I have a Grid defined in my WPF application. I want to wrap a Border around the Grid itself. My problem is, the Border is filling the area available to the parent area. Because this, the Border is huge, but my content is small. My XAML is defined as follows:
<Grid>
<Border CornerRadius="0,0,2,2" BorderBrush="Black" BorderThickness="3" Margin="4">
<Grid HorizontalAlignment="Center">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<TextBlock Text="{Binding Path=Description}" />
<TextBlock Text="{Binding Path=Disclaimer}" />
</Grid>
</Border>
</Grid>
What am I doing wrong? How do I fix this?
Thanks!
you have the border inside your grid. do it like this <Border><Grid>...</Grid></Border>
Related
I have a UserControl in my WPF application. The UserControl has a listbox and could be any size, and underneath are some buttons.
When I place my UserControl in one of my Views, I would like it resize vertically as the parent resizes. BUT, I'd like the ListBox to decrease in heigh, not the entire control. This would mean on smaller screens, the buttons remain on screen but they don't see much content in the ListBox. I can use a MinHeight to ensure the buttons and at least 1 item in the listbox is visible!
I found similar question such as WPF user control does not resize with main window but my code doesn't have any height or width
My UserControl
<Grid>
<StackPanel>
<ListBox ItemsSource="{Binding MessageList" ></ListBox>
<WrapPanel HorizontalAlignment="Center">
<Button Content="Expand" HorizontalAlignment="Left" Margin="0,0,40,0"/>
</WrapPanel>
</StackPanel>
</Grid>
And the View
<Grid>
<StackPanel>
<uc:RecentList MessageList="{Binding Messages}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
</StackPanel>
</Grid>
It doesn't matter how I resize my View, the UserControl appears to stay at the exact same size.
I tried the ViewBoxbut this was scaling everything!
I also tried (in the UserControl)
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<ListBox ItemsSource="{Binding MessageList, RelativeSource={RelativeSource AncestorType=UserControl}}" Grid.Row="0"></ListBox>
<WrapPanel Grid.Row="1" HorizontalAlignment="Center">
<Button Content="Expand" HorizontalAlignment="Left" Margin="0,0,40,0"/>
</WrapPanel>
</Grid>
But no difference.
StackPanel does not stretch its child elements in the direction of its Orientation.
So remove all StackPanels and define two rows in the Grid in the UserControl:
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<ListBox Grid.Row="0" ItemsSource="{Binding MessageList ...}"/>
<WrapPanel Grid.Row="1" HorizontalAlignment="Center">
<Button Content="Expand" HorizontalAlignment="Left" Margin="0,0,40,0"/>
</WrapPanel>
</Grid>
In main view:
<Grid>
<uc:RecentList ... />
</Grid>
Take a look at the Panels Overview article on MSDN.
I have a Window with a Grid inside:
<Grid KeyboardNavigation.TabNavigation="Local">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" MinHeight="70" />
<RowDefinition Height="*" />
<RowDefinition Height="25" />
</Grid.RowDefinitions>
<ContentControl Grid.Row="0" Content="{Binding ChildViewModel.View}" />
<DockPanel Grid.Row="1" Visibility="{Binding SearchResultViewVisibility}">
<GridSplitter DockPanel.Dock="Top" Background="LightGray" Height="5" HorizontalAlignment="Stretch" VerticalAlignment="Top" IsTabStop="False"/>
<Views:SearchResultView DataContext="{Binding SearchResultViewModel}" />
</DockPanel>
<UserControls:GradientBackgroundControl Grid.Row="2" Height="25">
<Validators:FocusSummaryControl x:Name="FocusSummary" ValidateOnlyFocusedElement="False" />
</UserControls:GradientBackgroundControl>
</Grid>
The ContentControl gets a UserControl with this Grid set:
<Grid KeyboardNavigation.TabNavigation="Local">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition Height="35" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="80" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="80" />
<ColumnDefinition Width="80" />
</Grid.ColumnDefinitions>
<ScrollViewer Grid.Row="0" Grid.ColumnSpan="4">
<StackPanel>
...
</StackPanel>
</ScrollViewer>
The problem now is, that the ScrollViewer in the UserControl doesn't scroll. The content of the UserControl set to the ContentControl is heigher and the overflow ist just hidden.
If I am not wrong, StackPanel requires a Height to be set for scroll functionality to work because StackPanel, by design, grows in one direction (based on Orientation).
To confirm whether this is the cause of your problem, please test by setting the height of StackPanel to a fixed height. Alternately, you may want to replace the StackPanel with say DockPanel and see the behaviour. Also there is a ScrollViewer.CanContentScroll property that you may want to fiddle with.
Let us know the result of this test.
I think you need to rearrange things a little bit. My suggestions (I'm sure there are infinite variations that would work):
First, add a new row to your grid (Height="Auto") and set the height of your top row (with your ContentControl in it) to "*"
<Grid.RowDefinitions>
<RowDefinition Height="*" MinHeight="70" />
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
<RowDefinition Height="25" />
</Grid.RowDefinitions>
Second, move your GridSplitter out of the DockPanel. Put the splitter in row 1 and the dockpanel in row 2.
