Creating A SQLExecute Function In C#

Hi im trying to create a function called SQLExecute that takes an SQL query, executes it and returns the resultant dataset in dsetResponse and if an error in strError, however i am unsure if whether im on the right track or not, where would i put the sql query and what else needs to be done, my code is as follows;public static DataSet SQLExecute(string strSQL, string strError)

{

DataSet dsetResponse = new DataSet();

try

{using (SqlConnection conn = new SqlConnection(DHOC.clsDHOC.GetConnString()))

{SqlCommand cmd = new SqlCommand();cmd.CommandType = CommandType.Text;

}

}catch (ThreadAbortException thEx)

{throw;

}catch (Exception ex)

{

string strError

}return dsetResponse;

}