右键点击网格行 [英] right click on grid row

问题描述

问题是，每当网格的行右键单击所选项目时，都会为null。如果任何行被右击，我是否会选择网格的行？

problem is , that whenever the grid's row is right clicked the selected item is null.how do i make a the grid's row selected when any row was right clicked?

感谢
Jamal

thanks Jamal

推荐答案

可能有问题。每次加载一行时，它将添加一个事件处理程序，因此如果该行被重用，它可以累积事件处理程序。我建议删除行卸载时的事件处理程序。这是我建议的代码：

I think the solution may have a problem. Every time a row is loaded it will add an event handler, so if the row is ever reused it can accumulate event handlers. I would recommend removing the event handler when the row is unloaded. Here's my suggested code:

private void dg_LoadingRow(object sender, DataGridRowEventArgs e)
{
    e.Row.MouseRightButtonDown += new MouseButtonEventHandler(Row_MouseRightButtonDown);
}
void Row_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
    dg.SelectedItem = ((sender) as DataGridRow).DataContext;
}
// new portion
private void dg_UnloadingRow(object sender, DataGridRowEventArgs e)
{
    e.Row.MouseRightButtonDown -= new MouseButtonEventHandler(Row_MouseRightButtonDown);
}

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