StackOverflow2013

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13466782
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0
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1
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2012-11-20T04:51:05.633
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2012-11-20T04:51:05.633
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<p>It is not quite clear to me what the exactly you need, but i believe you can use the following technique:</p> <pre><code>object[] parameters = CreateParameters(typeof(MyClass<>), "MyMethod", typeof(int)); Debug.Assert(parameters[0] is int); Debug.Assert(parameters[1] is List<int>); Debug.Assert(parameters[2] is List<Tuple<int, string>>); //... object[] CreateParameters(Type type, string methodName, Type genericArgument) { object[] parameters = null; MethodInfo mInfo = type.GetMethod(methodName); if(mInfo != null) { var pInfos = mInfo.GetParameters(); parameters = new object[pInfos.Length]; for(int i = 0; i < pInfos.Length; i++) { Type pType = pInfos[i].ParameterType; if(pType.IsGenericParameter) parameters[i] = Activator.CreateInstance(genericArgument); if(pType.IsGenericType) { var arguments = ResolveGenericArguments(pType, genericArgument); Type definition = pType.GetGenericTypeDefinition(); Type actualizedType = definition.MakeGenericType(arguments); parameters[i] = Activator.CreateInstance(actualizedType); } } } return parameters; } Type[] ResolveGenericArguments(Type genericType, Type genericArgument) { Type[] arguments = genericType.GetGenericArguments(); for(int i = 0; i < arguments.Length; i++) { if(arguments[i].IsGenericParameter) arguments[i] = genericArgument; if(arguments[i].IsGenericType) { var nestedArguments = ResolveGenericArguments(arguments[i], genericArgument); Type nestedDefinition = arguments[i].GetGenericTypeDefinition(); arguments[i] = nestedDefinition.MakeGenericType(nestedArguments); } } return arguments; } </code></pre>
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1. POCreate open constructed type from string
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1. USDmitryG
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1. COThanks for the code, but actually I don't want to create an instance of my type, nor even fully resolve it (ie I really want to generate what's in my "paramTypes").
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