MatserDetail自动展开

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using DevExpress.Xpf.Grid;

namespace WpfApplication21
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private List<Employee> employees;
private List<Employee> Employees
{
get
{
if (employees == null)
PopulateEmployees();
return employees;

}
}
private void PopulateEmployees()
{
employees = new List<Employee>();
employees.Add(new Employee("Bruce", "Cambell", "Sales Manager", "Education includes a BA in psychology from Colorado State University in 1970. He also completed 'The Art of the Cold Call.' Bruce is a member of Toastmasters International."));
employees[0].Orders.Add(new Order("Supplier 1", DateTime.Now, "TV", 20));
employees[0].Orders.Add(new Order("Supplier 2", DateTime.Now.AddDays(3), "Projector", 15));
employees[0].Orders.Add(new Order("Supplier 3", DateTime.Now.AddDays(3), "HDMI Cable", 50));
employees.Add(new Employee("Cindy", "Haneline", "Vice President of Sales", "Cindy received her BTS commercial in 1974 and a Ph.D. in international marketing from the University of Dallas in 1981. She is fluent in French and Italian and reads German. She joined the company as a sales representative, was promoted to sales manager in January 1992 and to vice president of sales in March 1993. Cindy is a member of the Sales Management Roundtable, the Seattle Chamber of Commerce, and the Pacific Rim Importers Association."));
employees[1].Orders.Add(new Order("Supplier 1", DateTime.Now.AddDays(1), "Blu-Ray Player", 10));
employees[1].Orders.Add(new Order("Supplier 2", DateTime.Now.AddDays(1), "Blu-Ray Player", 10));
employees[1].Orders.Add(new Order("Supplier 3", DateTime.Now.AddDays(1), "Blu-Ray Player", 10));
employees[1].Orders.Add(new Order("Supplier 4", DateTime.Now.AddDays(1), "Blu-Ray Player", 10));
employees.Add(new Employee("Jack", "Lee", "Sales Manager", "Education includes a BA in psychology from Colorado State University in 1970. He also completed 'The Art of the Cold Call.' Jack is a member of Toastmasters International."));
employees[2].Orders.Add(new Order("Supplier 1", DateTime.Now, "AV Receiver", 20));
employees[2].Orders.Add(new Order("Supplier 2", DateTime.Now.AddDays(3), "Projector", 15));
employees.Add(new Employee("Cindy", "Johnson", "Vice President of Sales", "Cindy received her BTS commercial in 1974 and a Ph.D. in international marketing from the University of Dallas in 1981. She is fluent in French and Italian and reads German. She joined the company as a sales representative, was promoted to sales manager in January 1992 and to vice president of sales in March 1993. Cindy is a member of the Sales Management Roundtable, the Seattle Chamber of Commerce, and the Pacific Rim Importers Association."));
}

private void Window_Loaded(object sender, RoutedEventArgs e)
{
gridControl1.ItemsSource = Employees;

}

#region #MasterRowExpanded
private void TableView_KeyDown(object sender, KeyEventArgs e)
{
TableView view = sender as TableView;

// Avoid key processing when focus is within detail views
// or when a groupo row is focused
if (!view.IsFocusedView || view.FocusedRowHandle < 0)
return;

// Process CTRL+* key combination
if (e.Key == Key.Multiply && ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control))
{
bool finalExpandedState = !view.Grid.IsMasterRowExpanded(view.FocusedRowHandle);
view.Grid.SetMasterRowExpanded(view.FocusedRowHandle, finalExpandedState);
e.Handled = true;
}
}
#endregion #MasterRowExpanded

#region #ExpandCollapse
private void buttonExpandAll_Click(object sender, RoutedEventArgs e)
{
for (int i = 0; i < gridControl1.VisibleRowCount; i++)
{
var rowHandle = gridControl1.GetRowHandleByVisibleIndex(i);
gridControl1.ExpandMasterRow(rowHandle);
}
}
private void buttonCollapseAllButThis_Click(object sender, RoutedEventArgs e)
{
if (tableView1.FocusedRowHandle >= 0)
gridControl1.ExpandMasterRow(tableView1.FocusedRowHandle);
for (int i = 0; i < gridControl1.VisibleRowCount; i++)
{
int rowHandle = gridControl1.GetRowHandleByVisibleIndex(i);
if (rowHandle != tableView1.FocusedRowHandle)
gridControl1.CollapseMasterRow(rowHandle);
}
}
#endregion #ExpandCollapse
}

public class Employee
{
private string firstName;
private string lastName;
private string title;
private string notes;
private List<Order> orders;
public Employee(string firstName, string lastName, string title, string notes)
{
this.firstName = firstName;
this.lastName = lastName;
this.title = title;
this.notes = notes;
this.orders = new List<Order>();
}
public Employee() { }
public string FirstName { get { return firstName; } set { firstName = value; } }
public string LastName { get { return lastName; } set { lastName = value; } }
public string Title { get { return title; } set { title = value; } }
public string Notes { get { return notes; } set { notes = value; } }
public List<Order> Orders { get { return orders; } }
}

public class Order
{
private string supplier;
private DateTime date;
private string productName;
private int quantity;
public Order(string supplier, DateTime date, string productName, int quantity)
{
this.supplier = supplier;
this.date = date;
this.productName = productName;
this.quantity = quantity;
}
public string Supplier { get { return supplier; } set { supplier = value; } }
public DateTime Date { get { return date; } set { date = value; } }
public string ProductName { get { return productName; } set { productName = value; } }
public int Quantity { get { return quantity; } set { quantity = value; } }
}

}