我需要有一种在排序事件的一个的 的DataGrid 在WPF应用程序，但无法找到一个方法来得到它。

I need to have kind of an Sorted event for a DataGrid in a WPF application but cannot find a way to get it.

下面是我的尝试：

在的DataGrid 提供了一个事件的 排序 ，但我不能使用它，因为它是打响了排序完成之前。该 EventArgs的给我这是排序的列，但不是它的排序方式，如果我得到的排序方向设置为原来的值。当然，我可以猜出它会为我知道，它翻转从无到上升并最终下降，但是这将是无解的，因为它会失败，如果控制的行为变化。

The DataGrid provides an event Sorting, but I cannot use it as it is fired before the sorting is done. The EventArgs give me the column which is sorted but not the way it is sorted and if I get the sort direction it is set to the old value. Of course I could guess what it will be as I know that it flips from none to ascending and finally to descending but that would be no solution as it would fail if the behavior of the control changes.

第二个尝试：

在的DataGrid 有一个默认视图，它提供了访问的 SortDescriptionCollection 。这个系列拥有所有排序属性，但我没有看到让我告知任何变化的可能性。

The DataGrid has a default view which provides access to a SortDescriptionCollection. This collection holds all sorting properties but I don't see any possibility to let me inform about changes.

我不得不说，我正在寻找一个解决方案，尽可能的干净，因为它会在大型项目中使用上，我不能使用，如果环境的变化，这可能会失败的解决方案。

I have to say that I'm looking for a solution as clean as possible as it will be used in a large project on which I can't use solutions which could fail if the environment changes.

有谁从经验（或文件？）我怎么能解决这个问题，知道吗？

Does anyone know from experience (or documentation?) how I could solve this problem?

编辑：为了更清楚我想要实现：我需要了解哪些的DataGrid 列按哪个方向时，用户排序的列。这是没有必要这信息来排序本身后，它只是是正确的;）

To make more clear what I want to achieve: I need to get informed which DataGrid column is sorted in which direction when a user sort a column. It is not necessary that this information comes after the sorting itself, it just has to be correct ;)

推荐答案

我实现了排序DataGrid的事件我通过重写DataGrid中，如下所示：

I implemented the Sorted for the DataGrid event myself by overriding the DataGrid as follows:

public class ValueEventArgs<T> : EventArgs
{
    public ValueEventArgs(T value)
    {
        Value = value;
    }

    public T Value { get; set; }

}

public class DataGridExt : DataGrid
{
    public event EventHandler<ValueEventArgs<DataGridColumn>> Sorted;

    protected override void OnSorting(DataGridSortingEventArgs eventArgs)
    {
        base.OnSorting(eventArgs);

        if (Sorted == null) return;
        var column = eventArgs.Column;
        Sorted(this, new ValueEventArgs<DataGridColumn>(column));
    }
}

为了使用它那么所有你需要做的是这样的：

In order to use it then all you need to do is this:

    private void Initialize()
    {
            myGrid.Sorted += OnSorted;
    }
    private void OnSorted(object sender, ValueEventArgs<DataGridColumn> valueEventArgs)
    {
    // Persist Sort...
    }