.net c# 开发ActiveX组件

1. 新建一个解决方案,新建一个类库 ClassLibrary1

2.设置 ClassLibrary1 的属性 (1)应用程序 -->  程序集信息 --> 勾选 使程序集COM可见. (2)生成 --> 勾选 为COM Interop 注册.

3.修改程序集文件 AssemblyInfo.cs --> 添加代码 [assembly: AllowPartiallyTrustedCallers()]

4.添加接口类 IObjectSafety

    [ComImport, GuidAttribute("CB5BDC81-93C1-11CF-8F20-00805F2CD064")]
    [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IObjectSafety
    {
        [PreserveSig]
        int GetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] ref int pdwSupportedOptions, [MarshalAs(UnmanagedType.U4)] ref int pdwEnabledOptions);

        [PreserveSig()]
        int SetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] int dwOptionSetMask, [MarshalAs(UnmanagedType.U4)] int dwEnabledOptions);
    

    }

 5.新建类库(或者用户控件...) 并且实现 IObjectSafety接口,然后添加自定义的方法属性等操作

[Guid("4A44CF4E-F859-4328-AA22-3E9D7AFFF1AB")]
    public partial class UserControl1 : IObjectSafety
    {

        #region IObjectSafety 成员

        private const string _IID_IDispatch = "{00020400-0000-0000-C000-000000000046}";
        private const string _IID_IDispatchEx = "{a6ef9860-c720-11d0-9337-00a0c90dcaa9}";
        private const string _IID_IPersistStorage = "{0000010A-0000-0000-C000-000000000046}";
        private const string _IID_IPersistStream = "{00000109-0000-0000-C000-000000000046}";
        private const string _IID_IPersistPropertyBag = "{37D84F60-42CB-11CE-8135-00AA004BB851}";

        private const int INTERFACESAFE_FOR_UNTRUSTED_CALLER = 0x00000001;
        private const int INTERFACESAFE_FOR_UNTRUSTED_DATA = 0x00000002;
        private const int S_OK = 0;
        private const int E_FAIL = unchecked((int)0x80004005);
        private const int E_NOINTERFACE = unchecked((int)0x80004002);

        private bool _fSafeForScripting = true;
        private bool _fSafeForInitializing = true;


        public int GetInterfaceSafetyOptions(ref Guid riid, ref int pdwSupportedOptions, ref int pdwEnabledOptions)
        {
            int Rslt = E_FAIL;

            string strGUID = riid.ToString("B");
            pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA;
            switch (strGUID)
            {
                case _IID_IDispatch:
                case _IID_IDispatchEx:
                    Rslt = S_OK;
                    pdwEnabledOptions = 0;
                    if (_fSafeForScripting == true)
                        pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER;
                    break;
                case _IID_IPersistStorage:
                case _IID_IPersistStream:
                case _IID_IPersistPropertyBag:
                    Rslt = S_OK;
                    pdwEnabledOptions = 0;
                    if (_fSafeForInitializing == true)
                        pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA;
                    break;
                default:
                    Rslt = E_NOINTERFACE;
                    break;
            }

            return Rslt;

        }

        public int SetInterfaceSafetyOptions(ref Guid riid, int dwOptionSetMask, int dwEnabledOptions)
        {
            int Rslt = E_FAIL;
            string strGUID = riid.ToString("B");
            switch (strGUID)
            {
                case _IID_IDispatch:
                case _IID_IDispatchEx:
                    if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_CALLER) && (_fSafeForScripting == true))
                        Rslt = S_OK;
                    break;
                case _IID_IPersistStorage:
                case _IID_IPersistStream:
                case _IID_IPersistPropertyBag:
                    if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_DATA) && (_fSafeForInitializing == true))
                        Rslt = S_OK;
                    break;
                default:
                    Rslt = E_NOINTERFACE;
                    break;
            }

            return Rslt;

        }

        #endregion


　　　　　//自定义方法
        public string StartProcess(string path, string arg)
        {
            try
            {
                System.Diagnostics.Process process = new System.Diagnostics.Process();
                process.StartInfo.FileName = path;
                process.StartInfo.Arguments = arg;
                process.StartInfo.UseShellExecute = true;
                process.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Maximized;
                process.StartInfo.CreateNoWindow = true;
                process.StartInfo.RedirectStandardInput = false;
                process.StartInfo.RedirectStandardOutput = false;
                process.Start();
            }
            catch (Exception ex)
            {
                return ex.Message;
            }
            return string.Empty;
        }
    }

 ActiveX组件制作成功,然后重新生成,会报无法注册类型库,不要理,不影响大局.

6.添加 --> 安装向导 --> Setup1 --> 点击下一步 --> 点击下一步 --> 选择 主输出 来自 [我们的类库名称] --> 下一步 --> 下一步 --> 完成.

7.添加卸载文件 --> 在c:\windows\ 中查找 msiexec.exe 复制到容易找得到的文件夹下

8.在安装向导的应用程序文件夹中右键 --> 添加 --> 文件 --> 选择刚才的 msiexec.exe -->可以重命名为卸载 --> 然后右键选择创建快捷方式 --> 把创建的快捷方式剪贴到用户的"程序"菜单中 --> 右键快捷方式 --> 选择属性 --> 找到Arguments --> 设置其属性为 :   /X {项目编码} ( --> 项目编码为: 点击 安装部署 --> 选择属性窗口 --> 对应的 ProDuctCode的值)

以上为所以步奏,重新生成安装部署项目,会报错,不必在意,然后双击那个bin目录下的exe文件,安装文件

9.测试阶段,新建一个web项目 --> 在页面中 写入标签 -->

<object id="csharpActiveX" classid="clsid:4A44CF4E-F859-4328-AA22-3E9D7AFFF1AB"></object>

如果为用户控件时,可以定义width和height,还可以定义codebase="xxx.exe"

在javascript中可以用id调用方法document.getElementById("csharpActiveX").StartProcess("calc.exe","");