WPF中TextBox实现搜索框

来源：互联网发布：excel数据有效性空格编辑：程序博客网时间：2024/04/30 11:27

        <TextBox x:Name="SearchBox"  TabIndex="0" BorderThickness="1" Margin="2" Height="23" HorizontalAlignment="Left" Width="110" Grid.Column="0"   ToolTipService.ToolTip="Please input keywords" ToolTipService.InitialShowDelay="1" ToolTipService.Placement="MousePoint">            <TextBox.Resources>                <VisualBrush x:Key="HelpBrush" TileMode="None" Opacity="0.5" Stretch="None" AlignmentX="Left">                    <VisualBrush.Visual>                        <TextBlock FontStyle="Italic" Text="Search Files"/>                    </VisualBrush.Visual>                </VisualBrush>            </TextBox.Resources>            <TextBox.Style>                <Style TargetType="TextBox">                    <Style.Triggers>                        <Trigger Property="Text" Value="{x:Null}">                            <Setter Property="Background" Value="{StaticResource HelpBrush}"/>                        </Trigger>                        <Trigger Property="Text" Value="">                            <Setter Property="Background" Value="{StaticResource HelpBrush}"/>                        </Trigger>                    </Style.Triggers>                </Style>            </TextBox.Style>        </TextBox>

具体是哪位大侠写的我也忘记了，谢谢哪位老兄了。

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