private void button2_Click(object sender, EventArgs e) { string content = textBoxInput.Text.Trim(); if (content == "") { MessageBox.Show("内容不能为空", "提示"); } else { string time = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss", DateTimeFormatInfo.InvariantInfo); msg.Content = content; msg.Time = time; MessageDAO messageDAO = new MessageDAO(new Database(Program.constr)); if (messageDAO.InsertDataByUserAndMessage(Program.programUser, msg) == 1) { MessageBox.Show("发表成功!", "提示"); this.Close(); } else { MessageBox.Show("发表失败,请重新尝试!", "提示"); } } }