RichTextBox简单实现，消息时间为颜色显示

 

private void recv_msg_Click(object sender, EventArgs e)
        {
            RecvText.SelectionStart = RecvText.Text.Length;
            RecvText.SelectionColor = Color.Blue;
            RecvText.AppendText(DateTime.Now.ToString() + "\r\n");
            RecvText.AppendText("how are you\r");
        }

private void send_msg_Click(object sender, EventArgs e)
        {
            if(SendText.Text!="")
            {
                RecvText.SelectionStart = RecvText.Text.Length;
                RecvText.SelectionColor = Color.Red;
                RecvText.AppendText(DateTime.Now.ToString() + "\r\n");
                RecvText.AppendText(SendText.Text+"\r");
            }
        }

 

非常简单，只需要在插入消息时间之前将光标移动到RichTextBox末尾，并设置选中内容的颜色为所需颜色，实际上添加的新行自动成为了选中内容SelectedText

 

2，NotifyIcon闪烁

     需要2张ICO图片，16*16 一张为显示的托盘图标，另一张为透明的空图标，添加到资源中

     添加一个Timer 间隔 500毫秒，Timer_Tick时间中变换NotifyIcon控件的ICO属性图标

    int ico_index = 0;

        private void NotofyTimer_Tick(object sender, EventArgs e)
        {
            Icon ico = (ico_index==1) ? Properties.Resources.ico0 : Properties.Resources.ico1;
            ico_index = (ico_index == 1) ? 0 : 1;
            MainNotify.Icon=ico;
        }

//双击闪烁图标
private void MainNotify_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            NotofyTimer.Stop();
            MainNotify.Icon = Properties.Resources.ico0;
            using(frmMessage frm=new frmMessage())
            {
                frm.ShowDialog();
            }
        }
//开始Timer模拟闪烁图标
        private void START_TIMER_MENU_Click(object sender, EventArgs e)
        {
            NotofyTimer.Start();
        }

 

  为了消除程序关闭后托盘图标，在窗体Closeing时间中执行

 private void frmMain_FormClosing(object sender, FormClosingEventArgs e)
        {
            MainNotify.Dispose();
        }

 

 

记录2个小技巧