KeePass.Forms.KeyCreationForm.OnClickKeyFileCreate C# (CSharp) Method

        private void OnClickKeyFileCreate(object sender, EventArgs e)
        {
            SaveFileDialog sfd = UIUtil.CreateSaveFileDialog(KPRes.KeyFileCreate,
                UrlUtil.StripExtension(UrlUtil.GetFileName(m_ioInfo.Path)) + "." +
                AppDefs.FileExtension.KeyFile, UIUtil.CreateFileTypeFilter("key",
                KPRes.KeyFiles, true), 1, "key", true);

            if(sfd.ShowDialog() == DialogResult.OK)
            {
                EntropyForm dlg = new EntropyForm();
                if(dlg.ShowDialog() == DialogResult.OK)
                {
                    byte[] pbAdditionalEntropy = dlg.GeneratedEntropy;

                    try
                    {
                        KcpKeyFile.Create(sfd.FileName, pbAdditionalEntropy);

                        string str = sfd.FileName;
                        m_cmbKeyFile.Items.Add(str);
                        m_cmbKeyFile.SelectedIndex = m_cmbKeyFile.Items.Count - 1;
                    }
                    catch(Exception exKC)
                    {
                        MessageService.ShowWarning(exKC);
                    }
                }
                UIUtil.DestroyForm(dlg);
            }

            EnableUserControls();
        }