Delete key behavior and blank paste bug

[Syouji Matsumoto]

In version 11.x:
- Pressing the Delete key does not clear the cell.
- Copying and pasting blank cells is not possible (cannot paste a blank).

This works correctly in version 10.x.
As this involves basic functionality and appears to be a bug, please fix it.

[paramvir]

Thank you for bringing this to our attention. We have tested these scenarios in the latest version but are unable to reproduce the issues as described. You can verify the standard behavior in our live demo here: https://paramquery.com/pro/demos/copy_paste

Here is how these features are designed to work in version 11.x:

Delete Key Functionality: The Delete key will clear the cell or selection as long as the grid cells have active focus. If the focus is lost or moved away from the selection, the keypress will not trigger the clear action. This is the intended behavior to prevent accidental data erasure.

Copy and Pasting Blank Cells: Copying and pasting a single, isolated blank cell is not supported by design. However, copying and pasting a range of multiple cells that contains blank cells works perfectly.

If you are seeing different behavior even when the selection has active focus, please share a minimal reproducible example or your grid configuration so we can investigate it further.

[Syouji Matsumoto]

Thank you for your reply.

# Regarding clearing with the Delete key:
This issue can occur with pull-down cells.

ver10: Clears the value
https://paramquery.com/pro/demos10/cascade_select

ver11: Does not clear the value
https://paramquery.com/pro/demos/cascade_select

# Regarding pasting a blank value
ver10:
https://paramquery.com/pro/demos10/editing_custom
For example, in the "OrderID" column:
- Pasting a blank value clears the cell, whether it is a single cell or multiple rows.

ver11:
https://paramquery.com/pro/demos/editing_custom
For example, in the "OrderID" column:
- Pasting a blank value does not clear the cell, whether it is a single cell or multiple rows.

[paramvir]

Thank you for reporting issue, am able to reproduce it and looking into it.