Как мы можем зашифровать файлы при проверке выбранного файла в представлении datagrid?

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Hi ,

Any one can give me a example how can we encyrpt selcted files in gridview and save them in certain folder, i have tried below code but cant encrypt selected file.

What I have tried:

<pre>void BtnUploadClick(object sender, EventArgs e)
        {
            //Sample on Sun 01.12.2014 At 09.13 AM
            string locationToCreateFolder = "E://";
            string folderName = "Upload";
            string date = DateTime.Now.ToString("ddd MM.dd.yyyy");
            string time = DateTime.Now.ToString("HH.mm tt");
            string format = "{0} on {1} At {2}";
            folderName = string.Format(format, textBox1.Text, date, time);
            Directory.CreateDirectory(locationToCreateFolder + "Upload");
            MessageBox.Show("done");
            int CheckBoxRowCounter = 0;
            // Encrypt_and_decrypt.AES a  = new AES();
            for (int i = 0; i < dataGridView1.RowCount; i++)
            {
                if (Convert.ToBoolean(dataGridView1.Rows[i].Cells[0].Value))
                {
                    CheckBoxRowCounter++;
                }
            }
             if (CheckBoxRowCounter > 0)
            {
                if (folderBrowserDlg.ShowDialog() == DialogResult.OK)
                {
                    String folderPath = folderBrowserDlg.SelectedPath;
                    for (int i = 0; i < dataGridView1.RowCount; i++)
                    {
                        if (Convert.ToBoolean(dataGridView1.Rows[i].Cells[0].Value))
                        {
                            string SourceFilePath = dataGridView1.Rows[i].Cells[1].Value.ToString();
                            string SourceFileName = new System.IO.FileInfo(SourceFilePath).Name;
                            string TargetFilePath = folderPath + @"\" + SourceFileName;
                            if (!System.IO.File.Exists(TargetFilePath))
                            {
                                if (System.IO.File.Exists(SourceFilePath))
                                {
                                    System.IO.File.Move(SourceFilePath, TargetFilePath);
                                }
                            }
                            //string Hidkey = dataGridView1[0,2].Value.ToString();
                        //    dataGridView1[0,1].Value= a.EncryptFile("E:\\ on Fri 05.11.2018 At 08.59 AM","E:\\encrypt","Hidkey");
                        }
                    }
                    MessageBox.Show("Selected Files Moved.Refreshing Grid...");
                    FillGridView();
                }
            }

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