- 1 year ago
Is it possible to drag and drop data (String) from a ListView between other apps like Notepad in UWP C#
In Universal Windows Platform (UWP) apps written in C#, you can enable drag-and-drop functionality for data between controls within the same app, but not directly between your app and other applications like Notepad.
UWP apps run in a sandboxed environment, and direct inter-app communication through drag-and-drop is not supported. However, you can use the Windows clipboard to achieve a similar effect.
Here's how you can implement drag-and-drop within your UWP app:
Enable Drag and Drop within Your UWP App:
You can enable drag-and-drop functionality between controls (e.g., ListView) within your UWP app by using theDragStarting
event for the source control and theDrop
event for the target control.Copy Data to Clipboard on Drag:
When the user starts dragging an item from the ListView, you can copy the data (e.g., string) to the clipboard using theDataPackage
class.
csharpprivate void ListView_DragStarting(object sender, DragStartingEventArgs e)
{
var selectedText = ((YourDataType)ListView.SelectedItem).YourProperty;
e.Data.SetText(selectedText);
}
- Paste Data from Clipboard on Drop:
When the user drops the data on the target control (e.g., a TextBox in Notepad), you can handle the drop event and retrieve the data from the clipboard.
csharpprivate async void TextBox_Drop(object sender, DragEventArgs e)
{
var dataPackageView = e.DataView;
if (dataPackageView.Contains(StandardDataFormats.Text))
{
string droppedText = await dataPackageView.GetTextAsync();
// Do something with the dropped text (e.g., set TextBox.Text)
((TextBox)sender).Text = droppedText;
}
}
Remember that this approach only works within your UWP app and does not provide direct inter-app drag-and-drop functionality. To communicate between your UWP app and other applications like Notepad, you can use the Windows clipboard as demonstrated above.
For inter-app communication beyond the clipboard, you may need to explore other mechanisms like App Services, Share Contract, or the Windows App Communication APIs, depending on your specific use case.