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我已经定义了一个UserControl被调用的TouchTextBox. 我已经得到了TouchTextBox焦点，TextBox当它收到焦点时。现在TouchTextBox，当用户单击另一个控件或按下 Tab 时，我需要放弃焦点。这是TouchTextBox.

<UserControl x:Class="CarSystem.CustomControls.TouchTextBox"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:fps="clr-namespace:FPS.VirtualKeyboard;assembly=FPS.VirtualKeyboard"
             mc:Ignorable="d"
             Focusable="True"
             GotFocus="UserControl_GotFocus">

    <Grid Margin="0">
        <Border BorderBrush="{Binding Path=BorderBrush, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                BorderThickness="{Binding Path=BorderThickness, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}"
                FocusManager.IsFocusScope="True"
                VerticalAlignment="{Binding Path=VerticalAlignment, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}">
            <TextBox AcceptsTab="False"
                     AcceptsReturn="False"
                     Background="White" 
                     Cursor="{Binding Path=Cursor, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     FlowDirection="{Binding Path=FlowDirection, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     FontFamily="{Binding Path=FontFamily, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}"
                     FontSize="{Binding Path=FontSize, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     FontStretch="{Binding Path=FontStretch, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     FontStyle="{Binding Path=FontStyle, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     FontWeight="{Binding Path=FontWeight, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     GotFocus="TextBox_GotFocus" 
                     HorizontalAlignment="{Binding Path=HorizontalAlignment, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     HorizontalContentAlignment="{Binding Path=HorizontalContentAlignment, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     IsEnabled="{Binding Path=IsEnabled, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     LostFocus="TextBox_LostFocus" 
                     Margin="1" 
                     MaxLength="{Binding Path=MaxLength, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     MaxLines="{Binding Path=MaxLines, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
                     Name="TextBox" 
                     Text="{Binding Path=Text, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}"
                     TextChanged="TextBox_TextChanged" />
        </Border>
        <Popup IsOpen="{Binding Path=PopupIsOpen, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 
               Name="KeyboardPopup" 
               PlacementTarget="{Binding Path=PlacementTarget, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}">
            <fps:VirtualKeyboard AutoFill="True" Name="PopupKeyboard" />
        </Popup>
    </Grid>
</UserControl>

此控件用作几个UserControl's 上的子控件，然后在我的MainWindow. 当此控件获得焦点时，它会按设计显示 Popup。但不知何故，当我单击另一个控件或按 Tab 时，它并没有放弃焦点。

我必须改变什么才能完成这项工作？

托尼

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1 回答 1

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我通常使用的解决方法是IsTabStop="False"在 my上设置UserControl（以防止在UserControl自身上跳动），然后在内部UserControl使用 aTemplateBinding将内部控件绑定到TabIndex' UserControls TabIndex。

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于 2011-12-10T20:07:13.903 回答