public WorkspaceInstance()
{
if (System.ComponentModel.DesignerProperties.GetIsInDesignMode(new DependencyObject()))
{
Workspace.LoadInstance(this);
}
else
{
System.Data.Common.DbConnection connection = null;
try {
connection = ((IObjectContextAdapter)Workspace.NorthwindModel).ObjectContext.Connection;
connection.Open();
if (connection.State.HasFlag(System.Data.ConnectionState.Open))
{
_Employees = Workspace.Employees;
_Orders = Workspace.Orders;
_CustomersTreeList = Workspace.CustomersTreeList;
_Suppliers = Workspace.Suppliers;
_Customers = Workspace.Customers;
_Categories = Workspace.Categories;
_Products = Workspace.Products;
}
}
catch (Exception ex) {
App.LogException(ex);
Workspace.LoadInstance(this);
}
finally {
if (connection != null && connection.State.HasFlag(System.Data.ConnectionState.Open))
{
connection.Close();
}
}
}
}
internal static WorkspaceInstance LoadInstance(WorkspaceInstance instance)
{
try {
System.Uri resourceUri = new System.Uri("/Northwind.NET.Sample;component/SampleData/Workspace.xaml", System.UriKind.Relative);
if (System.Windows.Application.GetResourceStream(resourceUri) != null)
{
System.Windows.Application.LoadComponent(instance, resourceUri);
foreach (Product product in instance.Products)
{
Category category = instance.Categories.Where(cat => cat.ID == product.CategoryID).FirstOrDefault();
if (category != null)
{
product.Category = category;
category.Products.Add(product);
}
Supplier supplier = instance.Suppliers.Where(suppl => suppl.ID == product.SupplierID).FirstOrDefault();
if (supplier != null)
{
supplier.Products.Add(product);
product.Supplier = supplier;
}
}
foreach (OrderDetail orderDetail in instance.OrderDetails)
{
Product product = instance.Products.Where(prod => prod.ID == orderDetail.ProductID).FirstOrDefault();
if (product != null)
{
product.OrderDetails.Add(orderDetail);
orderDetail.Product = product;
}
Order order = instance.Orders.Where(ord => ord.ID == orderDetail.OrderID).FirstOrDefault();
if (order != null)
{
order.OrderDetails.Add(orderDetail);
orderDetail.Order = order;
}
}
foreach (Order order in instance.Orders)
{
Customer customer = instance.Customers.Where(cust => cust.ID == order.CustomerId).FirstOrDefault();
if (customer != null)
{
customer.Orders.Add(order);
order.Customer = customer;
}
Employee employee = instance.Employees.Where(empl => empl.ID == order.EmployeeID).FirstOrDefault();
if (employee != null)
{
employee.Orders.Add(order);
order.Employee = employee;
}
}
CustomersTreeVm customersTreeList;
var listCustomersQuery = from cust in instance.Customers
orderby cust.Country
group cust by cust.Country into countryGroup
select new CountryCustomersTreeItem
{
Country = countryGroup.Key,
Count = countryGroup.Count(),
Cities = (
from country in countryGroup
group country by country.City into sityGroup
select new CityCustomersTreeItem
{
City = sityGroup.Key,
Count = sityGroup.Count(),
Customers = (from sity in sityGroup
select sity).ToList()
}
).ToList()
};
customersTreeList = new CustomersTreeVm(listCustomersQuery.ToList());
instance.CustomersTreeList = customersTreeList;
}
}
catch (System.Exception ex) {
App.LogException(ex);
}
return(instance);
}
