Sure ur DAL is a Class library ,if it is then add a class in it wiht some specifc name and u can create there any methods u want.
public DataTable GetEntity(string sqlQuery)
{
DataTable dt = new DataTable();
dt.Rows.Clear();
sqlAdapter = new SqlDataAdapter(sqlQuery, sqlConn);
sqlAdapter.Fill(dt);
sqlAdapter.Dispose();
return dt;
}
the thing is that build the DAl after completing coding in created class and the whole application then u can access those methods with object.mehodname anywhere