ServiceContractGenerator CodeDomProvider编译错误

我正在尝试使用ServiceCodeGenerator和CodeDomProvider来动态创建服务引用。 使用CodeDomProvider编译代码时，会抛出以下错误。

它看起来只适用于特定的Web服务。 我能够编译其他Web服务，但是这个会抛出下面的编译错误。

知道如何编辑源代码或忽略错误吗？

CS0579：复制’System.CodeDom.Compiler.GeneratedCodeAttribute’属性99 CS0579：复制’System.Diagnostics.DebuggerStepThroughAttribute’属性101 CS0579：复制’System.CodeDom.Compiler.GeneratedCodeAttribute’属性191 CS0579：复制’System.Diagnostics.DebuggerStepThroughAttribute’属性193

代码如下：

Uri address = new Uri(url + "?wsdl"); MetadataExchangeClientMode mexMode = MetadataExchangeClientMode.HttpGet; MetadataExchangeClient metadataExchangeClient = new MetadataExchangeClient(address, mexMode); metadataExchangeClient.ResolveMetadataReferences = true; //Trust all certificates System.Net.ServicePointManager.ServerCertificateValidationCallback = ((sender, certificate, chain, sslPolicyErrors) => true); ICredentials networkCredential = new NetworkCredential("username", "password", "domain"); metadataExchangeClient.HttpCredentials = networkCredential; MetadataSet metadataSet = metadataExchangeClient.GetMetadata(); WsdlImporter wsdlImporter = new WsdlImporter(metadataSet); Collection contracts = wsdlImporter.ImportAllContracts(); ServiceEndpointCollection allEndpoints = wsdlImporter.ImportAllEndpoints(); ServiceContractGenerator serviceContractGenerator = new ServiceContractGenerator(); foreach (ContractDescription contract in contracts) { serviceContractGenerator.GenerateServiceContractType(contract); } // Generate a code file for the contracts. CodeGeneratorOptions codeGeneratorOptions = new CodeGeneratorOptions(); codeGeneratorOptions.BracingStyle = "C"; // Create Compiler instance of a specified language. CompilerResults compilerResults; using (CodeDomProvider codeDomProvider = CodeDomProvider.CreateProvider("CSharp")) { // Adding WCF-related assemblies references as copiler parameters, so as to do the compilation of particular service contract. CompilerParameters compilerParameters = new CompilerParameters(new string[] { "System.dll", "System.ServiceModel.dll", "System.Runtime.Serialization.dll" }); compilerParameters.GenerateInMemory = true; compilerParameters.WarningLevel = 1; compilerResults = codeDomProvider.CompileAssemblyFromDom(compilerParameters, serviceContractGenerator.TargetCompileUnit); } if (compilerResults.Errors.Count <= 0) { assembly = compilerResults.CompiledAssembly; } else { foreach (CompilerError error in compilerResults.Errors) { Console.WriteLine(error.ErrorNumber + ": " + error.ErrorText + " " + error.IsWarning + " " + error.Line); } throw new Exception("Compiler Errors - unable to build Web Service Assembly"); } 

Answer 1

问题是生成器使用自己的CodeCompileUnit，并生成具有相同名称的类。 有必要强制它使用WsdlImporter使用的CodeCompileUnit，例如（用了一天时间来查找）：

 Collection contracts = importerWsdl.ImportAllContracts(); ServiceEndpointCollection allEndpoints = importerWsdl.ImportAllEndpoints(); CodeCompileUnit unit = (CodeCompileUnit) importerWsdl.State[typeof (CodeCompileUnit)]; ServiceContractGenerator generator = new ServiceContractGenerator(unit); 

现在我们有一个完整的“添加服务参考”

Answer 2

您可能需要从WsdlImporter中显式删除XmlSerializerMessageContractImporter扩展

试试这个..

  var wsdlImporter = new WsdlImporter(metadataSet); // when you initialize the WsdlImporter with a 'MetadataSet', i // the WsdlImporter.WsdlImportExtensions will already be // loaded with 7 or so extensions. // one of them being, XmlSerializerMessageContractImporter // Removing this extension seems to be solving the problem of // Duplicate Data Contracts // and Compile errors on Duplicate 'GeneratedCode' attribute etc. wsdlImporter.WsdlImportExtensions .Remove(typeof(XmlSerializerMessageContractImporter));