我有7种不同的ListView。
有一种称为SortClick(object sender, RoutedEventArgs e)
的Sortmethod -
单击GridViewColumnHeader时,它会引发SortClick事件。
但是在这个方法中我必须告诉,哪个ListView应该被排序,b.e
listview2.SortNow();
现在我的问题是,如何从GridViewColumnHeader(sender
)或e
获取Control(ListView),甚至是可能的?
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));
}
答案 0 :(得分:4)
当你说SortClick事件时,我不太清楚你是什么意思,但我想你的意思是你的GridViewColumnHeader.Click
处理程序附带的SortClick
事件。
如果您将GridViewColumnHeader.Click
添加到ListViews中,请执行以下操作:
<ListView GridViewColumnHeader.Click="SortClick">
您将获得事件处理程序的ListView
参数中的sender
控件以及GridViewColumnHeader
中的e.OriginalSource
。
为清晰起见编辑。在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;
答案 1 :(得分:2)
我会选择克莱门斯的解决方案,但如果它不是你的选择,你也可以走在可视树上找到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);