如何将ResourceDictionary XAML样式转换为C#

using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

public static Style ConvertResourceDictionaryToStyle(ResourceDictionary resourceDictionary, string styleKey)
{
    if (resourceDictionary.Contains(styleKey))
    {
        var style = resourceDictionary[styleKey] as Style;
        if (style != null)
        {
            return style;
        }
    }
    return null;
}

var convertedStyle = StyleConverter.ConvertResourceDictionaryToStyle(resourceDictionary, "MyStyleKey");