private void _uploadTrustSignatureListView_ContextMenuOpening(object sender, ContextMenuEventArgs e)
{
if (_uploadLinkListView.SelectedIndex == -1)
{
_uploadTrustSignatureListViewDeleteMenuItem.IsEnabled = false;
_uploadTrustSignatureListViewCutMenuItem.IsEnabled = false;
_uploadTrustSignatureListViewCopyMenuItem.IsEnabled = false;
_uploadTrustSignatureListViewPasteMenuItem.IsEnabled = false;
}
else
{
var selectItems = _uploadTrustSignatureListView.SelectedItems;
_uploadTrustSignatureListViewDeleteMenuItem.IsEnabled = (selectItems != null && selectItems.Count > 0);
_uploadTrustSignatureListViewCutMenuItem.IsEnabled = (selectItems != null && selectItems.Count > 0);
_uploadTrustSignatureListViewCopyMenuItem.IsEnabled = (selectItems != null && selectItems.Count > 0);
{
bool flag = false;
if (Clipboard.ContainsText())
{
var line = Clipboard.GetText().Split('\r', '\n');
flag = Signature.Check(line[0]);
}
_uploadTrustSignatureListViewPasteMenuItem.IsEnabled = flag;
}
}
}