<ContentControl Grid.Row="0" Content="{Binding ChildViewModel.View}" />
<GridSplitter Grid.Row="1" Background="LightGray" Height="5" HorizontalAlignment="Stretch" VerticalAlignment="Top" IsTabStop="False" ResizeBehavior="PreviousAndNext"/>
<DockPanel Grid.Row="2" Visibility="{Binding SearchResultViewVisibility}">
<Views:SearchResultView DataContext="{Binding SearchResultViewModel}" />
</DockPanel>
Note that you'll probably also have to set the ResizeBehavior for your GridSplitter as shown above. I hope this will get you close to what you want.
PivotItem can't scroll down... Anyone has any ideas as to how I can remedy this?
For whatever the reason just won't scroll down when content that is bound inside the listbox is longer than the height of the page. I tried adding a grid inside the pivotitem with height set to auto, but to no avail.
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<controls:Pivot Height="Auto">
<controls:PivotItem Header="Main Information">
<Border CornerRadius="10" Background="#FF5C7590" Height="Auto" Padding="2" BorderThickness="1">
<ListBox x:Name="lbxPropertyItems">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<TextBlock Margin="5, 0, 0, 0" Grid.Column="0" Text="{Binding Label}" />
<TextBlock Grid.Column="1" Text="{Binding Value}" TextWrapping="Wrap" />
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Border>
</controls:PivotItem>
</controls:Pivot>
</Grid>
Thanks for any advice.
The issue is that a StackPanel has an infinite layout space in which ever orientation it is set, so the ScrollViewer included in the ListBox never gets activated in that direction. The best way to handle it is to host it inside a Grid control with row or column definitions.
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="30"></RowDefinition>
<RowDefinition ></RowDefinition>
</Grid.RowDefinitions>
<Expander >
<Border Background="Green" Height="50" Width="150"></Border>
</Expander>
<Button Content="ok" Height="20" Grid.Row="1" VerticalAlignment="Top"></Button>
</Grid>
Ummmm if I understand you correctly, you want to have your Expander on top of your Button?
In that case, just have both controls share the same grid cell. You will probably have to adjust your Button's margins or alignment to position it correctly
<Grid>
<Expander Canvas.ZIndex="0">
<Border Background="Green" Height="50" Width="150"></Border>
</Expander>
<Button Canvas.ZIndex="1" Content="ok" Height="20" VerticalAlignment="Top" Margin="0,30,0,0" />
</Grid>
It sounds like you need a canvas here as your parent container. Using a canvas you can use the SetZIndex method to change the Z index of various child controls, which causes one control to render in front of/"over" another control.
See this MSDN documentation on the method
i have the following problem. as far a i put my Textboxes in a scrollviewer my ValidationError Adorner get cut by the ScrollViewer. i found some answers to Adorner and ScrollViewer which say i need to retemplate my scrollviewer and add an adornerdecorator. but this makes no sense to me and it doesnt help either.
as far as i know should the Validation Adorner rendered in the nearest AdornerDecorator. the ScrollViewer by default has no AdornerDecorator. so does anybody know why my ValidationAdorner get cut?
I also looking for a solution :)
EDIT: it seems the ScrollContentPresenter which comes from the ScrollViewer Template cause the problem, because it has a AdornerLayer by default. Any ideas how to solve my issue?
EDIT2:
is there a way to create a new ScrollConntentPresenter Template without a Adornerlayer?
or is there a way to remove a the Adornerlayer from the VisualTree?
or can i force the Adornerlayer to render in a" higher/most top" AdornerLayer?
or can i have Scrolling Content without a ScrollViewer?
here is my xaml:
<UserControl>
<AdornerDecorator>
<Grid x:Name="RootControl">
<Grid.RowDefinitions>
<RowDefinition Height="auto" MinHeight="50"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid x:Name="main" Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Border x:Name="InputBorder" Grid.Column="0">
<ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
<Grid x:Name="InputContainer" HorizontalAlignment="Stretch">
<Grid.RowDefinitions>
...some rows...
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
...some columns...
</Grid.ColumnDefinitions>
<TextBox .../><!--this Validation Adorner get cut by scrollviewer-->
</Grid>
</ScrollViewer>
</Border>
</Grid>
</Grid>
</AdornerDecorator>
</UserControl>
here is my Validation Template:
<ControlTemplate x:Key="ValidationTemplate" >
<DockPanel>
<AdornedElementPlaceholder Name="MyAdornedElement" />
<Grid>
<Border Background="{StaticResource BrushError}" Margin="3,0,0,0" x:Name="ErrorControl" BorderBrush="White" BorderThickness="1">
<TextBlock Margin="10,3,5,2"
Text="{Binding ElementName=MyAdornedElement,Path=AdornedElement.(Validation.Errors).CurrentItem.ErrorContent}"
Visibility="{Binding ElementName=MyAdornedElement,Path=AdornedElement.Visibility}"
Foreground="White" FontWeight="Bold">
</TextBlock>
</Border>
<Path x:Name="path" Margin="3,0,0,0" Data="M 0,10 L 10,0 " Fill="{StaticResource BrushError}"
StrokeThickness="2" Stroke="White"
/>
</Grid>
</DockPanel>
</ControlTemplate>
the behavior is intended. A ScrollViewer is able to hide some of it's contents (ie the content lying in the extent). Showing an Adorner for such content that doesn't get clipped, results in a strange UI.
What you should be able to do in the ValidationTemplate though is putting the Grid element inside a Popup control. Please try that and report if it worked.