WPF 视图导航

<Window x:Class="ViewExam.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded_1">
<Grid>
<Grid.RowDefinitions>
<RowDefinition></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<Grid Grid.Row="0">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock>Model Number</TextBlock>
<TextBox Text="{Binding Path=ModelNumber}" Grid.Column="1"></TextBox>
<TextBlock Grid.Row="1">Model Name</TextBlock>
<TextBox Text="{Binding Path=ModelName}" Grid.Column="1" Grid.Row="1"></TextBox>
<TextBlock Grid.Row="2">Unit Cost</TextBlock>
<TextBox Text="{Binding Path=UnitCost}" Grid.Column="1" Grid.Row="2"></TextBox>
<TextBlock Grid.Row="3">Description</TextBlock>
<TextBox Text="{Binding Path=Description}" TextWrapping="Wrap" Grid.Row="5" Grid.ColumnSpan="2"></TextBox>
</Grid>
<StackPanel Grid.Row="1" Orientation="Horizontal">
<Button Name="btnPrevious" Click="btnPrevious_Click_1">previous</Button>
<Label x:Name="lblPosition" Width="400"></Label>
<Button Name="btnNext" Click="btnNext_Click_1">Next</Button>
</StackPanel>
</Grid>
</Window>

using DBAccess;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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;

namespace ViewExam
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}

private ListCollectionView view;

private void Window_Loaded_1(object sender, RoutedEventArgs e)
{
ICollection<Product> products = StoreDB.GetProducts();
this.DataContext = products;
view = (ListCollectionView)CollectionViewSource.GetDefaultView(products);

view.CurrentChanged += view_CurrentChanged;
view_CurrentChanged(this, null);

}

void view_CurrentChanged(object sender, EventArgs e)
{
lblPosition.Content = "Record " + (view.CurrentPosition + 1).ToString() + " of " + view.Count.ToString();
btnPrevious.IsEnabled = view.CurrentPosition > 0;
btnNext.IsEnabled = view.CurrentPosition < view.Count - 1;
}

private void btnPrevious_Click_1(object sender, RoutedEventArgs e)
{
view.MoveCurrentToPrevious();
}

private void btnNext_Click_1(object sender, RoutedEventArgs e)
{
view.MoveCurrentToNext();
}
}
}

巴特西

WPF 视图导航

最新文章

热门文章