请问  例子中每个控件的最后一行都有：+= new System.Windows.Forms.MouseEventHandler(this.User_Folk_MouseUp);  我的怎么没有出来这一行，请问如何生成这行代码，另 此行调用的函数的作用是什么呢？
this.groupBox2.Text = "权限";
            // 
            // User_Setup
            // 
            this.User_Setup.AutoSize = true;
            this.User_Setup.Location = new System.Drawing.Point(123, 182);
            this.User_Setup.Name = "User_Setup";
            this.User_Setup.Size = new System.Drawing.Size(72, 16);
            this.User_Setup.TabIndex = 22;
            this.User_Setup.Text = "用户设置";
            this.User_Setup.UseVisualStyleBackColor = true;
            this.User_Setup.MouseUp += new System.Windows.Forms.MouseEventHandler(this.User_Folk_MouseUp);
            // 
            // User_NewLogon
            // 
            this.User_NewLogon.AutoSize = true;
            this.User_NewLogon.Location = new System.Drawing.Point(14, 182);
            this.User_NewLogon.Name = "User_NewLogon";
            this.User_NewLogon.Size = new System.Drawing.Size(72, 16);
            this.User_NewLogon.TabIndex = 21;
            this.User_NewLogon.Text = "重新登录";
            this.User_NewLogon.UseVisualStyleBackColor = true;
            this.User_NewLogon.MouseUp += new System.Windows.Forms.MouseEventHandler(this.User_Folk_MouseUp);