How to call base abstract or interface from DAL into BLL?
- by programmerist
How can i access abstract class in BLL ? i shouldn't see GenAccessor in BLL it must be private class GenAccessor . i should access Save method over _AccessorForSQL. ok?
MY BLL cs:
public class AccessorForSQL: GenoTip.DAL._AccessorForSQL
{
public bool Save(string Name, string SurName, string Adress)
{
ListDictionary ld = new ListDictionary();
ld.Add("@Name", Name);
ld.Add("@SurName", SurName);
ld.Add("@Adress", Adress);
return **base.Save("sp_InsertCustomers", ld, CommandType.StoredProcedure);**
}
}
i can not access base.Save....????????
it is my DAL Layer:
namespace GenoTip.DAL
{
public abstract class _AccessorForSQL
{
public abstract bool Save(string sp, ListDictionary ld, CommandType cmdType);
public abstract bool Update();
public abstract bool Delete();
public abstract DataSet Select();
}
private class GenAccessor : _AccessorForSQL
{
DataSet ds;
DataTable dt;
public override bool Save(string sp, ListDictionary ld, CommandType cmdType)
{
SqlConnection con = null;
SqlCommand cmd = null;
SqlDataReader dr = null;
try
{
con = GetConnection();
cmd = new SqlCommand(sp, con);
con.Open();
cmd.CommandType = cmdType;
foreach (string ky in ld.Keys)
{
cmd.Parameters.AddWithValue(ky, ld[ky]);
}
dr = cmd.ExecuteReader();
ds = new DataSet();
dt = new DataTable();
ds.Tables.Add(dt);
ds.Load(dr, LoadOption.OverwriteChanges, dt);
}
catch (Exception exp)
{
HttpContext.Current.Trace.Warn("Error in GetCustomerByID()", exp.Message, exp);
}
finally
{
if (dr != null) dr.Close();
if (con != null) con.Close();
}
return (ds.Tables[0].Rows.Count 0) ? true : false;
}
public override bool Update()
{
return true;
}
public override bool Delete()
{
return true;
}
public override DataSet Select()
{
DataSet dst = new DataSet();
return dst;
}
private static SqlConnection GetConnection()
{
string connStr = WebConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
SqlConnection conn = new SqlConnection(connStr);
return conn;
}
