WPF XAML的ScrollViewer不会滚动

我不能让我的ScrollViewer滚动WPF XAML的ScrollViewer不会滚动

如果我设置VerticalScrollBarVisibility =“自动”，它甚至不显示，表示它并不认为它是需要

我试图与我的网格行高度不同的东西就像从汽车到*，但仍然没有运气

这里改变它们是我的XAML

<UserControl mc:Ignorable="d" Height="680" Width="750" 
     d:DesignHeight="300" d:DesignWidth="300"> 

<Border Name="b" Margin="10,0,10,10" Style="{DynamicResource BorderStyle}" Background="{DynamicResource BackgroundBrush}"> 
    <DockPanel x:Name="MainPanel"> 

     <!-- header area --> 
     <DockPanel Margin="10,0,10,0" DockPanel.Dock="Top" Height="80" x:Name="HeaderPanel"> 
      <TextBlock Text="Uncertainty in Sample - Volume Final and Volume Initial" Style="{DynamicResource HeaderStyle}" FontWeight="Bold" Margin="5,0,0,0" VerticalAlignment="Center" Foreground="{DynamicResource HeaderFontColor}"/> 
      <Image Source="/images/sample.jpg" HorizontalAlignment="Right"></Image> 
     </DockPanel> 

    <Border Name="b"> 
     <StackPanel> 

      <Separator Height="1" Margin="0" VerticalAlignment="Top" Width="750" HorizontalAlignment="Left"/> 

      <ScrollViewer VerticalScrollBarVisibility="Auto" MaxHeight="{Binding Path=ActualHeight, ElementName=b, Mode=OneWay}">     <Grid HorizontalAlignment="Left" x:Name="Outer" VerticalAlignment="Top" Margin="0,10,0,0"> 

        <Grid.ColumnDefinitions> 
         <ColumnDefinition Width="Auto" /> 
         <ColumnDefinition Width="Auto" /> 
         <ColumnDefinition Width="Auto" /> 
        </Grid.ColumnDefinitions> 
        <Grid.RowDefinitions> 
         <RowDefinition Height="Auto" /> 
         <RowDefinition Height="Auto" /> 
         <RowDefinition Height="Auto" /> 
         <RowDefinition Height="Auto" /> 
         <RowDefinition Height="Auto" /> 
        </Grid.RowDefinitions> 

        <GroupBox Grid.Row="0" Grid.Column="0" Header="Volume Final" Style="{DynamicResource GroupBoxStyle}"> 

         <Grid HorizontalAlignment="Left" x:Name="GridVolume" VerticalAlignment="Top" Margin="0,0,0,0"> 
          <Grid.ColumnDefinitions> 
           <ColumnDefinition Width="Auto" /> 
           <ColumnDefinition Width="Auto" /> 
          </Grid.ColumnDefinitions> 
          <Grid.RowDefinitions> 
           <RowDefinition Height="Auto" /> 
           <RowDefinition Height="Auto" /> 
           <RowDefinition Height="Auto" /> 
          </Grid.RowDefinitions> 

          <Label Grid.Row="0" Grid.Column="0" Content="Select Volumetric size:" Target="{Binding ElementName=VolumetricComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
          <ComboBox x:Name="VolumetricComboBox" Grid.Row="0" Grid.Column="1" Width="180" HorizontalAlignment="Left" Margin="5,0,0,0" DisplayMemberPath="Label" ItemsSource="{Binding Path=Volumetrics}" SelectedItem="{Binding Path=SelectedVolumeFinalVolumetric, Mode=TwoWay}" Height="22" /> 


          <Label Grid.Row="1" Grid.Column="0" Content="Select Solvent:" Target="{Binding ElementName=SolventComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
         <ComboBox x:Name="SolventComboBox" Grid.Row="1" Grid.Column="1" Width="180" HorizontalAlignment="Left" Margin="5,0,0,0" DisplayMemberPath="Solvent" ItemsSource="{Binding Path=ThermalExpansions}" SelectedItem="{Binding Path=SelectedVolumeFinalThermalExpansion, Mode=TwoWay}" Height="22" /> 

