[英]Open WPF Popup on TextBox focus
I want to open a popup when the focus is on a text box Here is the code I wrote : 当焦点在文本框上时,我想打开一个弹出窗口这是我写的代码:
<Window x:Class="Testpopup.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<StackPanel>
<TextBox x:Name="text" GotKeyboardFocus="text_GotKeyboardFocus" />
<Button Click="Button_Click" Content="but"/>
<Popup x:Name="popup" Width="100" Height="100" PlacementTarget="{Binding ElementName=text}"
StaysOpen="False">
<Grid>
<StackPanel>
<DatePicker />
<TextBox />
</StackPanel>
</Grid>
</Popup>
</StackPanel>
</Grid>
private void Button_Click(object sender, RoutedEventArgs e)
{
popup.IsOpen = true;
}
private void text_GotKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e)
{
popup.IsOpen = true;
}
If I Click on the button everything works fine If I Click on the text box the popup open and close 如果我单击按钮一切正常如果我单击文本框弹出打开和关闭
If I remove StaysOpen="False" the popup open but never close 如果我删除StaysOpen =“False”弹出窗口打开但从不关闭
I try to set the focus on the popup before opening it but it does not work as well 我尝试在打开它之前将重点放在弹出窗口上,但它也不起作用
Do you have any idea ? 你有什么主意吗 ?
Many thanks, Nidal. 非常感谢,Nidal。
Add the following binding to your Popup-declaration: 将以下绑定添加到Popup声明:
StaysOpen="{Binding ElementName=text,Path=IsKeyboardFocused}"
This should do the trick. 这应该可以解决问题。
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