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。我已经读过你可以通过检查事件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,数据是字典,因此EditingElement是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.
内容是原始内容,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);
}
2 个解决方案
#1
5
I took the approach of having my row data objects inherit from IEditableObject. I handle the updated value in the EndEdit() interface method
我采用了让我的行数据对象继承自IEditableObject的方法。我在EndEdit()接口方法中处理更新的值
#2
2
Try to bind into NotifyOnTargetUpdated - hope this is what you are looking for
尝试绑定到NotifyOnTargetUpdated - 希望这是你正在寻找的
<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>
#1
5
I took the approach of having my row data objects inherit from IEditableObject. I handle the updated value in the EndEdit() interface method
我采用了让我的行数据对象继承自IEditableObject的方法。我在EndEdit()接口方法中处理更新的值
#2
2
Try to bind into NotifyOnTargetUpdated - hope this is what you are looking for
尝试绑定到NotifyOnTargetUpdated - 希望这是你正在寻找的
<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>