wpf 如何在datagrid wpf上双击找到标题或行
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/12928049/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to find either header or row is double clicked on datagrid wpf
提问by fhnaseer
I added a datagrid in a wpf application.
我在 wpf 应用程序中添加了一个数据网格。
<DataGrid ItemsSource="{Binding Projects}" SelectedItem="{Binding SelectedProject}" MouseDoubleClick="DataGrid_MouseDoubleClick" />
and here is my code behind
这是我的代码
private void DataGrid_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
if selected row is header
then do this
else
do this
}
Now question is how I came to know which one is double clicked. It is header or a row. How I can find it out.
现在的问题是我是如何知道双击的是哪个的。它是标题或一行。我怎样才能找到它。
回答by fhnaseer
Instead of adding double click event in DataGrid, add sperate event for DataGridRow and DataGridColumnHeader. Updated XAML:
不是在 DataGrid 中添加双击事件，而是为 DataGridRow 和 DataGridColumnHeader 添加 sperate 事件。更新的 XAML：
<DataGrid ItemsSource="{Binding Projects}" SelectedItem="{Binding SelectedProject}" MouseDoubleClick="DataGrid_MouseDoubleClick">
<DataGrid.Resources>
<Style TargetType="DataGridRow">
<EventSetter Event="MouseDoubleClick" Handler="DataGridRow_MouseDoubleClick" />
</Style>
</DataGrid.Resources>
<DataGrid.Resources>
<Style TargetType="DataGridColumnHeader">
<EventSetter Event="MouseDoubleClick" Handler="DataGridColumnHeader_MouseDoubleClick" />
</Style>
</DataGrid.Resources>
</DataGrid>
And here is code behind.
这是后面的代码。
private void DataGridRow_MouseDoubleClick(object sender, System.Windows.RoutedEventArgs e)
{
// This is when a row is double clicked.
}
private void DataGridColumnHeader_MouseDoubleClick(object sender, System.Windows.RoutedEventArgs e)
{
// This is when header is double clicked.
}
回答by Vale
You can use VisualTreeHelper:
您可以使用 VisualTreeHelper：
private void DataGrid_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
var dep = e.OriginalSource as DependencyObject;
//go up the tree until you find the header
while (dep != null && !(dep is DataGridRowHeader)) {
dep = VisualTreeHelper.GetParent(dep);
}
//header found
if (dep is DataGridRowHeader)
//do this
else //header not found
//do that
}
