I want to drag&drop image on website to Canvas on Xaml. But it is not acceptable, because dragged data is not image data but html data. So I try to get dragover thumbnail image. But I don't know how to access dragover thumbnail image.
How can I access dragover thumbnail image. I want to know those code. C#.
--Xaml--
<WebView x:Name="WebView" Source="https://google.com" ScriptNotify="Notify" NavigationCompleted="Completed" ></WebView>
<Canvas x:Name="Board" AllowDrop="True" DragOver="dragOver" Drop="drop" Background="White"></Canvas>
--C#--
private void dragOver(object sender, DragEventArgs e)
{
e.AcceptedOperation = DataPackageOperation.Copy;
e.DragUIOverride.IsContentVisible = true; // I want to get this content data. To bitmap.
}
You can use the following code to get the BitmapImage
from DragEventArgs
if (e.DataView.Contains(StandardDataFormats.Bitmap))
{
try
{
var a = await e.DataView.GetBitmapAsync();
var c = await a.OpenReadAsync();
BitmapImage b = new BitmapImage();
b.SetSource(c);
MyCanvasImage.Source = b;
}
catch (Exception) { }
}
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.