resourcemanager.md

-api-id	-api-type
T:Windows.ApplicationModel.Resources.Core.ResourceManager	winrt class

Windows.ApplicationModel.Resources.Core.ResourceManager

-description

Provides access to application resource maps and more advanced resource functionality.

-remarks

-examples

This example is based on scenario 10 of the Application resources and localization sample. See the sample for the more complete solution.

private void SearchMultipleResourceIds(string language, string scale, string contrast, string homeRegion)
{
    // use a cloned context for this scenario so that qualifier values set
    // in this scenario don't impact behavior in other scenarios that
    // use a default context for the view (crossover effects between
    // the scenarios will not be expected)
    ResourceContext context = ResourceContext.GetForCurrentView().Clone();
    context.QualifierValues["language"] = language;
    context.QualifierValues["scale"] = scale;
    context.QualifierValues["contrast"] = contrast;
    context.QualifierValues["homeregion"] = homeRegion;
    var resourceIds = new string[] { "LanguageOnly", "ScaleOnly", "ContrastOnly", "HomeRegionOnly", "MultiDimensional" }
    var dimensionMap = ResourceManager.Current.MainResourceMap.GetSubtree("dimensions");

    foreach (var id in resourceIds)
    {
        NamedResource namedResource;
        if (dimensionMap.TryGetValue(id, out namedResource))
        {
            var resourceCandidates = namedResource.ResolveAll(context);
            string candidateInfo = ShowCandidates(id, resourceCandidates);
        }
    }
    Console.WriteLine(candidateInfo);
}

private string ShowCandidates(string resourceId, IReadOnlyList<ResourceCandidate> resourceCandidates)
{
    // print 'resourceId', 'found value', 'qualifier info', 'matching condition'
    string outText = "resourceId: dimensions\\" + resourceId + "\r\n";
    int i = 0;

    foreach (var candidate in resourceCandidates)
    {
        var value = candidate.ValueAsString;
        outText += "    Candidate " + i.ToString() + ":" + value + "\r\n";

        foreach (var qualifier in candidate.Qualifiers)
        {
            var qualifierName = qualifier.QualifierName;
            var qualifierValue = qualifier.QualifierValue;
            outText += "        Qualifier: " + qualifierName + ": " + qualifierValue + "\r\n";
            outText += "        Matching: IsMatch (" + qualifier.IsMatch.ToString() + ")  " + "IsDefault (" + qualifier.IsDefault.ToString() + ")" + "\r\n";
        }
        i++;
    }

    return outText + "\r\n";
}

void SDKTemplate::Scenario10::Scenario10Button_Show_Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e)
{
    Button^ b = safe_cast<Button^>(sender);
    if (b != nullptr)
    {
        // use a cloned context for this scenario so that qualifier values set
        // in this scenario don't impact behavior in other scenarios that
        // use a default context for the view (crossover effects between
        // the scenarios will not be expected)
        auto context = ResourceContext::GetForCurrentView()->Clone();

        auto selectedLanguage = Scenario10ComboBox_Language->SelectedValue;
        auto selectedScale = Scenario10ComboBox_Scale->SelectedValue;
        auto selectedContrast = Scenario10ComboBox_Contrast->SelectedValue;
        auto selectedHomeRegion = Scenario10ComboBox_HomeRegion->SelectedValue;

        if (selectedLanguage != nullptr)
        {
            context->QualifierValues->Insert("language", selectedLanguage->ToString());
        }
        if (selectedScale != nullptr)
        {
            context->QualifierValues->Insert("scale", selectedScale->ToString());
        }
        if (selectedContrast != nullptr)
        {
            context->QualifierValues->Insert("contrast", selectedContrast->ToString());
        }
        if (selectedHomeRegion != nullptr)
        {
            context->QualifierValues->Insert("homeregion", selectedHomeRegion->ToString());
        }

        Platform::Collections::Vector<String^>^ resourceIds = ref new Platform::Collections::Vector<String^>();
        resourceIds->Append("LanguageOnly");
        resourceIds->Append("ScaleOnly");
        resourceIds->Append("ContrastOnly");
        resourceIds->Append("HomeRegionOnly");
        resourceIds->Append("MultiDimensional");
        Scenario10_SearchMultipleResourceIds(context, resourceIds);
    }
}

void SDKTemplate::Scenario10::Scenario10_SearchMultipleResourceIds(ResourceContext^ context, Platform::Collections::Vector<String^>^ resourceIds)
{
    Scenario10TextBlock->Text = "";
    auto dimensionMap = ResourceManager::Current->MainResourceMap->GetSubtree("dimensions");

    for (unsigned int it = 0; it < resourceIds->Size; it++)
    {
        String^ id = resourceIds->GetAt(it);
        NamedResource^ namedResource = dimensionMap->Lookup(id);
        if (namedResource)
        {
            auto resourceCandidates = namedResource->ResolveAll(context);
            Scenario10_ShowCandidates(resourceIds->GetAt(it), resourceCandidates);
        }
    }
}

void SDKTemplate::Scenario10::Scenario10_ShowCandidates(String^ resourceId, Windows::Foundation::Collections::IVectorView<ResourceCandidate^>^ resourceCandidates)
{
    // print 'resourceId', 'found value', 'qualifier info', 'matching condition'
    String^ outText = "resourceId: dimensions\\" + resourceId + "\r\n";

    for(unsigned int i =0; i < resourceCandidates->Size; i++)
    {
        ResourceCandidate^ candidate = resourceCandidates->GetAt(i);
        auto value = candidate->ValueAsString;

        outText += "    Candidate " + i.ToString() + ":" + value + "\r\n";
        for (unsigned int j = 0; j < candidate->Qualifiers->Size; j++)
        {
            auto qualifier = candidate->Qualifiers->GetAt(j);
            auto qualifierName = qualifier->QualifierName;
            auto qualifierValue = qualifier->QualifierValue;
            outText += "        Qualifier: " + qualifierName + ": " + qualifierValue + "\r\n";
            outText += "        Matching: IsMatch (" + qualifier->IsMatch.ToString() + ")  " + "IsDefault (" + qualifier->IsDefault.ToString() + ")" + "\r\n";
        }
    }

    this->Scenario10TextBlock->Text += outText + "\r\n";

}

-see-also

App resources and the Resource Management System, Application resources and localization sample