PDMS c# 动态添加按钮到用户控件

先看效果，这个方法可以用于任何形式的程序，思路就是这样我比较喜欢偷懒

这个按钮是自动添加上去的

1# 定义一个特性

 public class MyPdmsFunction : Attribute
    {
        public string FunctionName { get; set; }
        public string ClassName { get; set; }
        public MyPdmsFunction(string _Name,string _clsName="")
        {
            this.FunctionName = _Name;
            this.ClassName = _clsName;
        }
    }

2# 写自己的方法，并在方法上标记该特性

public class 画圆测试
    {
        [MyPdmsFunction(nameof(画圆测试), nameof(画圆测试函数))]
        public static void 画圆测试函数(WindowManager wm, Command _cmd)
        {
            var draftApp = new MarDrafting();
            MarUi marui = new MarUi();
            var pt = new MarPointPlanar();
            marui.PointPlanarReq("指定一个圆心：\n", pt);
            var pt1 = new MarPointPlanar();
            marui.PointPlanarReq("指定一个圆上的一点：\n", pt1);
            var r = pt.DistanceToPoint(pt1);
            draftApp.CircleNew(new Aveva.Marine.Geometry.MarCirclePlanar(pt, r));
            wm.StatusBar.Text = "创建成功！";
        }
    }

3#在你的主窗体上做文章，利用特性和反射知识动态加载按钮和按钮的事件

 

public partial class UserControl1 : UserControl
    {
        public WindowManager WinManager { get; set; }
        public Command Cmd { get; set; }
 
        public UserControl1(WindowManager wm, Command _cmd)
        {
            InitializeComponent();
 
            this.WinManager = wm; this.Cmd = _cmd;
            //反射读取程序集
            var allCls = Assembly.GetExecutingAssembly().GetTypes().Where(a => a.IsClass && a.IsPublic);
            List<MethodInfo> mis = new List<MethodInfo>();
            //提取所有含有自定义特性标记的方法
            foreach (var item in allCls)
            {
                var curClsMis = item.GetMethods().Where(m => m.GetCustomAttributes(typeof(MyPdmsFunction), true).Any());
                if (curClsMis.Count() > 0) mis.AddRange(curClsMis);
            }
            if (mis.Any())
            {
                var i = 0;
                foreach (var mi in mis)
                {
                    MyPdmsFunction myAtt = mi.GetCustomAttributes(true).First(att => att.GetType().FullName == typeof(MyPdmsFunction).FullName) as MyPdmsFunction;
                    var btn = new Button();
                    this.SuspendLayout();
                    btn.Location = new System.Drawing.Point(15, 30 * (i + 1));
                    btn.Name = myAtt.FunctionName;
                    btn.Size = new System.Drawing.Size((int)(this.Width * 0.85), 25);
                    btn.TabIndex = i;
                    btn.Text = myAtt.FunctionName;
                    btn.UseVisualStyleBackColor = true;
                    btn.Click += (o, e) => mi.Invoke(mi.IsStatic ? null : Activator.CreateInstance(mi.DeclaringType), new object[] { wm, _cmd });
                    this.Controls.Add(btn);
                    i++;
                }
            }
        }
    }
}