2

我有 7 个不同的 ListView。

有一个称为 Sortmethod 的方法SortClick(object sender, RoutedEventArgs e)- 单击 GridViewColumnHeader 时，它会引发 SortClick 事件。

但在这种方法中，我必须告诉，应该对哪个 ListView 进行排序，是

listview2.SortNow();

现在我的问题是，我怎样才能从 GridViewColumnHeader ( sender) 或从 GridViewColumnHeader ( ) 中获取控件 (ListView) e，这甚至可能吗？

ListView XAML 的外观如下：

<ListView ItemsSource="{Binding MissingTables}" Name="missingTablesListView" HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="0" MinHeight="540" HorizontalContentAlignment="Stretch">
                    <ListView.Background>
                        <ImageBrush />
                    </ListView.Background>
                    <ListView.View>
                        <GridView>
                            <GridViewColumn DisplayMemberBinding="{Binding TableName}" Width="Auto">
                                <GridViewColumnHeader Click="SortClick" Content="TableName" Tag="TableName" ToolTip="Sortieren" />
                            </GridViewColumn>   
                            <GridViewColumn DisplayMemberBinding="{Binding Beschreibung}" Width="Auto">
                                <GridViewColumnHeader Click="SortClick" Content="Description" Tag="Beschreibung" ToolTip="Sortieren" />
                            </GridViewColumn>
                        </GridView>
                    </ListView.View>
                </ListView>

这是 SortClick 代码：

        /// <summary>
        /// Sortiert (Ascending/Descending)
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">e</param>
        private void SortClick(object sender, RoutedEventArgs e)
        {       
            //ListView listView = sender as ListView;

            GridViewColumnHeader column = sender as GridViewColumnHeader;
            String field = column.Tag as String;

            if (currentSortColumn != null)
            {
                AdornerLayer.GetAdornerLayer(currentSortColumn).Remove(sorter);
                listView.Items.SortDescriptions.Clear();
            }

            ListSortDirection newDir = ListSortDirection.Ascending;
            if (currentSortColumn == column && sorter.Direction == newDir)
            {
                newDir = ListSortDirection.Descending;
            }

            currentSortColumn = column;
            sorter = new Sorter(currentSortColumn, newDir);
            AdornerLayer.GetAdornerLayer(currentSortColumn).Add(sorter);
            listView.Items.SortDescriptions.Add(new SortDescription(field, newDir));
        }
4

2 回答 2

5

当您说 SortClick 事件时，我不太确定您的意思，但我猜您的意思是附加GridViewColumnHeader.Click了处理程序的事件。SortClick

如果您GridViewColumnHeader.Click像这样添加到 ListViews：

<ListView GridViewColumnHeader.Click="SortClick">

您将在事件处理程序ListView的参数中获得控制权，并且在.senderGridViewColumnHeadere.OriginalSource

为清楚起见进行编辑。在您的SortClick处理程序中，您将像这样访问控件：

ListView listView = sender as ListView;
GridViewColumnHeader header = e.OriginalSource as GridViewColumnHeader;
于 2012-02-06T09:49:44.660 回答
2

我会选择 Clemens 的解决方案，但如果它不适合您，您也可以沿着可视化树查找 ListView：

    static T FindAncestor<T>(DependencyObject obj) where T : DependencyObject
    {
        var tmp = VisualTreeHelper.GetParent(obj);
        while (tmp != null && !(tmp is T))
        {
            tmp = VisualTreeHelper.GetParent(tmp);
        }
        return (T)tmp;
    }

    ...

    var listView = FindAncestor<ListView>(columnHeader);
于 2012-02-06T10:26:34.500 回答