DataGrid LoadingRow事件未触发 [英] DataGrid LoadingRow event not firing

问题描述

我正在尝试在datagrid行中捕获鼠标左键单击，但是LoadingRow事件从不触发.但是，UnloadingRow事件确实会触发，因此我不确定我缺少什么.

I am trying to capture a left mouse click in a datagrid row, but the LoadingRow event never fires. However, the UnloadingRow event does fire, so I am not sure what I am missing.

private DataGrid _gdShortNoticeOrders;

partial void ShortNotice_Created()
{
  this.FindControl("gdShortNoticeOrders").ControlAvailable += new EventHandler<ControlAvailableEventArgs>(gdShortNoticeOrders_ControlAvailable);
}

private void gdShortNoticeOrders_ControlAvailable(object sender, ControlAvailableEventArgs e)
{
  _gdShortNoticeOrders = e.Control as DataGrid;

  if (_gdShortNoticeOrders == null)
    return;

  _gdShortNoticeOrders.LoadingRow += _gdShortNoticeOrders_LoadingRow;
  _gdShortNoticeOrders.UnloadingRow += _gdShortNoticeOrders_UnloadingRow;
}

private void _gdShortNoticeOrders_LoadingRow(object sender, DataGridRowEventArgs e)
{
  // This never executes!
  e.Row.MouseLeftButtonUp += new MouseButtonEventHandler(_gdShortNoticeOrdersRow_MouseLeftButtonUp);
}

private void _gdShortNoticeOrders_UnloadingRow(object sender, DataGridRowEventArgs e)
{
  // This fires when screen is closed.
  e.Row.MouseLeftButtonUp -= new MouseButtonEventHandler(_gdShortNoticeOrdersRow_MouseLeftButtonUp); 
}

private void _gdShortNoticeOrdersRow_MouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
  // Custom code here...but it never runs because the LoadingRow event never fires
}

推荐答案

我遇到了同样的问题.以我为例，这种情况发生在从SQL Server视图加载数据的DataGrid上. (我的意思是，与其关联的实体是SQL Server中的一个视图.)

I am having the same problem. This happens, in my case, on a DataGrid that loads data from a SQL Server view. (I mean, the entity associated with it is a view in SQL Server).

当数据网格正在从表的集合中加载数据时，事件将正确触发.

The events fire correctly when the datagrid is loading data from a collection of a table.

现在，我想找出我可以使用的其他事件，因为我找不到任何有用的东西.

Now I'd like to find out which other event I may use, as I cannot find any useful.

乔瓦尼

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