ApplicationThemeHelper.Preload(PreloadCategories[]) Method

Preloads theme resources for the specified controls.

Namespace: DevExpress.Xpf.Core

Assembly: DevExpress.Data.Desktop.v23.2.dll

NuGet Packages: DevExpress.Data.Desktop, DevExpress.ExpressApp.Win.Design

Declaration

C#

public static void Preload(
    params PreloadCategories[] preloadCategories
)

VB.NET

Public Shared Sub Preload(
    ParamArray preloadCategories As PreloadCategories()
)

Parameters

Name	Type	Description
preloadCategories	PreloadCategories[]	A collection of DevExpress WPF controls.

Remarks

The following code sample preloads Data Grid and Layout Control resources while the Splash Screen Manager is displayed:

App.xaml.cs

using DevExpress.Xpf.Core;
using System.Windows;

public partial class App : Application {
    static App() {
        SplashScreenManager.CreateThemed().ShowOnStartup();
        ApplicationThemeHelper.Preload(() => new MyControl().Populate());
    }
}

App.xaml.vb

Imports DevExpress.Xpf.Core
Imports System.Windows

Public Partial Class App
    Inherits Application

    Private Shared Sub New()
        SplashScreenManager.CreateThemed().ShowOnStartup()
        ApplicationThemeHelper.Preload(Function() New MyControl().Populate())
    End Sub
End Class

Refer to the following help topic for more information: Preload Theme Resources.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the Preload(PreloadCategories[]) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

wpf-synchronous-theme-preload-with-splashscreen/CS/ThemePreloadwithSplashscreen/App.xaml.cs#L13

    SplashScreenManager.CreateThemed().ShowOnStartup();
    ApplicationThemeHelper.Preload(PreloadCategories.Grid, PreloadCategories.LayoutControl);
}

VB.NET

wpf-synchronous-theme-preload-with-splashscreen/VB/ThemePreloadwithSplashscreen/App.xaml.vb#L17

    Call SplashScreenManager.CreateThemed().ShowOnStartup()
    Call ApplicationThemeHelper.Preload(PreloadCategories.Grid, PreloadCategories.LayoutControl)
End Sub