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Palette Settings not Working When Using RadSplashScreen

Environment

Product Version 2020.3.1020
Product RadSplashScreen for WPF

Description

The palette settings are not working if you apply them just before openning a RadSplashScreen in the App's OnStartup override. The following code snippet shows this setup.

protected override void OnStartup(StartupEventArgs e) 
{ 
    StyleManager.ApplicationTheme = new FluentTheme(); 
    // The following palette setting won't be applied neither in the RadSplashScreen or the Telerik controls in the main window. 
    FluentPalette.Palette.AccentColor = Colors.Red; 
 
    RadSplashScreenManager.Show(); 
    Thread.Sleep(5000); 
    // show window here 
    RadSplashScreenManager.Close(); 
} 

Solution

To resolve this, create a UserControl that hosts RadSplashScreen instance and apply the platte settings in the constructor of the UserControl. Then use the generic Show method in order to display it.

<UserControl x:Class="WpfApp1.SplashScreenUserControl" 
         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:local="clr-namespace:WpfApp1" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" 
         mc:Ignorable="d"  
         d:DesignHeight="450" d:DesignWidth="800"> 
    <UserControl.Resources> 
        <telerik:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" /> 
    </UserControl.Resources> 
    <telerik:RadSplashScreen Content="{Binding Content}" 
                             ImagePath="{Binding ImagePath}" 
                             ImageStretch="{Binding ImageStretch}" 
                             ImageWidth="{Binding ImageWidth}" 
                             ImageHeight="{Binding ImageHeight}" 
                             Footer="{Binding Footer}" 
                             Cursor="{Binding MouseCursor}" 
                             HorizontalContentAlignment="{Binding HorizontalContentAlignment}" 
                             HorizontalFooterAlignment="{Binding VerticalContentAlignment}" 
                             ProgressValue="{Binding ProgressValue}" 
                             MaxValue="{Binding MaxValue}" 
                             MinValue="{Binding MinValue}" 
                             IsIndeterminate="{Binding IsIndeterminate}" 
                             ProgressBarVisibility="{Binding IsProgressBarVisible, Converter={StaticResource BooleanToVisibilityConverter}}"/> 
</UserControl> 

public partial class SplashScreenUserControl : UserControl 
{ 
    public SplashScreenUserControl() 
    { 
        FluentPalette.Palette.AccentColor = Colors.Red; 
 
        InitializeComponent(); 
    } 
} 

protected override void OnStartup(StartupEventArgs e) 
{ 
    StyleManager.ApplicationTheme = new FluentTheme();       
    RadSplashScreenManager.Show<SplashScreenUserControl>(); 
    Thread.Sleep(5000); 
    // show window here 
    RadSplashScreenManager.Close(); 
} 

See Also

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