WPF DataGrid - 编辑结束后单元格的新值
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/28156929/
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
WPF DataGrid - cell's new value after edit ending
提问by jchristof
In my system I need to capture and send the old and new value of a cell edit. I've read that you can do this by inspecting the EditingElement of the event DataGridCellEditEndingEventArgs like this:
在我的系统中，我需要捕获并发送单元格编辑的旧值和新值。我读过你可以通过像这样检查事件 DataGridCellEditEndingEventArgs 的 EditingElement 来做到这一点：
_dataGrid.CellEditEnding += (sender, e) => {
var editedTextbox = e.EditingElement as TextBox;
if (editedTextbox != null)
MessageBox.Show("Value after edit: " + editedTextbox.Text);
}
In my case, the data is a dictionary so the EditingElement is a ContentPresenter
在我的例子中，数据是一个字典，所以 EditingElement 是一个 ContentPresenter
var editedTextbox = e.EditingElement as ContentPresenter;
if (editedTextbox != null)
MessageBox.Show("Value after edit: " + editedTextbox.Content);
and the Content is the original, not the new edited value.
并且内容是原始值，而不是新编辑的值。
How can I get this to work:
我怎样才能让它工作：
_dataGrid.SomeEvent(sender, e)->{
SendValues(e.oldCellValue, e.newCellValue);
}
采纳答案by jchristof
I took the approach of having my row data objects inherit from IEditableObject. I handle the updated value in the EndEdit() interface method
我采用了从 IEditableObject 继承行数据对象的方法。我在 EndEdit() 接口方法中处理更新的值
回答by Gilad
Try to bind into NotifyOnTargetUpdated - hope this is what you are looking for
尝试绑定到 NotifyOnTargetUpdated - 希望这是您正在寻找的
<DataGrid Name="datagrid" AutoGenerateColumns="False" VirtualizingStackPanel.IsVirtualizing="True" VirtualizingStackPanel.VirtualizationMode="Recycling">
<DataGrid.Columns>
<DataGridTextColumn Header="Title" Binding="{Binding Path=Name,NotifyOnTargetUpdated=True}" Width="300">
<DataGridTextColumn.EditingElementStyle>
<Style TargetType="{x:Type TextBox}">
<EventSetter Event="LostFocus" Handler="Qty_LostFocus" />
<EventSetter Event="TextChanged" Handler="TextBox_TextChanged" />
<EventSetter Event="Binding.TargetUpdated" Handler="DataGridTextColumn_TargetUpdated"></EventSetter>
</Style>
</DataGridTextColumn.EditingElementStyle>
</DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
