本文整理汇总了C#中System.Reflection.ConstructorInfo.ParameterTypes方法的典型用法代码示例。如果您正苦于以下问题：C# ConstructorInfo.ParameterTypes方法的具体用法？C# ConstructorInfo.ParameterTypes怎么用？C# ConstructorInfo.ParameterTypes使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Reflection.ConstructorInfo的用法示例。
在下文中一共展示了ConstructorInfo.ParameterTypes方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CreateDelegateForConstructor
/// <summary>
/// This generates a Delegate for a constructor that is strongly typed to the constructor type itself
/// It does this by dynamically creating a call via reflection to a constructor and then casting that to the type
/// created.
/// </summary>
/// <param name="ctorInfo">the constructor info for a constructor.</param>
/// <returns>A strongly typed delegate for creating new objects of a given type</returns>
public static Delegate CreateDelegateForConstructor(ConstructorInfo ctorInfo)
{
if (ctorInfo == null || ctorInfo.DeclaringType == null)
{
throw new ArgumentNullException(nameof(ctorInfo));
}
// Get the parameter types for the constructor
var parameterTypes = ctorInfo.ParameterTypes();
// Create a set of parameters for the expression
Expression[] pars = parameterTypes.Select(Expression.Parameter).ToArray();
// create the call to the constructor
Expression expression = Expression.Call(Expression.Constant(ctorInfo),
typeof(ConstructorInfo).GetMethod("Invoke", new[] {typeof(object[])}),
Expression.NewArrayInit(typeof(object), pars.Select(each => Expression.TypeAs(each, typeof(object)))));
// wrap the return type to return the actual declaring type.
expression = Expression.TypeAs(expression, ctorInfo.DeclaringType);
// create a Func<...> delegate type for the lambda that we actually want to create
var funcType = Expression.GetFuncType(parameterTypes.ConcatSingleItem(ctorInfo.DeclaringType).ToArray());
// dynamically call Lambda<Func<...>> to create a type specific lambda expression
//Expression.Lambda<Func<object>>()
var lambda = (LambdaExpression)LambdaMethodInfo.MakeGenericMethod(funcType).Invoke(null, new object[] {expression, pars});
// return the compiled lambda
return lambda.Compile();
}