仅在单击 DataGrid 行时执行 WPF MouseDoubleClick 事件
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Only execute WPF MouseDoubleClick event when DataGrid row is clicked
提问by álvaro García
I have a DataGrid in WPF. When I double-click on a row, a query to a database should be executed.
我在 WPF 中有一个 DataGrid。当我双击一行时，应该执行对数据库的查询。
This DataGrid has horizontal and vertical scroll bars, and I notice that when I click quickly on the arrow button of one of the scroll bars, it sends the query to the database.
此 DataGrid 具有水平和垂直滚动条，我注意到当我快速单击其中一个滚动条的箭头按钮时，它会将查询发送到数据库。
The problem is that I am using the DataGrid's MouseDoubleClickevent, so the scroll bars belong the the DataGrid, and when they are double-clicked, this event is raised.
问题是我使用的是DataGrid 的MouseDoubleClick事件，所以滚动条属于DataGrid，当它们被双击时，会引发此事件。
Is there any way to execute the double click event only when I double click on a row of the DataGrid and not when I double-click on part of the scroll bars?
只有当我双击 DataGrid 的一行而不是双击滚动条的一部分时，有什么方法可以执行双击事件吗？
回答by Eirik
In your MouseDoubleClick event try doing this:
在您的 MouseDoubleClick 事件中尝试这样做：
private void DataGridMouseDoubleClick(object sender, MouseButtonEventArgs e)
{
DependencyObject src = VisualTreeHelper.GetParent((DependencyObject)e.OriginalSource);
// Checks if the user double clicked on a row in the datagrid [ContentPresenter]
if (src.GetType() == typeof(ContentPresenter))
{
// Your logic..
}
}
回答by LPL
Yes, register the event in RowStyle.
是的，在RowStyle.
<DataGrid.RowStyle>
<Style TargetType="{x:Type DataGridRow}">
<EventSetter Event="PreviewMouseDoubleClick" Handler="Row_PreviewMouseDoubleClick" />
</Style>
</DataGrid.RowStyle>
