wpf -选择日期范围并生成列标题

<StackPanel>
    <DatePicker x:Name="startDatePicker" SelectedDate="{Binding StartDate}" />
    <DatePicker x:Name="endDatePicker" SelectedDate="{Binding EndDate}" />
    <Button Content="生成列标题" Click="GenerateColumnHeaders_Click" />
</StackPanel>

public class DateRangeModel : INotifyPropertyChanged
{
    private DateTime _startDate;
    private DateTime _endDate;

    public DateTime StartDate
    {
        get { return _startDate; }
        set
        {
            _startDate = value;
            OnPropertyChanged(nameof(StartDate));
        }
    }

    public DateTime EndDate
    {
        get { return _endDate; }
        set
        {
            _endDate = value;
            OnPropertyChanged(nameof(EndDate));
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;

    protected virtual void OnPropertyChanged(string propertyName)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}

private void GenerateColumnHeaders_Click(object sender, RoutedEventArgs e)
{
    DateTime startDate = startDatePicker.SelectedDate ?? DateTime.MinValue;
    DateTime endDate = endDatePicker.SelectedDate ?? DateTime.MaxValue;

    if (startDate <= endDate)
    {
        dataGrid.Columns.Clear();

        for (DateTime date = startDate; date <= endDate; date = date.AddDays(1))
        {
            DataGridTextColumn column = new DataGridTextColumn();
            column.Header = date.ToString("yyyy-MM-dd");
            column.Binding = new Binding($"[{date.ToString("yyyy-MM-dd")}]");
            dataGrid.Columns.Add(column);
        }
    }
}