如何获取父级的DataContext [英] How to get parent's DataContext
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问题描述
iv'e得到一个 ListBox ,该列表框绑定到播放器列表,列表框的父
作为具有播放器属性的数据文本。 p>
iv'e got a ListBox which is bound to a list of Player , the listbox's parent as a datacontext with a property of Players .
<ListBox>
<ListBox.Items>
<Binding Path="Players"></Binding>
</ListBox.Items>
<DataTemplate>
<ListBoxItem>
<TextBlock Text="{Binding Name}"></TextBlock>
<Button ToolTip="Invite To Play" x:Name="btn_InviteToPlay" Click="btn_InviteToPlay_Click>
</ListBoxItem>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox>
在按钮上单击事件我需要获取绑定到此
listboxitem(包含点击的按钮的一个)的 Player 的值
on the buttons click event i need to get the value of Player that is bound to this listboxitem (the one containing the button which was clicked )
private void btn_InviteToPlay_Click(object sender, RoutedEventArgs e)
{
Button btn = (Button)sender;
// how to retrieve player bound to current listboxitem ?
}
推荐答案
btn。 DataContext
应该已经包含 Player
,因为 DataContext
由 ListBoxItem
。
btn.DataContext
should already contain the Player
as the DataContext
is inherited by controls in the ListBoxItem
.
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