private void removeTag(object sender, EventArgs e)
        {
            checkFiles();
            if (comboBox3.Text != "")
            {
                string message = "Are you sure you want to REMOVE the column \"" + comboBox3.Text + "\" from the table?\n" +
                                 "All the data it contains will be deleted!";
                DialogResult result = MessageBox.Show(message, "Warning!", MessageBoxButtons.YesNo);
                if (result == DialogResult.Yes)
                {
                    client.Remove(comboBox3.Text);

                    form1Load(sender, e);
                    myUpdate();
                }
            }
        }