          <Label Grid.Row="2" Grid.Column="0" Content="Select Temperature (° c):" Target="{Binding ElementName=SolventComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
         <ComboBox x:Name="TemperatureComboBox" Grid.Row="2" Grid.Column="1" Width="180" HorizontalAlignment="Left" Margin="5,0,0,0" DisplayMemberPath="TemperatureValue" ItemsSource="{Binding Path=Temperatures}" SelectedItem="{Binding Path=SelectedVolumeFinalTemperature, Mode=TwoWay}" Height="22" /> 

         </Grid> 
        </GroupBox> 


        <GroupBox Grid.Row="0" Grid.Column="1" Header="Area" Style="{DynamicResource GroupBoxStyle}"> 
         <StackPanel> 
          <StackPanel Orientation="Horizontal" VerticalAlignment="Top"> 
           <Label Content="System Inj. Reproducibility (% RSD):" Foreground="{DynamicResource InputFontColor}" /> 
           <TextBox TextWrapping="Wrap" Style="{StaticResource TextStyle}" x:Name="SystemInjectionTextBox" Width="135" Text="{Binding Path=Sample.Precision.SystemInjectionReproducibility}" Margin="5,0,0,0" IsEnabled="True"/> 
          </StackPanel> 
          <StackPanel Orientation="Horizontal" VerticalAlignment="Top"> 
           <Label Content="Enter % RSD of Sample results (zero if unknown):" Target="{Binding ElementName=AreaTextBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}"/> 
           <TextBox TextWrapping="Wrap" Style="{StaticResource TextStyle}" x:Name="AreaTextBox" Width="70" Text="{Binding Path=Sample.Precision.RSDKnownAmount}" HorizontalAlignment="Left" Margin="5,0,0,0" /> 
          </StackPanel> 
         </StackPanel> 
        </GroupBox> 

        <GroupBox Grid.Row="1" Grid.Column="0" Header="Volume Initial" Style="{DynamicResource GroupBoxStyle}"> 
         <Grid HorizontalAlignment="Left" x:Name="GridMass" VerticalAlignment="Top" Margin="0,10,0,0"> 
          <Grid.ColumnDefinitions> 
           <ColumnDefinition Width="Auto" /> 
           <ColumnDefinition Width="Auto" /> 
          </Grid.ColumnDefinitions> 
          <Grid.RowDefinitions> 
           <RowDefinition Height="Auto" /> 
           <RowDefinition Height="Auto" /> 
          </Grid.RowDefinitions> 

          <Label Grid.Row="0" Grid.Column="0" Content="Select Balance:" Target="{Binding ElementName=BalanceComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
          <ComboBox x:Name="BalanceComboBox" Grid.Row="0" Grid.Column="1" Width="180" HorizontalAlignment="Left" Margin="5,0,0,0" DisplayMemberPath="Description" ItemsSource="{Binding Path=Balances}" SelectedItem="{Binding Path=SelectedVolumeIntitialBalance, Mode=TwoWay}" Height="22" /> 

          <Label Grid.Row="1" Grid.Column="0" Content="Mass Weighed (g):" Target="{Binding ElementName=MassWeighedTextBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
          <TextBox Grid.Row="1" Grid.Column="1" TextWrapping="Wrap" Style="{StaticResource TextStyle}" x:Name="MassWeighedTextBox" Width="135" Text="{Binding Path=Sample.VolumeInitial.Mass.MassWeighed}" HorizontalAlignment="Left" Margin="5,0,0,0"/> 
         </Grid> 

        </GroupBox> 

        <GroupBox Grid.Row="2" Grid.Column="0" Header="Reported Units" Style="{DynamicResource GroupBoxStyle}"> 
         <Grid HorizontalAlignment="Left" x:Name="GridReportedUnits" VerticalAlignment="Top" Margin="0,10,0,0"> 
          <Grid.ColumnDefinitions> 
           <ColumnDefinition Width="Auto" /> 
           <ColumnDefinition Width="Auto" /> 
          </Grid.ColumnDefinitions> 
          <Grid.RowDefinitions> 
           <RowDefinition Height="Auto" /> 
          </Grid.RowDefinitions> 

