pageService.GetPage)} returned null | exception | error | wpf, navigationview, page-provider, cache, configuration |
| Failed to create instance of the page | exception | error | navigation, reflection, instantiation, wpf |
| PageType of the ${typeof(INavigationViewItem)} must be deriv | exception | error | navigation, type-validation, activator, wpf |
| The {pageType} page does not have a parameterless constructo | exception | error | dependency-injection, navigation, activator, wpf |
| The {pageType} page does not have a parameterless constructo | exception | error | navigation, reflection, activator, wpf |
| {nameof(NumberFormatter)} must implement {typeof(INumberPars | exception | error | numberbox, validation, formatter, wpf |
| Element {nameof(TemplateElementToggleButton)} of type {typeo | exception | error | template-parts, splitbutton, control-template, wpf |
| Window is null | exception | error | titlebar, window, visual-tree, wpf |
| dpiScale is not initialized. | exception | error | titlebar, dpi, race-condition, wpf |
| Template part '{name}' is not found or is not of type {typeo | exception | error | template-parts, titlebar, control-template, wpf |
| Unsupported button type: {buttonType}. | exception | error | titlebar, enum, argument-out-of-range, wpf |
| The argument {nameof(index)} must be >= 0 and < the number o | exception | error | virtualization, wrap-panel, argument-out-of-range, wpf |
| {nameof(value)} is not type: {typeof(TEnum)} | exception | error | converter, enum, binding, wpf |
| {nameof(parameter)} is not type: {typeof(TEnum)} | exception | error | converter, enum, converterparameter, wpf |
| The SnackbarPresenter was never set | exception | error | snackbar, initialization, service, wpf |
| {typeof(TPage)} page not found. | exception | error | navigation, page-provider, navigation-exception, wpf |
| Could not determine the working directory. | exception | error | font-mapper, path, single-file, tooling |