C# WPF不显示垂直滚动条
我试图创建一个应用程序，根据从数据库收集的信息显示用户控件。问题是，如果项目的总高度超过为该显示保留的主窗口网格，我看不到垂直滚动条。从我发现的可能存在的问题来看，stackpanel/scrollviewer并没有限制其子级的大小。我一直在想如何解决这个问题，有没有办法在有限的空间里堆叠项目，滚动条只有在需要时才可见。 我想避免对scrollviewer的高度进行“硬编码”。 目前，我只能使用以下代码： XAML：（主窗口） 和任务项类（通过datacontext将项绑定到该类） 正如您所看到的，我试图将scrollviewer高度绑定到我在它上面创建的网格，认为如果我将高度设置为“自动”，它将从网格实际高度获取高度。嗯，这没有多大意义，因此它不起作用。我正试图找到另一种对项目进行分组的解决方案，这样我就可以轻松地扩展主窗口，而无需对每个窗口进行编码以使用此扩展进行扩展，这样项目就可以填充所有可用空间并在需要时显示滚动条C# WPF不显示垂直滚动条,c#,wpf,C#,Wpf,我试图创建一个应用程序，根据从数据库收集的信息显示用户控件。问题是，如果项目的总高度超过为该显示保留的主窗口网格，我看不到垂直滚动条。从我发现的可能存在的问题来看，stackpanel/scrollviewer并没有限制其子级的大小。我一直在想如何解决这个问题，有没有办法在有限的空间里堆叠项目，滚动条只有在需要时才可见。 我想避免对scrollviewer的高度进行“硬编码”。 目前，我只能使用以下代码： XAML：（主窗口） 和任务项类（通过datacontext将项绑定到该类） 正如您所看到
请帮助：）您需要在某个地方限制
ScollViewerucTaskItem<Grid Name="selectedOptionGrid"
Grid.Column="1"
Grid.Row="1"
HorizontalAlignment="Left"
VerticalAlignment="Top">
<StackPanel Name="selectedOptionStack"/>
<!-- Dock selected windows based on option selected-->
</Grid>
<UserControl x:Class="Power_Planner_1._0.Team_Planner.MyTasks.ucTaskWindow"
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:local="clr-namespace:Power_Planner_1._0.Team_Planner.MyTasks"
mc:Ignorable="d">
<Grid Background="White"
VerticalAlignment="Stretch"
HorizontalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="20"/>
<RowDefinition Height="5"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="0"
Orientation="Horizontal"
VerticalAlignment="Top"
Margin="0,5,0,0">
<TextBlock Margin="60,0,0,0" Width="160" FontWeight="Bold">Task Name</TextBlock>
<TextBlock Margin="10,0,0,0" Width="160" FontWeight="Bold">Team Name</TextBlock>
<TextBlock Margin="0,0,0,0" Width="55" FontWeight="Bold">Deadline</TextBlock>
<TextBlock Margin="20,0,0,0" Width="60" FontWeight="Bold">Start</TextBlock>
<TextBlock Margin="28,0,0,0" Width="60" FontWeight="Bold">End</TextBlock>
<TextBlock Margin="20,0,0,0" Width="60" FontWeight="Bold">Run Time</TextBlock>
</StackPanel>
<Separator Grid.Row="1"
VerticalAlignment="Top"/>
<Grid Name="taskListGrid"
Grid.Row="2"
Height="510"
Width="830">
<ScrollViewer VerticalScrollBarVisibility="Auto"
Width="{Binding ActualWidth,RelativeSource={RelativeSource
Mode=FindAncestor, AncestorType=Grid}}"
Height="{Binding ActualHeight,RelativeSource={RelativeSource
Mode=FindAncestor, AncestorType=Grid}}">
<StackPanel Orientation="Vertical"
x:Name="taskListStack">
<StackPanel.Resources>
<Style TargetType="UserControl">
<Setter Property="Margin" Value="0,5,0,0"/>
</Style>
</StackPanel.Resources>
</StackPanel>
</ScrollViewer>
</Grid>
</Grid>
</UserControl>
<UserControl x:Class="Power_Planner_1._0.Team_Planner.MyTasks.ucTaskItem"
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:local="clr-namespace:Power_Planner_1._0.Team_Planner.MyTasks"
xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
mc:Ignorable="d" d:DesignHeight="45">
<Border CornerRadius="12,12,12,12"
BorderThickness="1,1,1,1"
BorderBrush="LightGray"
Background="#FF456780"
Padding="0">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="160"/>
<ColumnDefinition Width="160"/>
<ColumnDefinition Width="65"/>
<ColumnDefinition Width="90"/>
<ColumnDefinition Width="90"/>
<ColumnDefinition Width="65"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<!--Picture-->
<Border Grid.Column="0"
CornerRadius="25,25,25,25"
BorderThickness="1,1,1,1"
Width="30"
Height="30"
BorderBrush="LightGray"
Background="ForestGreen"
HorizontalAlignment="Left"
Margin="10,0,0,0">
</Border>
<!--Task Name-->
<TextBlock Grid.Column="1"
Margin="10,0,0,0"
FontSize="12"
Foreground="LightGray"
Text="{Binding taskName}"
Width="160"
