Menu
To extract the number and names of the arguments from a function or function[something] to return ("arg1", "arg2"), we use the inspect module. The given code is written as follows using inspect module to find the parameters inside the functions aMethod and foo.
Following is a generic example which uses getParameterNames() method of HttpServletRequest to read all the available form parameters. This method returns an Enumeration that contains the parameter names in an unspecified order.
There are two ways to call a method with parameters in java: Passing parameters of primtive data type and Passing parameters of reference data type. 4. in Java, Everything is passed by value whether it is reference data type or primitive data type.
Note: Parameters refers to the list of variables in a method declaration. Arguments are the actual values that are passed in when the method is invoked. When you invoke a method, the arguments used must match the declaration's parameters in type and order.
public static string GetParamName(System.Reflection.MethodInfo method, int index)
{
string retVal = string.Empty;
if (method != null && method.GetParameters().Length > index)
retVal = method.GetParameters()[index].Name;
return retVal;
}
The above sample should do what you need.
Try something like this:
foreach(ParameterInfo pParameter in pMethod.GetParameters())
{
//Position of parameter in method
pParameter.Position;
//Name of parameter type
pParameter.ParameterType.Name;
//Name of parameter
pParameter.Name;
}
without any kind of error checking:
public static string GetParameterName ( Delegate method , int index )
{
return method.Method.GetParameters ( ) [ index ].Name ;
}
You could use 'Func<TResult>' and derivatives to make this work for most situations
nameof(arg1) will return the name of the variable arg1
https://msdn.microsoft.com/en-us/library/dn986596.aspx
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With