private void btnAddTag_Click(object sender, EventArgs e)
        {
            // TODO: make a funcion to comport the next if statement and change the 'stringsToBeAdded' function
            if (cbbVideoTags.Text.Length == 0)
            {
                btnAddCategory.Enabled = false;
            }

            if (verifyStringToBeAdded(cbbVideoTags.Text,lbVideoTags.Items.Cast<String>()))
            {
                if(!cbbVideoTags.Items.Contains(cbbVideoTags.Text))
                {
                    DaoVideo daoVideo = new DaoVideo();
                    daoVideo.openConnection(this.GetType(), "sqlErrorHandler");
                    daoVideo.insertTag(cbbVideoTags.Text, this.GetType(), "sqlErrorHandler");
                    daoVideo.closeConnection();

                }
                lbVideoTags.Items.Add(cbbVideoTags.Text);
                cbbVideoTags.Text = "";
                loadItemsIntoCbbVideoTags();

            }
            cbbVideoTags.Focus();
        }