private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            int             selectedRow = e.RowIndex;
            DataGridViewRow row         = dataGridView1.Rows[selectedRow];

            userId = row.Cells[0].Value.ToString();
            userImageCollection = db.getUserImage(userId);
            if (userImageCollection.Length > 0)
            {
                imageCollectionPosition = 0;
                imageBox7.Image         = userImageCollection[imageCollectionPosition];
                if (userImageCollection.Length > 1)
                {
                    button4.Enabled = true;
                    button3.Enabled = true;
                    button2.Enabled = true;
                    button1.Enabled = false;
                    label1.Text     = "1";
                    label3.Text     = userImageCollection.Length.ToString();
                }
                else
                {
                    button4.Enabled = true;
                    button3.Enabled = true;
                    button1.Enabled = false;
                    button2.Enabled = false;
                    label1.Text     = "1";
                    label3.Text     = "1";
                }
            }
        }