在DataGrid（WPF）中編輯單元格

Question

我是WPF的新手。 我曾經在Winforms中工作。

在Winforms中，當我想要一個單元格值時，我有DataGridView可以更改。

只需使用：

dataGridView[columnIndex, rowIndex].Value = "New Value";

有用。

如何使用WPF中的DataGrid完成此操作？ 我一直在看待堆積如山的東西，可以想出一個簡單的方法來做到這一點。

謝謝

Answer 1

好的，處理DataGrid的最簡單方法是綁定到ItemSource 。

下面的示例顯示了如何綁定列表以及如何更改數據網格。

public partial class MainWindow : Window
{
    private ObservableCollection<ConnectionItem> _connectionitems = new ObservableCollection<ConnectionItem>();

    public MainWindow()
    {
        InitializeComponent();
        ConnectionItems.Add(new ConnectionItem { Name = "Item1", Ping = "150ms" });
        ConnectionItems.Add(new ConnectionItem { Name = "Item2", Ping = "122ms" });
    }

    public ObservableCollection<ConnectionItem> ConnectionItems
    {
        get { return _connectionitems; }
        set { _connectionitems = value; }
    }

    private void button1_Click(object sender, RoutedEventArgs e)
    {
        // to change a value jus find the item you want in the list and change it
        // because your ConnectionItem class implements INotifyPropertyChanged
        // ite will automaticly update the dataGrid

        // Example
        ConnectionItems[0].Ping = "new ping :)";
    }
}

public class ConnectionItem : INotifyPropertyChanged
{
    private string _name;
    private string _ping;

    public string Name
    {
        get { return _name; }
        set { _name = value; NotifyPropertyChanged("Name"); }
    }

    public string Ping
    {
        get { return _ping; }
        set { _ping = value; NotifyPropertyChanged("Ping"); }
    }

    public event PropertyChangedEventHandler PropertyChanged;
    /// <summary>
    /// Notifies the property changed.
    /// </summary>
    /// <param name="property">The info.</param>
    public void NotifyPropertyChanged(string property)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(property));
        }
    }
}

XAML：

<Window x:Class="WpfApplication4.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WpfApplication4"
        xmlns:properties="clr-namespace:WpfApplication4.Properties"
        Title="MainWindow" Height="300" Width="400" Name="UI" >
    <Grid>
        <DataGrid Name="dataGridView" ItemsSource="{Binding ElementName=UI,Path=ConnectionItems}" Margin="0,0,0,40" />
        <Button Content="Change" Height="23" HorizontalAlignment="Left" Margin="5,0,0,12" Name="button1" VerticalAlignment="Bottom" Width="75" Click="button1_Click" />
    </Grid>
</Window>

我添加了一個按鈕來顯示在列表中進行某些更改時數據如何更新，在ConnectionItem類中，您將存儲數據網格的所有信息。

希望這可以幫助