The Clipboard class provides static copy and paste methods that can be used by controls to customize the clipboard content during clipboard operations.

For example, the code below shows how a control could intercept the clipboard shortcut keys and provide custom clipboard handling:

rootElement.addEventListener('keydown', (e: KeyboardEvent) {

    // copy: ctrl+c or ctrl+Insert
    if (e.ctrlKey && (e.keyCode == 67 || e.keyCode == 45)) {
        let text = this.getClipString();
        Clipboard.copy(text);
        return;
    }

    // paste: ctrl+v or shift+Insert
    if ((e.ctrlKey && e.keyCode == 86) || (e.shiftKey && e.keyCode == 45)) {
        Clipboard.paste(text => {
            this.setClipString(text);
        });
        return;
     }
});

The example below shows how you can customize the behavior of the clipboard paste command when the target is a FlexGrid control:

Example