c# - Method to pass 3 different data types to do the same thing? -

i think title might wrong.. haha unsure.. anyway..

i have 3 different data types..

public class data1 {     public color color;     public int len;     public drawingvisual dv;     other vars... } public class data2 {     public color color;     public int len;     public drawingvisual dv;     other vars different data1 vars... } 

etc...

how can create function pass these in , vars need inside function.. example..

void something(var data) {     switch (typeof(data))     {          case data1:           break;          case data1:           break;     } } 

this wont work obviously.. example..

how can this?

thanks

consider create classes hierarchy, , move method something hierarchy. base class:

public abstract class data {     public color color;     public int len;     public drawingvisual dv;      public abstract void something(); } 

and 2 derived classes data1 , data2:

public class data1 : data {     // other vars...      public override void something()     {         // use base class data , other vars     } }  public class data2 : data {     // other vars different data1 vars      public override void something()     {         // different implementation     } } 

now when have instances of these classes, can call something on each item without trying determine type. each item have required variables complete action:

list<data> items = // list of data1 , data2 foreach(data data in items)     data.dosomething();