          <Label Grid.Row="0" Grid.Column="0" Content="Select Reported Units:" Target="{Binding ElementName=BalanceComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
          <StackPanel Grid.Row="0" Grid.Column="1" Orientation="Horizontal" VerticalAlignment="Center"> 
           <StackPanel.Resources> 
            <views:EnumBooleanConverter x:Key="enumBooleanConverter" /> 
           </StackPanel.Resources> 
           <RadioButton GroupName="ReportedUnits" Content="W/V" IsChecked="{Binding Path=SelectedRadioButton, Converter={StaticResource enumBooleanConverter}, ConverterParameter=WeightVolume}" Command="{Binding RadioClicked}" Margin="0, 0, 10, 0" /> 
           <RadioButton GroupName="ReportedUnits" Content="W/W" IsChecked="{Binding Path=SelectedRadioButton, Converter={StaticResource enumBooleanConverter}, ConverterParameter=WeightWeight}" Command="{Binding RadioClicked}" Margin="0, 0, 10, 0"/> 
          </StackPanel> 
         </Grid> 
        </GroupBox> 

        <GroupBox Grid.ColumnSpan="3" Grid.Row="3" Header="Density" Style="{DynamicResource GroupBoxStyle}" Visibility="{Binding Path=DensityVisible}"> 

         <StackPanel> 
          <Grid HorizontalAlignment="Left" x:Name="GridDensity" VerticalAlignment="Top" Margin="5,5,0,0"> 
           <Grid.ColumnDefinitions> 
            <ColumnDefinition Width="Auto" /> 
            <ColumnDefinition Width="Auto" /> 
           </Grid.ColumnDefinitions> 
           <Grid.RowDefinitions> 
            <RowDefinition Height="Auto" /> 
           </Grid.RowDefinitions> 

           <Label Grid.Row="0" Grid.Column="0" Content="Enter Method of Density Determination:" Target="{Binding ElementName=DensityDeterminationComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
           <StackPanel Orientation="Horizontal" Grid.Row="0" Grid.Column="1"> 
            <ComboBox x:Name="DensityDeterminationComboBox" Width="200" HorizontalAlignment="Left" Margin="5,0,0,0" DisplayMemberPath="Method" ItemsSource="{Binding Path=DensityDeterminations}" SelectedItem="{Binding Path=SelectedDensityDetermination, Mode=TwoWay}" Height="22" /> 
            <Label Grid.Row="0" Grid.Column="0" Content=" u(d) = 1" Foreground="{DynamicResource InputFontColor}" Visibility="{Binding Path=DensityClientSuppliedVisible}"/> 
           </StackPanel> 
          </Grid> 


          <Grid HorizontalAlignment="Left" Grid.Row="4" Grid.ColumnSpan="3" x:Name="OuterDensityGridMass" VerticalAlignment="Top" Margin="0,20,0,0"> 
           <Grid.ColumnDefinitions> 
            <ColumnDefinition Width="Auto" /> 
            <ColumnDefinition Width="Auto" /> 
            <ColumnDefinition Width="Auto" /> 
           </Grid.ColumnDefinitions> 
           <Grid.RowDefinitions> 
            <RowDefinition Height="Auto" /> 
           </Grid.RowDefinitions> 

           <GroupBox Grid.Row="0" Grid.Column="0" Margin="5,5,5,5" Header="" Style="{DynamicResource GroupBoxStyle}" Visibility="{Binding Path=DensityDensitoVisible}"> 

            <Grid HorizontalAlignment="Left" x:Name="DensityGridUserEntered" VerticalAlignment="Top" Margin="0,10,0,0"> 
             <Grid.ColumnDefinitions> 
              <ColumnDefinition Width="Auto" /> 
              <ColumnDefinition Width="Auto" /> 
             </Grid.ColumnDefinitions> 
             <Grid.RowDefinitions> 
              <RowDefinition Height="Auto" /> 
             </Grid.RowDefinitions> 

             <Label Grid.Row="1" Grid.Column="0" Content="Enter Density (g/ml):" Target="{Binding ElementName=DensityUserEnteredTextBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
             <TextBox Grid.Row="1" Grid.Column="1" TextWrapping="Wrap" Style="{StaticResource TextStyle}" x:Name="DensityUserEnteredTextBox" Width="135" Text="{Binding Path=UserEnteredDensity, Mode=TwoWay}" HorizontalAlignment="Left" Margin="5,0,0,0"/> 
            </Grid> 

           </GroupBox> 

           <GroupBox Grid.Row="0" Grid.Column="0" Margin="5,5,5,5" Header="Mass" Style="{DynamicResource GroupBoxStyle}" Visibility="{Binding Path=DensityMassVolumeVisible}"> 

