[英]Databinding in WPF DataGrid (C# 4.0)
我只是在玩WPF,並且在數據綁定方面遇到了問題...
到目前為止,這是我的代碼...
Window XAML:
<Window x:Class="FRC.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Registry Cleaner - By Martin Milan." MinHeight ="350" Height ="350" MinWidth="525" MaxHeight="700" Width="350" Background="#FFC199AA" >
<DockPanel Background="#FFD9E1E8" Margin="10">
<Grid DockPanel.Dock="Top" >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="100" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition />
</Grid.RowDefinitions>
<Label Grid.Column="0" Grid.Row="0" HorizontalAlignment="Right" >Filepath:</Label>
<TextBox Grid.Column="1" HorizontalAlignment="Stretch" Name="txtFilePath" VerticalAlignment="Stretch" />
</Grid>
<StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal" HorizontalAlignment="Right" >
<Button Name="butScan" Content="Scan" MinWidth="75" Margin="0,0,10,5" />
<Button Name="butDelete" Content="Remove RegKeys" Margin="0,0,5,5" Click="butDelete_Click" />
</StackPanel>
<ScrollViewer Margin="0,0,0,5">
<DataGrid AutoGenerateColumns="False" Name="dgActions" CanUserAddRows="False" CanUserDeleteRows="False" >
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding RegKeyPath, Mode=OneWay}" Header="Registry Key" Width="*"/>
<DataGridCheckBoxColumn Binding="{Binding DeletePath, Mode=TwoWay}" Header="Can I delete key?"
MinWidth="110" Width="110" />
</DataGrid.Columns>
</DataGrid>
</ScrollViewer>
</DockPanel>
</Window>
該窗口后面的代碼:
namespace FRC
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
protected List<RegistryAction> mRegistryActions = new List<RegistryAction>();
public MainWindow()
{
InitializeComponent();
RegistryAction oRegAction = new RegistryAction();
oRegAction.DeletePath = true;
oRegAction.RegKeyPath = "A test value";
mRegistryActions.Add (oRegAction);
dgActions.DataContext = mRegistryActions;
dgActions.ItemsSource = mRegistryActions;
}
private void butDelete_Click(object sender, RoutedEventArgs e)
{
RegistryAction oRegAction = new RegistryAction();
oRegAction.DeletePath = true;
Random rGen = new Random();
oRegAction.RegKeyPath = "A test " + rGen.Next(100).ToString();
mRegistryActions.Add(oRegAction);
}
}
}
RegistryAction類:
namespace FRC
{
public class RegistryAction
{
public string RegKeyPath { get; set; }
public bool DeletePath { get; set; }
public RegistryAction()
{
this.DeletePath = false;
this.RegKeyPath = "";
}
}
}
基本上。 它設置了RegistryAction對象的列表,並將其與DataGrid綁定。 但是我發現,每當我在butDelete_Click中運行代碼時,盡管列表已更新,但內容並未在Grid上更新。
簡而言之,任何人都可以發現我錯過的東西嗎?
馬丁。
mRegistryActions
應該是ObservableCollection
:
protected ObservableCollection<RegistryAction> mRegistryActions = new ObservableCollection<RegistryAction>();
您需要具有RegistryAction
實現INotifyPropertyChanged
。 MSDN也有關於此主題的方法 。
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