需要幫助將silverlight 4代碼翻譯爲silverlight 5

Question

我對silverlight非常新，正在Silverlight 5中調用一個名爲pivotviewer的新控件。 我想從現有的silverlight 4代碼中爲pivot查看器編寫doubleclick事件。

//double click event 
private void PivotViewerControl_ItemDoubleClicked(object sender, ItemEventArgs e) 
{ 
    PivotItem piv_item =PivotViewerControl1.GetItem(e.ItemId); 

    if (!string.IsNullOrWhiteSpace(piv_item.Href)) 
    { 
     PivotViewerControl1.CurrentItemId = e.ItemId; 
     OpenLink(piv_item.Href); 
    } 
    else 
    { 
     MessageBox.Show("No Web Page..."); 
    } 
} 

while this translation to silverlight 5 where pivotviewer is inbuilt control that following stub are created for the event。

private void PivotViewerControl_ItemDoubleClicked(object sender, PivotViewerItemDoubleClickEventArgs e) 
{ 
    //here the pivotviewercontrol has not getitem() in silverlight 5 so How do i get the currently selected 
    //Item on the double click 
} 

此外，我沒有得到頁面加載本身的圖像。我的頁面加載代碼如下

public MainPage() 
{ 
    InitializeComponent(); 
    PivotViewerControl.Loaded += PivotViewerControl_Loaded; 
} 

void PivotViewerControl_Loaded(object sender, RoutedEventArgs e) 
{ 
    _cxml = new CxmlCollectionSource(new Uri(MauritiusCollectionUri, UriKind.RelativeOrAbsolute)); 
    _cxml.StateChanged += _cxml_StateChanged; 
} 

void _cxml_StateChanged(object sender, CxmlCollectionStateChangedEventArgs e) 
{ 
    if (e.NewState == CxmlCollectionState.Loaded) 
    {       
     PivotViewerControl.PivotProperties = _cxml.ItemProperties.ToList(); 
     PivotViewerControl.ItemTemplates =_cxml.ItemTemplates; 
     PivotViewerControl.ItemsSource =_cxml.Items; 
    } 
} 

在運行時，我只是獲取圖像時，我排序或做一些搜索任何人都可以告訴我爲什麼？由於

Answer 1

喜的雙擊事件我有能夠翻譯如下

private void PivotViewerControl_ItemDoubleClicked(object sender, 
    PivotViewerItemDoubleClickEventArgs e) 
    { 
     PivotViewerItem piv_item = (PivotViewerItem)e.Item; 
     if(piv_item.Properties[0]!=null && piv_item.Properties[0].ToString()!=string.Empty) 
     { 
      OpenLink(piv_item.GetPropertyValue("Href")[0].ToString()); 
     } 
}