c# - Get Method by CustomAttribute and then Invoke -

with massive learning curve custom attributes , reflection, still seem struggling. me out one?

basically want invoke method based on it's attribute.

this customattribute decorates method (it ever 1 method): [controllername(name="blog")]

public static string getcontent(string controllername, string singleitemname = "")  {     string returnval = null;     //get class type     type thistype = typeof(contentfacade);      //get member info      system.reflection.memberinfo info = typeof(contentfacade);      loop through attributes     foreach (object attrib in info.getcustomattributes(true))     {         //if attribute matches param controller name         //then invoke         if (attrib == controllername)         {              //get method attribute not method name             //i dont want method methodname             methodinfo themethod = thistype.getmethod(controllername);              //return value html end user             returnval = (string)themethod.invoke(controllername, null);         }     }      return returnval; } 

again, if possible method attribute.

really looking forward on this.

///edits sorry added comments in code illustrate issue. to:

• get attribute controllername == "blog"
• get method attribute , invoke

i don't want method method name.

regards,

a simple example be:

public static string getcontent(type type, string controllername)  {     foreach (methodinfo method in type.getmethods(bindingflags.static | bindingflags.public))     {         controllernameattribute controller = (controllernameattribute)method.getcustomattribute(typeof(controllernameattribute));          if (controller == null)         {             continue;         }          if (controller.name != controllername)         {             continue;         }          if (method.isgenericmethod)         {             throw new invalidoperationexception();         }          if (method.getparameters().length != 0)         {             throw new invalidoperationexception();         }          if (method.returntype != typeof(string))         {             throw new invalidoperationexception();         }          string result = (string)method.invoke(null, null);         return result;     }      throw new invalidoperationexception(); } 

you use like:

string result = getcontent(typeof(program), "blog"); 

where program class method should be.

note that, written, code work on static methods. if want use instance methods, change to:

public static string getcontent(object instance, string controllername)  {     type type = instance.gettype();      foreach (methodinfo method in type.getmethods(bindingflags.static | bindingflags.public))     {         controllernameattribute controller = (controllernameattribute)method.getcustomattribute(typeof(controllernameattribute));          if (controller == null)         {             continue;         }          if (controller.name != controllername)         {             continue;         }          if (method.isgenericmethod)         {             throw new invalidoperationexception();         }          if (method.getparameters().length != 0)         {             throw new invalidoperationexception();         }          if (method.returntype != typeof(string))         {             throw new invalidoperationexception();         }          string result = (string)method.invoke(instance, null);         return result;     }      throw new invalidoperationexception(); } 

in general, both methods don't check if there single method given controllername. execute first 1 found. possible checking, using linq, wanted keep foreach cycle simple , linear, , show other checks should done.