Silverlight Prism区域事件

public static class RegionManagerExtensions 
{
    public static void RemoveCurrentlyActiveAndThenAdd<TView>(
        this IRegionManager regionManager, 
        string regionName)
    {
        var region = regionManager.Regions[regionName];
        while (region.ActiveViews.Any()) 
            region.Remove(region.ActiveViews.First());

        var view = ServiceLocator.Current.GetInstance(typeof(TView));
        regionManager.Regions[regionName].Add(view);
    }
}

然后在代码中,您可以执行以下操作: regionManager.RemoveCurrentlyActiveAndThenAdd<MyView)("MyRegion");