void BuildInContextMenuStrip_Opening(object sender, CancelEventArgs e) { _cutToolStripMenuItem.Enabled = this._hexBox.CanCut(); _copyToolStripMenuItem.Enabled = this._hexBox.CanCopy(); _pasteToolStripMenuItem.Enabled = this._hexBox.CanPaste(); _selectAllToolStripMenuItem.Enabled = this._hexBox.CanSelectAll(); } /// <summary>