Question

我有一个IntegerUpDown控件，该控件来自WPF扩展库（Xceed）。我希望用户仅使用上/下箭头输入值，而不能在其中输入值

我尝试使用IsReadOnly属性，但这也会禁用向上/向下错误。

<xctk:IntegerUpDown  IsReadOnly="True" DisplayDefaultValueOnEmptyText="True" GotFocus="Day_GotFocus" LostFocus="Day_LostFocus" x:Name="Day" Value="{Binding DayText, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Style="{StaticResource BaseDateInputTextBoxesStyle}" Minimum="{Binding MinimumDateSelection}" Maximum="{Binding MaximumDateSelection}">
    <xctk:IntegerUpDown.Watermark>
        <TextBlock Text="Day" Foreground="{StaticResource OffsetWhiteBrush}" Margin="0,0,60,0"/>
    </xctk:IntegerUpDown.Watermark>
</xctk:IntegerUpDown>

如何禁用文本框区域，以使用户无法键入值，而只能使用向上/向下箭头键？

Answer 1

IntegerUpDown具有满足您要求的属性：AllowTextInput="False"

Answer 2

我通过编辑IntegerUpDown控件的ControlTemplate副本并将isReadOnly属性添加到WaterMarkTextBox中来解决此问题。

 <ControlTemplate x:Key="ControlControlTemplate1" TargetType="{x:Type Control}">
                <xctk:ButtonSpinner x:Name="PART_Spinner" AllowSpin="{Binding AllowSpin, RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" ButtonSpinnerLocation="{Binding ButtonSpinnerLocation, RelativeSource={RelativeSource TemplatedParent}}" Background="{TemplateBinding Background}" HorizontalContentAlignment="Stretch" IsTabStop="False" ShowButtonSpinner="{Binding ShowButtonSpinner, RelativeSource={RelativeSource TemplatedParent}}" VerticalContentAlignment="Stretch">
                    <xctk:WatermarkTextBox IsReadOnly="True" x:Name="PART_TextBox" AutoMoveFocus="{Binding AutoMoveFocus, RelativeSource={RelativeSource TemplatedParent}}" AutoSelectBehavior="{Binding AutoSelectBehavior, RelativeSource={RelativeSource TemplatedParent}}" AcceptsReturn="False" BorderThickness="0" Background="Transparent" ContextMenu="{TemplateBinding ContextMenu}" Foreground="{TemplateBinding Foreground}" FontWeight="{TemplateBinding FontWeight}" FontStyle="{TemplateBinding FontStyle}" FontStretch="{TemplateBinding FontStretch}" FontSize="{TemplateBinding FontSize}" FontFamily="{TemplateBinding FontFamily}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" IsTabStop="True" IsUndoEnabled="True" MinWidth="20" MaxLength="{Binding MaxLength, RelativeSource={RelativeSource TemplatedParent}}" Padding="{TemplateBinding Padding}" TextAlignment="{Binding TextAlignment, RelativeSource={RelativeSource TemplatedParent}}" TextWrapping="NoWrap" TabIndex="{TemplateBinding TabIndex}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" WatermarkTemplate="{Binding WatermarkTemplate, RelativeSource={RelativeSource TemplatedParent}}" Watermark="{Binding Watermark, RelativeSource={RelativeSource TemplatedParent}}"/>
                </xctk:ButtonSpinner>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsMouseOver" Value="True">
                        <Setter Property="BorderBrush" Value="{DynamicResource {ComponentResourceKey ResourceId=ControlMouseOverBorderKey, TypeInTargetAssembly={x:Type Themes:ResourceKeys}}}"/>
                    </Trigger>
                    <MultiDataTrigger>
                        <MultiDataTrigger.Conditions>
                            <Condition Binding="{Binding IsReadOnly, RelativeSource={RelativeSource Self}}" Value="False"/>
                            <Condition Binding="{Binding AllowTextInput, RelativeSource={RelativeSource Self}}" Value="False"/>
                        </MultiDataTrigger.Conditions>
                        <Setter Property="IsReadOnly" TargetName="PART_TextBox" Value="True"/>
                    </MultiDataTrigger>
                    <DataTrigger Binding="{Binding IsReadOnly, RelativeSource={RelativeSource Self}}" Value="True">
                        <Setter Property="IsReadOnly" TargetName="PART_TextBox" Value="True"/>
                    </DataTrigger>
                    <Trigger Property="IsKeyboardFocusWithin" Value="True">
                        <Setter Property="BorderBrush" Value="{DynamicResource {ComponentResourceKey ResourceId=ControlSelectedBorderKey, TypeInTargetAssembly={x:Type Themes:ResourceKeys}}}"/>
                    </Trigger>
                    <Trigger Property="IsEnabled" Value="False">
                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                    </Trigger>
                    <Trigger Property="IsFocused" Value="True">
                        <Setter Property="FocusManager.FocusedElement" TargetName="PART_TextBox" Value="{Binding ElementName=PART_TextBox}"/>
                        <Setter TargetName="PART_TextBox" Property="Background" Value="{StaticResource LightGreyBrush}" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>

要编辑模板的副本，请右键单击控件，然后编辑模板，编辑副本或当前版本

禁用IntegerUpDown控件的文本输入-WPF

2 个答案: