WPF应用程序在获取数据和刷新DataGrids时冻结

private async void LoadDataButton_Click(object sender, RoutedEventArgs e)
{
    await Task.Run(() => FetchData());
}

private void FetchData()
{
    // 模拟耗时操作
    Thread.Sleep(2000);
    
    // 更新UI
    Dispatcher.Invoke(() =>
    {
        dataGrid.ItemsSource = fetchedData; // 假设fetchedData是获取到的数据集合
    });
}

private void UpdateDataGrid()
{
    Dispatcher.Invoke(() =>
    {
        dataGrid.ItemsSource = updatedData; // 假设updatedData是更新后的数据集合
    });
}

<DataGrid x:Name="dataGrid" AutoGenerateColumns="True" ItemsSource="{Binding DataCollection}" />

public ObservableCollection<YourDataType> DataCollection { get; set; }

public YourViewModel()
{
    DataCollection = new ObservableCollection<YourDataType>();
}

<DataGrid x:Name="dataGrid" VirtualizingPanel.IsVirtualizing="True" VirtualizingPanel.VirtualizationMode="Recycling" />