WPF Binding Example – Student Information Management
Here is the complete source code for student information management explaining the concept of WPF Binding.
<Window x:Class="ListBoxDemo.StudentInformationWindow"
xmlns:mynamespace="clr-namespace:ListBoxDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Student Information Management" Height="370" Width="330">
<Grid Name="MyGrid">
<Grid.Resources>
<mynamespace:StudentInformation x:Key="CurrentStudent"/>
<mynamespace:StudentInformation x:Key="AnotherStudent"/>
</Grid.Resources>
<Grid.DataContext>
<Binding Source="{StaticResource CurrentStudent}"/>
</Grid.DataContext>
<Grid.RowDefinitions>
<RowDefinition Height="70"></RowDefinition>
<RowDefinition Height="35"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<StackPanel Orientation="Vertical" Grid.Row="0">
<TabPanel Margin="0,5,0,0">
<Label Content="Name:" Width="50"></Label>
<TextBox Name="gui_studentName" Width="220" Text="{Binding Path=Name, Mode=TwoWay}"></TextBox>
</TabPanel>
<TabPanel Margin="0,10,0,0">
<Label Content="City:" Width="50"></Label>
<TextBox Name="gui_studentCity" Width="220" Text="{Binding Path=City, Mode=TwoWay}"></TextBox>
</TabPanel>
</StackPanel>
<StackPanel Orientation="Horizontal" Grid.Row="1">
<Button Name="Add" Content="Add" Click="Add_Click" Width="50" Height="24" Margin="10,0,0,0" HorizontalAlignment="Center" VerticalAlignment="Center"></Button>
<Button Name="Edit" Content="Edit" Click="Edit_Click" Width="50" Height="24" Margin="10,0,0,0" HorizontalAlignment="Center" VerticalAlignment="Center"></Button>
<Button Name="Update" Content="Update" Click="Update_Click" Width="50" Height="24" Margin="10,0,0,0" HorizontalAlignment="Center" VerticalAlignment="Center"></Button>
<Button Name="Delete" Content="Delete" Click="Delete_Click" Width="50" Height="24" Margin="10,0,0,0" HorizontalAlignment="Center" VerticalAlignment="Center"></Button>
<Button Name="Event" Content="Event" Click="Event_Click" Width="50" Height="24" Margin="10,0,0,0" HorizontalAlignment="Center" VerticalAlignment="Center"></Button>
</StackPanel>
<ListBox Grid.Row="2" Name="gui_studentListBox" Width="290" Height="176" Margin="15,22,0,0" VerticalAlignment="Top"
HorizontalAlignment="Left" Visibility="Visible" SelectionMode="Single" ItemsSource="{Binding}"
SelectionChanged="gui_studentListBox_SelectionChanged">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="150"></ColumnDefinition>
<ColumnDefinition Width="*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Name}" FontSize="12"
Background="Transparent" Height="18" VerticalAlignment="Center">
</TextBlock>
<TextBlock Grid.Column="1" Text="{Binding City}" FontSize="12"
Background="Transparent" Height="18" VerticalAlignment="Center">
</TextBlock>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</Window>
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 System.ComponentModel;
using System.Collections.ObjectModel;
namespace ListBoxDemo
{
/// <summary>
/// Interaction logic for Window1.xaml
/// </summary>
public partial class StudentInformationWindow : Window
{
public StudentInformationWindow()
{
InitializeComponent();
gui_studentListBox.DataContext = new StudentInformationCollection();
StudentInformationCollection collection = (StudentInformationCollection)gui_studentListBox.DataContext;
collection.Add(new StudentInformation() { Name = "Kathir", City = "San Francisco" });
collection.Add(new StudentInformation() { Name = "David", City = "New York" });
collection.Add(new StudentInformation() { Name = "Xie", City = "Boston" });
collection.Add(new StudentInformation() { Name = "Linda", City = "Washington" });
collection.Add(new StudentInformation() { Name = "Jene", City = "New York" });
}
private void Add_Click(object sender, RoutedEventArgs e)
{
StudentInformationCollection collection = (StudentInformationCollection) gui_studentListBox.DataContext;
StudentInformation target = new StudentInformation();
StudentInformation source = (StudentInformation)MyGrid.DataContext;
target.Name = source.Name;
target.City = source.City;
collection.Add(target);
}
private void Edit_Click(object sender, RoutedEventArgs e)
{
if (gui_studentListBox.SelectedIndex >= 0)
{
StudentInformationCollection collection = (StudentInformationCollection)gui_studentListBox.DataContext;
StudentInformation target = (StudentInformation)MyGrid.DataContext;
StudentInformation source = collection[gui_studentListBox.SelectedIndex];
target.Name = source.Name;
target.City = source.City;
}
}
private void Delete_Click(object sender, RoutedEventArgs e)
{
if (gui_studentListBox.SelectedItem != null)
{
StudentInformationCollection collection = (StudentInformationCollection)gui_studentListBox.DataContext;
collection.Remove((StudentInformation)gui_studentListBox.SelectedItem);
}
}
private void Update_Click(object sender, RoutedEventArgs e)
{
StudentInformationCollection collection = (StudentInformationCollection)gui_studentListBox.DataContext;
StudentInformation target = collection[gui_studentListBox.SelectedIndex];
StudentInformation source = (StudentInformation)MyGrid.DataContext;
target.Name = source.Name;
target.City = source.City;
}
private void gui_studentListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (gui_studentListBox.SelectedIndex >= 0)
{
StudentInformationCollection collection = (StudentInformationCollection)gui_studentListBox.DataContext;
StudentInformation target = (StudentInformation)MyGrid.DataContext;
StudentInformation source = collection[gui_studentListBox.SelectedIndex];
target.Name = source.Name;
target.City = source.City;
}
}
private void Event_Click(object sender, RoutedEventArgs e)
{
for (int i = 0; i < gui_studentListBox.Items.Count; i++)
{
StudentInformation item = (StudentInformation)gui_studentListBox.Items[i];
ListBoxItem lbi = (ListBoxItem)gui_studentListBox.ItemContainerGenerator.ContainerFromItem(item);
lbi.MouseDoubleClick += new MouseButtonEventHandler(lbi_MouseDoubleClick);
}
}
void lbi_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
ListBoxItem item = (ListBoxItem) sender;
StudentInformation student = (StudentInformation) item.Content;
MessageBox.Show(student.ToString(), "Run time inserted event");
}
}
public class StudentInformationCollection : ObservableCollection<StudentInformation>
{
}
public class StudentInformation : INotifyPropertyChanged
{
public string _name;
public string _city;
public event PropertyChangedEventHandler PropertyChanged;
protected void NotifyPropertyChanged(string property)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(property));
}
}
public string Name
{
get
{
return _name;
}
set
{
_name = value; NotifyPropertyChanged("Name");
}
}
public string City
{
get
{
return _city;
}
set
{
_city = value; NotifyPropertyChanged("City");
}
}
public override string ToString()
{
return Name + " " + City;
}
}
}
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