            <Grid HorizontalAlignment="Left" x:Name="DensityGridMass" VerticalAlignment="Top" Margin="0,10,0,0"> 
             <Grid.ColumnDefinitions> 
              <ColumnDefinition Width="Auto" /> 
              <ColumnDefinition Width="Auto" /> 
             </Grid.ColumnDefinitions> 
             <Grid.RowDefinitions> 
              <RowDefinition Height="Auto" /> 
              <RowDefinition Height="Auto" /> 
             </Grid.RowDefinitions> 

             <Label Grid.Row="0" Grid.Column="0" Content="Select Balance:" Target="{Binding ElementName=DensityBalanceComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
             <ComboBox x:Name="DensityBalanceComboBox" Grid.Row="0" Grid.Column="1" Width="200" HorizontalAlignment="Left" Margin="5,0,0,0" DisplayMemberPath="Description" ItemsSource="{Binding Path=Balances}" SelectedItem="{Binding Path=SelectedDensityBalance, Mode=TwoWay}" Height="22" /> 

             <Label Grid.Row="1" Grid.Column="0" Content="Mass Weighed (g):" Target="{Binding ElementName=DensityMassWeighedTextBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
             <TextBox Grid.Row="1" Grid.Column="1" TextWrapping="Wrap" Style="{StaticResource TextStyle}" x:Name="DensityMassWeighedTextBox" Width="135" Text="{Binding Path=Sample.Density.Mass.MassWeighed}" HorizontalAlignment="Left" Margin="5,0,0,0"/> 
            </Grid> 

           </GroupBox> 

           <GroupBox Grid.Row="0" Grid.Column="1" Header="Volume" Style="{DynamicResource GroupBoxStyle}" Visibility="{Binding Path=DensityMassVolumeVisible}" Margin="5,5,5,5"> 

            <Grid HorizontalAlignment="Left" x:Name="DensityGridVolume" VerticalAlignment="Top" Margin="0,10,0,0"> 
             <Grid.ColumnDefinitions> 
              <ColumnDefinition Width="Auto" /> 
              <ColumnDefinition Width="Auto" /> 
             </Grid.ColumnDefinitions> 
             <Grid.RowDefinitions> 
              <RowDefinition Height="Auto" /> 
              <RowDefinition Height="Auto" /> 
              <RowDefinition Height="Auto" /> 
             </Grid.RowDefinitions> 

             <Label Grid.Row="0" Grid.Column="0" Content="Select Volumetric size:" Target="{Binding ElementName=DensityVolumetricComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
             <ComboBox x:Name="DensityVolumetricComboBox" Grid.Row="0" Grid.Column="1" Width="180" HorizontalAlignment="Left" Margin="5,0,0,0" DisplayMemberPath="Label" ItemsSource="{Binding Path=Volumetrics}" SelectedItem="{Binding Path=SelectedDensityVolumetric, Mode=TwoWay}" Height="22" /> 

             <Label Grid.Row="1" Grid.Column="0" Content="Select Solvent:" Target="{Binding ElementName=DensitySolventComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
             <ComboBox x:Name="DensitySolventComboBox" Grid.Row="1" Grid.Column="1" Width="180" HorizontalAlignment="Left" Margin="5,0,0,0" DisplayMemberPath="Solvent" ItemsSource="{Binding Path=ThermalExpansions}" SelectedItem="{Binding Path=SelectedDensityThermalExpansion, Mode=TwoWay}" Height="22" /> 

             <Label Grid.Row="2" Grid.Column="0" Content="Select Temperature:" Target="{Binding ElementName=DensityTemperatureComboBox, Mode=OneWay}" Foreground="{DynamicResource InputFontColor}" /> 
             <ComboBox x:Name="DensityTemperatureComboBox" Grid.Row="2" Grid.Column="1" Width="180" HorizontalAlignment="Left" Margin="5,0,0,0" DisplayMemberPath="TemperatureValue" ItemsSource="{Binding Path=Temperatures}" SelectedItem="{Binding Path=SelectedDensityTemperature, Mode=TwoWay}" Height="22" /> 
            </Grid> 

