void ManageAbility()
{
if (hexBox1.ByteProvider == null)
{
miClose.Enabled = false;
miSave.Enabled = false;
miFind.Enabled = false;
miFindNext.Enabled = false;
}
else
{
miSave.Enabled = hexBox1.ByteProvider.HasChanges();
miClose.Enabled = true;
miFind.Enabled = true;
miFindNext.Enabled = true;
//miGoTo.Enabled = true;
}
ManageAbilityForCopyAndPaste();
}