VerticalAlignment="Center">
</TextBlock>
<!--Team Name-->
<TextBlock Grid.Column="2"
Margin="20,0,0,0"
FontSize="12"
Foreground="LightGray"
Text="{Binding teamName}"
Width="160"
VerticalAlignment="Center">
</TextBlock>
<!--Deadline-->
<TextBlock Grid.Column="3"
Margin="20,0,0,0"
FontSize="12"
Foreground="LightGray"
Text="{Binding deadline}"
Width="45"
VerticalAlignment="Center">
</TextBlock>
<!--Start-->
<Button Grid.Column="4"
Background="#FF456780"
BorderBrush="LightGray"
Height="25"
Margin="20,0,0,0"
Width="60">
<Button.Resources>
<Style TargetType="{x:Type Border}">
<Setter Property="CornerRadius" Value="10"/>
</Style>
</Button.Resources>
<TextBlock Foreground="LightGray">Start</TextBlock>
</Button>
<!--Stop-->
<Button Grid.Column="5"
Background="#FF456780"
BorderBrush="LightGray"
Height="25"
Margin="20,0,0,0"
Width="60">
<Button.Resources>
<Style TargetType="{x:Type Border}">
<Setter Property="CornerRadius" Value="10"/>
</Style>
</Button.Resources>
<TextBlock Foreground="LightGray">Stop</TextBlock>
</Button>
<!--Deadline-->
<TextBlock Grid.Column="6"
Margin="20,0,0,0"
FontSize="12"
Foreground="LightGray"
Text="{Binding runtime}"
Width="45"
VerticalAlignment="Center">
</TextBlock>
<!--Other Options-->
<materialDesign:PopupBox Grid.Column="7"
StaysOpen="False"
Foreground="White"
HorizontalAlignment="Right">
<StackPanel Width="150"
Background="White">
<Button Content="Edit"/>
<Button Content="View Details"/>
<Button Content="Comment"/>
</StackPanel>
</materialDesign:PopupBox>
</Grid>
</Border>
</UserControl>
taskListStack.Children.Clear();
var task1 = new clsTaskItem("Test1", "blablabla", "12:40", "02:30");
taskListStack.Children.Add(new ucTaskItem(task1));
var task2 = new clsTaskItem("Test2", "blablabla", "13:45");
taskListStack.Children.Add(new ucTaskItem(task2));
var task3 = new clsTaskItem("Test3", "blablabla", "11:45");
taskListStack.Children.Add(new ucTaskItem(task3));
var task4 = new clsTaskItem("Test4", "blablabla", "14:45");
taskListStack.Children.Add(new ucTaskItem(task4));
var task5 = new clsTaskItem("Test5", "blablabla", "17:45");
taskListStack.Children.Add(new ucTaskItem(task5));
var task6 = new clsTaskItem("Test6", "blablabla", "18:45");
taskListStack.Children.Add(new ucTaskItem(task6));
var task7 = new clsTaskItem("Test7", "blablabla", "13:23");
taskListStack.Children.Add(new ucTaskItem(task7));
var task8 = new clsTaskItem("Test8", "blablabla", "12:54");
taskListStack.Children.Add(new ucTaskItem(task8));
var task9 = new clsTaskItem("Test9", "blablabla", "17:23");
taskListStack.Children.Add(new ucTaskItem(task9));
var task10 = new clsTaskItem("Test10", "blablabla", "17:10");
taskListStack.Children.Add(new ucTaskItem(task10));
taskListStack.Children.Add(new ucTaskItem(task1));
taskListStack.Children.Add(new ucTaskItem(task2));
taskListStack.Children.Add(new ucTaskItem(task3));
taskListStack.Children.Add(new ucTaskItem(task4));
taskListStack.Children.Add(new ucTaskItem(task5));
taskListStack.Children.Add(new ucTaskItem(task6));
taskListStack.Children.Add(new ucTaskItem(task7));
taskListStack.Children.Add(new ucTaskItem(task8));
taskListStack.Children.Add(new ucTaskItem(task9));
taskListStack.Children.Add(new ucTaskItem(task10));
public class clsTaskItem
{
public clsTaskItem(string tsname, string tmname, string dline, string rtime = "00:00:00")
{
taskName = tsname;
teamName = tmname;
deadline = dline;
runtime = rtime;
}
public string taskName { get; private set; }
public string teamName { get; private set; }
public string deadline { get; private set; }
public string runtime { get; private set; }
}