using System; 
using System.Data; 

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using aClass = ConsoleApplication1.MyClass; 
using bClass = ConsoleApplication2.MyClass; 
namespace ConsoleApplication1 
{ 
public 
class MyClass 
{ 
public 
override 
string ToString() 
{ 
return "You are in ConsoleApplication1.MyClass"; 
} 
} 
class TestUsing 
{ 
} 
} 
namespace ConsoleApplication2 
{ 
class MyClass 
{ 
public 
override 
string ToString() 
{ 
return "You are in ConsoleApplication2.MyClass"; 
} 
} 
} 
namespace TestUsing 
{ 
using ConsoleApplication1; 
using ConsoleApplication2; 
class ClassTestUsing 
{ 
static 
void Main() 
{ 
aClass my1 = new aClass(); 
Console.WriteLine(my1); 
bClass my2 = new bClass(); 
Console.WriteLine(my2); 
Console.WriteLine("ress any key"); 
Console.Read(); 
} 
} 
} 

public 
static DataTable GetTable(string sql, int executeTimeOut, string connStringName) 
{ 
DataTable dtRet = new DataTable(); 
using (SqlConnection sc = new SqlConnection(connStringName)) 
{ 
using (SqlDataAdapter sqa = new SqlDataAdapter(sql, sc)) 
{ 
sqa.SelectCommand.CommandTimeout = executeTimeOut; 
sqa.Fill(dtRet); 
return dtRet; 
} 
} 
}