public IQueryable GetQueryable(ResourceSet set)
{
if (set.Name == "Customers") return Customers.AsQueryable();
if (set.Name == "ResidentialCustomers") return ResidentialCustomers.AsQueryable();
if (set.Name == "Users") return Users.AsQueryable();
throw new NotSupportedException(string.Format("{0} not found", set.Name));
}
public void AddResource(ResourceType resourceType, object resource)
{
if (resourceType.InstanceType == typeof(Customer))
{
Customer i = resource as Customer;
if (i != null)
{
Customers.Add(i);
return;
}
}
if (resourceType.InstanceType == typeof(ResidentialCustomer))
{
ResidentialCustomeri = resource as ResidentialCustomer;
if (i != null)
{
ResidentialCustomers.Add(i);
return;
}
}
if (resourceType.InstanceType == typeof(User))
{
Useri = resource as User;
if (i != null)
{
Users.Add(i);
return;
}
}
throw new NotSupportedException(string.Format("{0} not found for adding.", resourceType.FullName));
}
public void SaveChanges()
{
foreach (var item in Customers.Where(i => i.IsModified == true))
item.Save();
foreach (var item in ResidentialCustomers.Where(i => i.IsModified == true))
item.Save();
foreach (var item in Users.Where(i => i.IsModified == true))
item.Save();
}
public void DeleteResource(object resource)
{
if (resource.GetType() == typeof(Customer))
{
Customers.Remove(resource as Customer);
return;
}
if (resource.GetType() == typeof(ResidentialCustomer))
{
ResidentialCustomers.Remove(resource as ResidentialCustomer);
return;
}
if (resource.GetType() == typeof(User))
{
Users.Remove(resource as User);
return;
}
throw new NotSupportedException(string.Format("{0} not found for deletion.", resource.GetType().FullName));
}
//Creating Customers
private Customers CreateCustomer(int index, string kwhStr, string offPeakStr = "")
{
decimal offPeak;
decimal kwh;
if (index == 0) // Residential
{
bool succeeded = decimal.TryParse(kwhStr, out kwh);
if (succeeded)
{
Customers c = new ResidentialCustomers(txtAccountNumber.Text, txtCustomerName.Text);
c.CalculateCharge(kwh);
return(c);
}
}
else if (index == 1) // Commercial
{
bool succeeded = decimal.TryParse(kwhStr, out kwh);
if (succeeded)
{
Customers c = new CommercialCustomers(txtAccountNumber.Text, txtCustomerName.Text);
c.CalculateCharge(kwh);
return(c);
}
}
else // Industrial
{
bool succeeded = decimal.TryParse(kwhStr, out kwh);
bool succeeded2 = decimal.TryParse(offPeakStr, out offPeak);
if (succeeded && succeeded2)
{
Customers c = new IndustrialCustomers(txtAccountNumber.Text, txtCustomerName.Text);
c.CalculateCharge(kwh, offPeak);
return(c);
}
}
return(null);
}