           </GroupBox> 

          </Grid> 
         </StackPanel> 
        </GroupBox> 

       </Grid> 

      </ScrollViewer> 
      </StackPanel> 
     </Border> 

    </DockPanel> 
</Border> 
</UserControl>

来源

2017-03-22 David

我想第一个StackPanel是问题。尝试用网格替换它。 –

我试图将其更改为一个网格（没有任何列或行的定义），仍然是同样的问题 – David

@David，StackPanel嵌套到另一个StackPanel或网格行与自动高度？当我在一个空的窗口中尝试了一个简单的测试 - ''和'' - Grid取得差异 – ASh

出于某种原因StackPanel里面DockPanel决定它可以使用无限高度的内容。 ScrollViewer不显示滚动，因为它的高度等于内容高度。

设置为MaxHeight为ScrollViewer应该解决问题。诀窍是找到MaxHeight的正确值 - 将它绑定到其他元素的高度，如果窗口。

<DockPanel x:Name="MainPanel"> 

    <!-- header area --> 
    <DockPanel Margin="10,0,10,0" DockPanel.Dock="Top" Height="80" x:Name="HeaderPanel"> 
     <TextBlock Text="Uncertainty in Sample - Volume Final and Volume Initial" Style="{DynamicResource HeaderStyle}" FontWeight="Bold" Margin="5,0,0,0" VerticalAlignment="Center" Foreground="{DynamicResource HeaderFontColor}"/> 
     <Image Source="/images/sample.jpg" HorizontalAlignment="Right"></Image> 
    </DockPanel> 

    <Border Name="b"> 
    <StackPanel> 

     <Separator Height="1" Margin="0" VerticalAlignment="Top" Width="750" HorizontalAlignment="Left"/> 

     <ScrollViewer VerticalScrollBarVisibility="Auto" 
         MaxHeight="{Binding Path=ActualHeight, ElementName=b, Mode=OneWay}"> 
      <Grid> 

      </Grid> 
     </ScrollViewer> 
    </StackPanel> 
    </Border> 
</DockPanel>

来源

2017-03-22 11:56:47 ASh

我尝试了你的建议，仍然没有运气。我上面更新了我的XAML以显示我的更改 – David

@David，它与我的建议有点不同。用ScrollViewer在StackPanel周围添加边框。除了测量身高之外，该边框是隐形的，没有任何其他目的。 – ASh

对不起 - 我以为你的意思是我的页面上的第一个边框。再次更新。这一次，当我运行它时，我在页面上看不到任何东西，没有一个控件 – David

把一个ScrollViewer一个StackPanel内始终是一个好主意，因为一个StackPanel措施，其子女有无限空间：

Horizontal scroll for stackpanel doesn't work

与Grid有两个RowDefinition小号更换StackPanel：

<Border Name="b" Margin="10,0,10,10" Style="{DynamicResource BorderStyle}" Background="{DynamicResource BackgroundBrush}"> 
    <DockPanel x:Name="MainPanel"> 

     <!-- header area --> 
     <DockPanel Margin="10,0,10,0" DockPanel.Dock="Top" Height="80" x:Name="HeaderPanel"> 
      <TextBlock Text="Uncertainty in Sample - Volume Final and Volume Initial" Style="{DynamicResource HeaderStyle}" FontWeight="Bold" Margin="5,0,0,0" VerticalAlignment="Center" Foreground="{DynamicResource HeaderFontColor}"/> 
      <Image Source="/images/sample.jpg" HorizontalAlignment="Right"></Image> 
     </DockPanel> 

     <Border Name="b"> 
      <Grid> 
       <Grid.RowDefinitions> 
        <RowDefinition Height="Auto" /> 
        <RowDefinition Height="*" /> 
       </Grid.RowDefinitions> 

       <Separator Height="1" Margin="0" VerticalAlignment="Top" Width="750" HorizontalAlignment="Left"/> 

       <ScrollViewer VerticalScrollBarVisibility="Auto" MaxHeight="{Binding Path=ActualHeight, ElementName=b, Mode=OneWay}" Grid.Row="1"> 
        <Grid HorizontalAlignment="Left" x:Name="Outer" VerticalAlignment="Top" Margin="0,10,0,0"> 
         ... 
        </Grid> 
       </ScrollViewer> 
      </Grid> 
     </Border> 

    </DockPanel> 
</Border>

您可能需要更换一些内部的StackPanel s，但使用Grid作为ScrollViewer的子元素应使滚动条在需要时显示。

来源

2017-03-22 13:55:53 mm8

WPF XAML的ScrollViewer不会滚动

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