Question

我已经在我的XAML文件中搜索了“Width”这个单词，并且它只显示一个数字作为根元素的值，设置整个控件的宽度。单词“height”在根元素上只有一个数值，两个文本框与下面的复选框不在同一个Grid单元格中。

不幸的是，无论我在UserControl元素中为高度和宽度设置的值如何，以下复选框都不会变大：

<Style x:Key="CheckBoxStyle1" TargetType="CheckBox">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="CheckBox">
                        <Grid ToolTipService.ToolTip="">
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CheckStates">
                                    <VisualState x:Name="Checked">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="path" d:IsOptimized="True"/>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Unchecked"/>
                                    <VisualState x:Name="Indeterminate"/>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <Image x:Name="lightbulb" Source="BestLogin_Images/lightbulb.png" ToolTipService.ToolTip=""/>
                            <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="140,0,0,0" Content="" ToolTipService.ToolTip=""/>
                            <Path x:Name="path" Data="M41.75,5.5 L53.75,2.25 L58.5,0.75 L65.75,1.5 L73,3.75 L83.25,8.25 L88.5,13.25 L95.5,21 L102,33.75 L102.5,44.5 L97.5,59.25 L90.25,74.75 L86.5,82.5 L84.25,91.5 L83.75,96.5 L79.5,104.25 L79.75,108.75 L78.5,113.25 L80,114.5 L79.75,119.75 L79,126 L76.75,132 L74.5,134.5 L68.75,140.5 L65,142 L64.53125,143.125 L62.75,144.75 L61.4375,145.59375 L57.71875,145.90601 L55.15625,143.46875 L53.4375,142.40625 L50.625,141.46875 L47.15625,137.34375 L43.5,135 L40.375,129.84375 L39.5,128.53125 L40.4375,127.375 L41.25,126.09375 L41.15625,124.78125 L39.15625,123.65625 L39.343998,121.5625 L39.343998,116.15625 L39.406498,111.3125 L38.750252,104.90625 L35.583599,99.791664 L35.292271,91.125 L33.375278,80.75 L31.54195,77.583336 L26.791613,69.75 L21.332918,59.541668 L19.874918,56.25 L19.08325,37.708332 L19.37525,36.75 L21.750242,27.333334 L27.041893,18.416666 L31.79188,11.833333 L37.416862,7.0833335 L38.791859,6.5833335 z" HorizontalAlignment="Left" Margin="19.083,0.75,0,18.094" Stretch="Fill" Fill="#B2FFF500" Opacity="0" ToolTipService.ToolTip="Click me to light up your day."/>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
...snip...(Grid layout)    
<CheckBox Content="CheckBox" Style="{StaticResource CheckBoxStyle1}"  HorizontalAlignment="Left" VerticalAlignment="Stretch" Grid.Row="2" Name="CheckBox1" />

Answer 1

WPF中元素的大小不仅仅是宽度和高度。您还需要考虑所有对齐设置：HorizontalAlignment，VerticalAlignment，有时HorizontalContentAlignment和VerticalContentAlignment，以及用于排列元素的布局面板。在这里，你已经将CheckBox左对齐，因此它永远不会获得比它所需的最小宽度更大的宽度。你还没有包含Grid XAML，但我怀疑CheckBox的Row可能被设置为Height =“Auto”，但是如果没有看到其余的布局，我无法确定。

WPF无法调整控制权

1 个答案: