private void fpSheetEditor1_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
MyCell fpSpread = fpSheetEditor1.FpSpread;
if (FpSpread.HitTest(e.X, e.Y).Type == HitTestType.Viewport)
{
contextMenuStrip1.Show(fpSpread, fpSpread.PointToClient(Cursor.Position));
}
}
}
