目标参数计数异常：C#

Question

尝试通过字符串调用函数

{
    object[] Parms = new object[] { "oiad", "abdj", "i" };
    Type thisType = GetType();
    MethodInfo theMethod = thisType.GetMethod("invo");
    ParameterInfo[] parameters = theMethod.GetParameters();

    if (parameters.Length != 0)
    {
      theMethod.Invoke(_instance, Parms);
    }
}

public void invo(object[] per)
{
    //
}

例外：

TargetParameterCountException: Number of parameters specified does not match the expected number.
System.Reflection.MonoMethod.ConvertValues (System.Reflection.Binder binder, System.Object[] args, System.Reflection.ParameterInfo[] pinfo, System.Globalization.CultureInfo culture, System.Reflection.BindingFlags invokeAttr) (at <7d97106330684add86d080ecf65bfe69>:0)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <7d97106330684add86d080ecf65bfe69>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters)

如果我使用null作为参数：

theMethod.Invoke(_instance, null);

效果很好。问题在于传递参数和system.object

Answer 1

我你写：object[] Parms = new object[] { "oiad", "abdj", "i" };

这意味着方法 invo 的参数是： public void invo(string s1, string s2, string s3)

如果你有public void invo(object[] per)

你必须写object[] Parms = new object[] { new object[]{ "oiad", "abdj", "i"}};