排序WPF数据网格编程 [英] Sort a wpf datagrid programmatically

问题描述

有没有一种方法，以一个WPF DataGrid的排序programmaticaly（例如，就像如果我点击我的第一列）。

Is there a way to sort a WPF DataGrid programmaticaly ( for example, like if i clicked on my first column).

有没有办法来simuate这个点击？还是最好的方法是什么？

Is there a way to simuate this click ? Or a best way ?

这是我的code：

Collection_Evenements = new ObservableCollection<Evenement>();

Collection_Evenements = myEvenement.GetEvenementsForCliCode(App.obj_myClient.m_strCode);
Collection_Evenements.CollectionChanged += Collection_Evenements_CollectionChanged;
myDataGridEvenements.ItemsSource = Collection_Evenements;

System.Data.DataView dv = (System.Data.DataView)myDataGridEvenements.ItemsSource;
dv.Sort = "strEvtType";

myDataGridEvenements.Focus();
myDataGridEvenements.SelectedIndex = 0;
myDataGridEvenements.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));

我不知道为什么，但行dv.Sort =strEvtType;导致一个奇怪的东西，我的窗口出现了，程序不继续执行下一行，但我没有看到的那种！

I don't know why, but the line "dv.Sort = "strEvtType";" cause a strange thing, my Window Show up and the programme don't continue to execute the next lines, nevertheless i don't see the sort !

感谢了很多，

最好的问候，

Nixeus

推荐答案

VOO的解决方案并没有为我工作，的ItemsSource 为空，最有可能的，因为它不直接设置，但约束。 所有其他解决方案，我发现这里的计算器正在处理只排序模式，但的DataGrid 头并没有反映到排序。

voo's solution was not working for me, ItemsSource was null, most likely because it was not directly set, but bound. All other solutions I found here at StackOverflow were dealing with sorting the Model only, but the DataGrid header was not reflecting to the sort.

下面是一个基于位置的不完整的脚本一个妥善的解决办法：<一href="http://dotnetgui.blogspot.co.uk/2011/02/how-to-properly-sort-on-wpf-datagrid.html">http://dotnetgui.blogspot.co.uk/2011/02/how-to-properly-sort-on-wpf-datagrid.html

Here's a proper solution based on the incomplete script here: http://dotnetgui.blogspot.co.uk/2011/02/how-to-properly-sort-on-wpf-datagrid.html

public static void SortDataGrid(DataGrid dataGrid, int columnIndex = 0, ListSortDirection sortDirection = ListSortDirection.Ascending)
{
    var column = dataGrid.Columns[columnIndex];

    // Clear current sort descriptions
    dataGrid.Items.SortDescriptions.Clear();

    // Add the new sort description
    dataGrid.Items.SortDescriptions.Add(new SortDescription(column.SortMemberPath, sortDirection));

    // Apply sort
    foreach (var col in dataGrid.Columns)
    {
        col.SortDirection = null;
    }
    column.SortDirection = sortDirection;

    // Refresh items to display sort
    dataGrid.Items.Refresh();
}

如果你的code，它可以是这样的：

In case of your code, it can be used like this:

SortDataGrid(myDataGridEvenements, 0, ListSortDirection.Ascending);

或使用默认参数值，简单地说：

Or by using the default parameter values, simply:

SortDataGrid(myDataGridEvenements);

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