如何创建简单的ActiveX控件？

本文介绍了如何创建简单的ActiveX控件？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述我正在尝试创建真正的简单 ActiveX 控件。我真的不在乎它现在做了什么。我只想调用其中一种方法。我得到"对象不支持属性或方法'PrintDocument'。" 我错过了什么？请参阅以下代码... 项目（C＃类库）：BrowserPrintDocument 注意：程序集是ComVisible，已签名并分配了GUID。还有一个安装项目（BrowserPrintDocumentSetup） IBrowserPrinter.cs（界面）使用System; 使用System.Runtime.InteropServices; 名称空间BrowserPrintDocument { ///< summary> ///此界面将方法公开给javascript ///< / summary> [Guid（" 68BD4E0D-D7BC-4CF6-BEB7-CAB950161E79"）] [InterfaceType（ComInterfaceType.InterfaceIsIDispatch）] public interface IBrowserPrinter { / /将DispIdAttribute添加到源接口中的任何成员以指定COM DispId。 [DispId（0x60020001）] void PrintDocument（）; } } BrowserPrinter.cs（codebase）使用System;使用System.Drawing ; 使用System.Drawing.Printing; 使用System.Runtime.InteropServices; 名称空间BrowserPrintDocument { [ProgId（" BrowserPrinter"）] [Guid（" 23F51170-D125-4665-9909-701B6F233AF2"）] [ComVisible（true）] [ClassInterface（ClassInterfaceType.None）] public class BrowserPrinter：IBrowserPrinter { [ComVisible（true）] public void PrintDocument（） { var printDocument = new PrintDocument（）; printDocument.PrintPage + =（sender，args）=> { var image = Image.FromFile（@"C：\ Users \ Juulio.Bello \Pictures\untitled.png"）; args.Graphics.DrawImage（image，0,0，image.Width，image.Height）; }; printDocument.Print（）; } /////< summary> /////将类注册为控件并设置其CodeBase条目 /////< / summary> /////< param name =" key">控件的注册表项< / param> // [ComRegisterFunction（）] // public static void RegisterClass（string key） // { //} /// //<总结> /////被叫取消注册控件 /////< / summary> /////< param name =" key">注册表项< / param> // [ComUnregisterFunction（）] // public static void UnregisterClass（string key） // { //} } } 项目（VB WebForm应用程序）：测试 BrowserPrinter BrowserPrinter.aspx <％@ Page Language =" VB" AutoEventWireup = QUOT假QUOT;的CodeFile = QUOT; BrowserPrinter.aspx.vb"继承= QUOT; BrowserPrinter" ％GT; <！DOCTYPE html> < html xmlns =" http：//www.w3.org/1999/xhtml"> < head runat =" server"> < title>< / title> < / head> < body> < form id =" form1" RUNAT = QUOT;服务器"> < div> < object id =" BrowserPrinter"名称= QUOT; BrowserPrinter"的classid = QUOT; CLSID：23F51170-D125-4665-9909-701B6F233AF2"> < / div> < / form> < script type =" text / javascript"> 函数OpenActiveX（）{ try { document.BrowserPrinter.PrintDocument（）; } catch（Err）{ alert（Err.description）; } } OpenActiveX（）; < / script> < / body> < / html> BrowserPrinter.aspx.vb Partial Class BrowserPrinter Inherits System.Web.UI.Page End Class 什么我错过了吗？解决方案您的C＃代码实现了COM对象，但您的HTML代码需要ActiveX控件。一个合适的ActiveX控件需要实现其他几个接口。我认为你不需要ActiveX控件。只需将您的HTML代码更改为： var BrowserPrinter = new ActiveXObject（" BrowserPrinter"）; // ProgID是参数 BrowserPrinter.PrintDocument（）; 并省略< div> ...< / div> I am trying to create a really simple ActiveX control. I don't REALLY care what it does for now. I just want to be able to invoke one of its methods. I get "Object doesn't support property or method 'PrintDocument'." What am I missing? Please see code below...Project (C# Class Library): BrowserPrintDocumentNote: The assembly is ComVisible, signed and is assigned a GUID. There is also a Setup project (BrowserPrintDocumentSetup)IBrowserPrinter.cs (interface)using System;using System.Runtime.InteropServices;namespace BrowserPrintDocument{ /// <summary> /// This interface exposes methods to javascript /// </summary> [Guid("68BD4E0D-D7BC-4CF6-BEB7-CAB950161E79")] [InterfaceType(ComInterfaceType.InterfaceIsIDispatch)] public interface IBrowserPrinter { //Add a DispIdAttribute to any members in the source interface to specify the COM DispId. [DispId(0x60020001)] void PrintDocument(); }}BrowserPrinter.cs (codebase)using System;using System.Drawing;using System.Drawing.Printing;using System.Runtime.InteropServices;namespace BrowserPrintDocument{ [ProgId("BrowserPrinter")] [Guid("23F51170-D125-4665-9909-701B6F233AF2")] [ComVisible(true)] [ClassInterface(ClassInterfaceType.None)] public class BrowserPrinter : IBrowserPrinter { [ComVisible(true)] public void PrintDocument() { var printDocument = new PrintDocument(); printDocument.PrintPage += (sender, args) => { var image = Image.FromFile(@"C:\Users\Julio.Bello\Pictures\untitled.png"); args.Graphics.DrawImage(image, 0, 0, image.Width, image.Height); }; printDocument.Print(); } /////<summary> /////Register the class as a control and set its CodeBase entry /////</summary> /////<param name="key">The registry key of the control</param> //[ComRegisterFunction()] //public static void RegisterClass(string key) //{ //} /////<summary> /////Called to unregister the control /////</summary> /////<param name="key">The registry key</param> //[ComUnregisterFunction()] //public static void UnregisterClass(string key) //{ //} }}Project (VB WebForm Application): TestBrowserPrinterBrowserPrinter.aspx<%@ Page Language="VB" AutoEventWireup="false" CodeFile="BrowserPrinter.aspx.vb" Inherits="BrowserPrinter" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title></head><body> <form id="form1" runat="server"> <div> <object id="BrowserPrinter" name="BrowserPrinter" classid="clsid:23F51170-D125-4665-9909-701B6F233AF2"> </div> </form> <script type="text/javascript"> function OpenActiveX() { try { document.BrowserPrinter.PrintDocument(); } catch (Err) { alert(Err.description); } } OpenActiveX(); </script></body></html>BrowserPrinter.aspx.vbPartial Class BrowserPrinter Inherits System.Web.UI.PageEnd ClassWhat else am I missing? 解决方案 Your C# code implements a COM object but your HTML code is requiring an ActiveX control. A proper ActiveX control require the implementation of several other interfaces.I don't think you require an ActiveX control. Simply change your HTML code to something like:var BrowserPrinter = new ActiveXObject("BrowserPrinter"); //ProgID is the parameterBrowserPrinter.PrintDocument();and leave out the <div>...</div> 这篇关于如何创建简单的ActiveX控件？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！