小賢的部落格

x:TypeArguments 可定義泛型，目前測試只有WPF可以 WinRT無法用於建構子 
 
 Xaml:

　　在MVVM的架構下，通常為了將事件及邏輯從View的code behind(.cs檔)中搬離，會使用到Command，不過Command的建置作業比傳統的事件較為麻煩，在參考Blend 的WPF資料繫結應用程式專案及Google之後，發現不需使用Command而且還能跟原本的事件相容，並且搬移到ViewModel中!
 
  
(1) 在Xaml中, ListView新增SelectionChanged事件

初始化
Car car = new Car();
car.root = new Root();
car.root.list = new List();
car.root.name = "海德格";
car.root.data = "救我";
for (int f = 0; f < 10; f++)
{
car.root.list.Add(f.ToString());
}

FrameworkElementFactory wrapElement = new FrameworkElementFactory(typeof(WrapPanel));
ItemsPanelTemplate itemPanelDataTemplate = new ItemsPanelTemplate(wrapElement);
itemPanelDataTemplate.VisualTree = wrapElement;


myListbox = new ListBox()
{
Opacity = 1,
Visibility = System.Windows.Visibility.Visible,
Height = double.NaN,
Width = double.NaN,
ItemsPanel = itemPanelDataTemplate,
Background = null,
Foreground = null,
BorderBrush = null,
VerticalAlignment = VerticalAlignment.Bottom,
HorizontalAlignment = HorizontalAlignment.Center,
Margin = new Thickness(0, 0, 30, 0)
};

解決事件重複觸發的問題:
 
private void Close_TouchDown(object sender, TouchEventArgs e)
{
e.Handled = true;
FrameworkElement element = sender as FrameworkElement;
element.CaptureTouch(e.TouchDevice);
}

private void button2_Click(object sender, RoutedEventArgs e)
{
WriteableBitmap writeableBitmap = new WriteableBitmap(bitmapImage);
int startTime = Environment.TickCount;

int width = bitmapImage.PixelWidth;
int height = bitmapImage.PixelHeight;
int stride = width * ((bitmapImage.Format.BitsPerPixel + 7) / 8);
byte[] pixel = new byte[height * stride];

writeableBitmap.CopyPixels(pixel, stride, 0);

Parallel.For(0, height, y =>
{
int x;

for (x = 0; x < stride; x++)
{
pixel[x + y * stride] = (byte)(255 - pixel[x + y * stride]);
}
});

writeableBitmap.WritePixels(new Int32Rect(0, 0, width, height), pixel, stride, 0);
image1.Source = writeableBitmap;

this.Title =(Environment.TickCount - startTime) + " ms";

//CroppedBitmap
}