C#文件加密方法汇总

            {
                pbDir.Maximum = max;
                pbDir.Value = value;
                lblProgressDir.Text = value * 100 / max + "%";
            };
            InvokeUtil.Invoke(this, invokeDelegate);
        }
        #endregion

        #region 显示密码
        private void cbxShowPwd_CheckedChanged(object sender, EventArgs e)
        {
            if (cbxShowPwd.Checked)
            {
                txtPwd.PasswordChar = default(char);
                txtPwdCfm.PasswordChar = default(char);
            }
            else
            {
                txtPwd.PasswordChar = '*';
                txtPwdCfm.PasswordChar = '*';
            }
        }
        #endregion

        #region 关闭窗体事件
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (progressPanel.Visible)
            {
                MessageBox.Show("正在处理文件，请等待…", "提示");
                e.Cancel = true;
            }