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using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Web.Services;
using System.Web.Services.Description;
using System.Web.Services.Discovery;
using System.Xml;
using System.Security.Permissions;
namespace WebApplication1
{
internal class WsProxy
{
[SecurityPermissionAttribute(SecurityAction.Demand, Unrestricted = true)]
internal static object CallWebService(string webServiceAsmxUrl, string serviceName, string methodName, object[] args)
{
try
{
System.Net.WebClient client = new System.Net.WebClient();
client.Headers.Clear();
//-Connect To the web service
//System.IO.Stream stream = client.OpenRead(@webServiceAsmxUrl + "?wsdl");
XmlTextReader xmlreader = new XmlTextReader(webServiceAsmxUrl + "?wsdl");
//--Now read the WSDL file describing a service.
ServiceDescription description = ServiceDescription.Read(xmlreader);
///// LOAD THE DOM /////////
//--Initialize a service description importer.
ServiceDescriptionImporter importer = new ServiceDescriptionImporter();
importer.ProtocolName = "Soap12"; // Use SOAP 1.2.
importer.AddServiceDescription(description, null, null);
//--Generate a proxy client.
importer.Style = ServiceDescriptionImportStyle.Client;
//--Generate properties to represent primitive values.
importer.CodeGenerationOptions = System.Xml.Serialization.CodeGenerationOptions.GenerateProperties;
//--Initialize a Code-DOM tree into which we will import the service.
CodeNamespace nmspace = new CodeNamespace();
CodeCompileUnit unit1 = new CodeCompileUnit();
unit1.Namespaces.Add(nmspace);
//--Import the service into the Code-DOM tree. This creates proxy code
//--that uses the service.
ServiceDescriptionImportWarnings warning = importer.Import(nmspace, unit1);
if (warning == 0) //--If zero then we are good to go
{
//--Generate the proxy code
CodeDomProvider provider1 = CodeDomProvider.CreateProvider("CSharp");
//--Compile the assembly proxy with the appropriate references
string[] assemblyReferences = new string[5] { "System.dll", "System.Web.Services.dll", "System.Web.dll", "System.Xml.dll", "System.Data.dll" };
CompilerParameters parms = new CompilerParameters(assemblyReferences);
CompilerResults results = provider1.CompileAssemblyFromDom(parms, unit1);
//-Check For Errors
if (results.Errors.Count > 0)
{
foreach (CompilerError oops in results.Errors)
{
System.Diagnostics.Debug.WriteLine("========Compiler error============");
System.Diagnostics.Debug.WriteLine(oops.ErrorText);
}
throw new System.Exception("Compile Error Occured calling webservice. Check Debug ouput window.");
}
//--Finally, Invoke the web service method
object wsvcClass = results.CompiledAssembly.CreateInstance(serviceName);
System.Reflection.MethodInfo mi = wsvcClass.GetType().GetMethod(methodName);
return mi.Invoke(wsvcClass, args);
}
else
{
return null;
}
}
catch (Exception e)
{
//serviceActionsExternes._logger.Error("CallWebService " + e.Message);
return null;
}
}
}
} |
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