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我正嘗試在Windows應用商店應用中使用zxing條碼庫來生成條形碼圖像。 不顯示圖像。 以下哪項有問題?如何將WritableBitmap轉換爲BitmapImage
視圖模型:
public BarcodeViewModel(INavigationService navigationservice, IDataService dataservice) : base(navigationservice, dataservice)
{
var bh = new BarcodeHelper();
BarcodeImage = new Image() {Source = bh.GetBarcode("123123")};
}
public Image BarcodeImage { get { return barcodeimage; } set { barcodeimage = value; NotifyOfPropertyChange(() => BarcodeImage); } }
查看:
<Image Source="{Binding BarcodeImage}"/>
條碼類:
public WriteableBitmap GetBarcode(string barcodetext)
{
IBarcodeWriter writer = new BarcodeWriter { Format = BarcodeFormat.CODE_128 };
var result = writer.Write(barcodetext);
return result;
}