文本框未聚焦时如何突出显示Wpf中的文本?(.NET 4.0)
问问题
990 次
2 回答
0
您可以将 Style 与 EventTrigger 一起用于 TextBox.LostFocus/GotFoxus 事件。
当“LostFocus”为“true”时,这会将 TextBox 前景更改为红色,延迟 1 秒
<Style x:Key="tboxStandard"
TargetType="{x:Type TextBox}">
<Setter Property="BorderThickness"
Value="2" />
<Setter Property="BorderBrush"
Value="#292929" />
<Setter Property="Background"
Value="#E9E9E9" />
<Setter Property="TextAlignment"
Value="Center" />
<Setter Property="Foreground"
Value="#191919" />
<Style.Triggers>
<EventTrigger RoutedEvent="TextBox.GotFocus">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Storyboard.TargetProperty="(TextBox.Foreground).(SolidColorBrush.Color)"
To="#191919"
Duration="0:0:1" />
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
<EventTrigger RoutedEvent="TextBox.LostFocus">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Storyboard.TargetProperty="(TextBox.Foreground).(SolidColorBrush.Color)"
To="Red"
Duration="0:0:1" />
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</Style.Triggers>
于 2013-03-21T15:42:00.900 回答
0
如果您处理 TextBox 的 LostFocus 事件,则可以使用以下代码选择 TextBox 的内容:
textBox.SelectAll();
e.Handled = true;
于 2013-03-21T10:31:23.393 回答