protected override void OnDragOver(DragEventArgs e)
{
base.OnDragOver(e);
e.Effects = DragDropEffects.None;
if (e.Data.GetDataPresent(DataFormats.StringFormat))
{
string dataString = (string)e.Data.GetData(DataFormats.StringFormat);
if (ColorHelper.CanParseColor(dataString))
{
e.Effects = DragDropEffects.Copy;
}
}
e.Handled = true;
}
private void PasteCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
{
bool hasText = Clipboard.ContainsText();
if (hasText)
{
string text = Clipboard.GetText();
bool canParse = ColorHelper.CanParseColor(text);
if (canParse)
{
e.CanExecute = true;
e.Handled = true;
return;
}
}
e.CanExecute = false;
e.Handled = true;
}
