how do I find out the return type of a method from the MethodBase? I'm using PostSharp and trying to override the CompileTimeValidate(MethodBase method) method to make sure the attribute is applied to a method with the correct signature.
Thanks,
MethodBase
itself does not have a return type because in addition to normal methods it also is used to represent methods, such as constructors, which have no return type. Instead you need to see if it's an instance of MethodInfo
and check that for the ReturnType
property.
CompileTimeValidate(MethodBase method) {
var normalMethod = method as MethodInfo;
if( normalMethod != null) {
ValidateReturnType(normalMethod.ReturnType);
}
}
MethodBase is used as a base class of MethodInfo which has a property ReturnType .
You could try and cast to an instance of MethodInfo and check that property.
Try something like this. MethodInfo
has the property but MethodBase
is used for constructors as well, and they do not have a return type.
MethodBase b = this.GetType().GetMethods().First();
if(b is MethodInfo)
MessageBox.Show((b as MethodInfo).ReturnType.Name);
Try the MethodInfo.ReturnType
property.
To get the return type property, first get the Type
. From the Type
, get the MethodInfo
. From the MethodInfo
, get the ReturnType
.
It seems like you can't do it with MethodBase...
http://msdn.microsoft.com/en-us/library/system.reflection.methodinfo.returntype.aspx
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