Window becomes inactive after DialogHost.Show() #3497
Description
Bug explanation
I'm trying to make a preloader using DialogHost (I need to display a loading indicator and lock the application while the data is being loaded)
However, when I call DialogHost.Show(), the application window loses focus
5.0.1-ci571:
bandicam.2024-03-16.22-44-17-543.mp4
if you click on a dialog, the window will become active again along with the dialog.
so they are not mutually exclusive
In my past project I used version 4.6.1 and the window did not lose focus when DialogHost was opened
I tried different versions in the current project:
- 4.10.0-ci317 everything works perfectly
- 5.0.0-ci321 this bug appears
4.10.0-ci317:
bandicam.2024-03-16.23-30-59-746.mp4
How can this be fixed without downgrading to an older version?
My code:
PreloaderDialog
<UserControl x:Class="Client.View.Dialogs.PreloaderDialog"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d">
<ProgressBar Width="24"
Height="24"
Margin="16"
IsIndeterminate="True"
Style="{StaticResource MaterialDesignCircularProgressBar}"
Value="33" />
</UserControl>MainWindow
<Window x:Class="Client.View.Windows.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
xmlns:controls="clr-namespace:Client.View.Controls"
mc:Ignorable="d"
Title="FriendSync"
Height="500" Width="540"
WindowStartupLocation="CenterScreen">
<materialDesign:DialogHost
Identifier="RootDialog"
DialogTheme="Inherit"
Loaded="DialogHost_OnInitialized">
...
</materialDesign:DialogHost>
</Window>Method to show preloader
public static async Task DoWithPreloader(Action action, string host = DIALOG_ROOT) {
var dialog = new PreloaderDialog();
if (DialogHost.IsDialogOpen(host)) {
try {
DialogHost.Close(host);
} catch (Exception) {
// ignored
}
}
await DialogHost.Show(dialog, host, new DialogOpenedEventHandler((_, args) => {
action();
try {
if (!args.Session.IsEnded) {
args.Session.Close(false);
}
} catch (Exception) {
// ignored
}
}));
}Calling code
DialogUtils.DoWithPreloader(() => {
// some time-consuming code
});Version
5.0.1-ci571