void Cancel_Click(object sender, EventArgs e)
        {
            Close();
        }//取消设置

        void DateFormat_Changed(object sender, EventArgs e)
        {
            try
            {
                lblEgDateTimeFormat.Text = string.Format("(eg. {0})", DateTime.Now.ToString(txtDateTimeFormat.Text));
            }
            catch
            {
                lblEgDateTimeFormat.Text = "(eg. Invalid Format)";
            } }
        void txtDateTimeFormat_Leave(object sender, EventArgs e)
        {
            if (txtDateTimeFormat.Text.Trim().Length == 0)
                txtDateTimeFormat.Text = ApplicationSettings.DateTimeFormat;
        }//下拉菜单中的日期选择
    }}
3.1.6    启停模块
FTP服务器软件在系统托盘中设有启停操作，通过启动和停止操作来提供给用户方完整的服务。其界面如图3-8所示。在该模块中设计的主要部分有FTP和HTTP服务的启动和停止操作以及启用这两种服务的选择性设置。
 
图3-8 启动界面
代码如下：
// 启动方式
            //
            this.mnuShortcuts.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.mnuOpenHTTP,
            this.mnuOpenFTP,
            this.mnuShortcutSeparator1,
            this.mnuEnableHTTPService,
            this.mnuEnableFTPService});
            this.mnuShortcuts.Name = "mnuShortcuts";
            this.mnuShortcuts.Size = new System.Drawing.Size(172, 22);
            this.mnuShortcuts.Text = "快捷启动";
            //
            // 打开HTTP服务
            //
            this.mnuOpenHTTP.Name = "mnuOpenHTTP";
            this.mnuOpenHTTP.Size = new System.Drawing.Size(184, 22);
            this.mnuOpenHTTP.Text = "打开HTTP";
            this.mnuOpenHTTP.Click += new System.EventHandler(this.OpenHTTP_Click); C#的FTP服务器软件系统的设计与实现(20):http://www.youerw.com/jisuanji/lunwen_5865.html