orm - C# - Passing an anonymous function as a parameter -

i'm using fluentdata orm database , i'm trying create generic query method:

internal static t queryobject<t>(string sql, object[] param, func<dynamic, t> mapper) {     return mydb.sql(sql, param).querynoautomap<t>(mapper).firstordefault(); } 

except in class's function:

public class mydbobject {     public int id { get; set; } }   public static mydbobject mapper(dynamic row) {     return new mydbobject {     id = row.id     }; }  public static mydbobject getdbobjectfromtable(int id) {     string sql = @"select id mytable id=@id";     dynamic param = new {id = id};     return query<mydbobject>(sql, param, mapper);  } 

at query<mydbobject>(sql, param, mapper) compilers says:

an anonymous function or method group connot used constituent value of dynamically bound object.

anyone have idea of means?

edit:

the compiler doesn't complain when convert method delegate:

public static func<dynamic, mydbobject> tabletomydbobject =     (row) => new mydbobject                  {                      id = row.id                  } 

it still begs question of why 1 way valid not other.

the issue error says...

an anonymous function or method group cannot used constituent value of dynamically bound operation.

it means can't use anonymous function because 1 of parameters type dynamic, fix method cast param object

public static mydbobject getdbobjectfromtable(int id) {     string sql = @"select id mytable id=@id";      dynamic param = new {id = id}; // type dynamic causes issue.      // fix cast object     return query<mydbobject>(sql, (object)param, mapper);  } 

or presumably looking @ code...simply.

    return query<mydbobject>(sql, id, mapper);  

the reason doesn't complain when use func delegate because never invoke dlr using type dynamic there no dynamically bound operation.