I want to make it so that my TabControl is vertically scrollable, but I can't seem to do it. The following sample acts as though there was no scrollviewer at all. I even tried putting the TabControl inside the scrollviewer, or putting it all in a grid and constraining the height of the grid, but nothing works.
<DataTemplate x:Key="tabControlTemplate">
<TabControl ItemsSource="{Binding guiItems}" DisplayMemberPath="Title" Height="Auto" Template="{StaticResource mainTabControlTemplateEx}">
<TabControl.ContentTemplate>
<DataTemplate>
<ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Auto" CanContentScroll="True">
<StackPanel Margin="2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<ItemsControl ItemsSource="{Binding guiItems }" ItemTemplateSelector="{DynamicResource templateSelector}"/>
</StackPanel>
</ScrollViewer>
</DataTemplate>
</TabControl.ContentTemplate>
</TabControl>
</DataTemplate>
The actual problem is not clear from the question.
You are not getting to see scrollviewer and the content inside is clipped? PLease confirm if that is the case.
If the problem is you are getting to see entire content taking up all the available space, and you would like to control that using scroll viewer, then you would need to set 'MaxHeight' property on Scroll Viewer. This would limit the height of your DataTemplate and would make verticall scroll bar visible if the inner content goes beyond the MaxHeight.
Hope that helps.
Related
I have a little problem. I want to put a view inside a stackPanel with a scrollbar. Basically, this is how I try to do this :
<DataTemplate x:Key="FirstTemplate">
<vw:FirstView DataContext="{Binding}"></vw:FirstView>
</DataTemplate>
<DataTemplate x:Key="SecondTemplate">
<vw:SecondView DataContext="{Binding}"></vw:SecondView>
</DataTemplate>
<DataTemplate x:Key="ThirdTemplate">
<vw:ThirdView DataContext="{Binding}"></vw:ThirdView>
</DataTemplate>
<selector:DimensionTemplateSelector x:Key="SomeTemplateSelector"
FirstTemplate="{StaticResource FirstTemplate}"
SecondTemplate="{StaticResource SecondTemplate}"
ThirdTemplate="{StaticResource ThirdTemplate}">
</selector:DimensionTemplateSelector>
<ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
<StackPanel>
<ContentControl ContentTemplateSelector="{StaticResource SomeTemplateSelector}"
Content="{Binding ASelectedValue}" />
</StackPanel>
</ScrollViewer>
The problem with this code is that I can scroll with the mouse wheel only if my mouse is over the scrollbar zone. If my mouse is inside the stackPanel (so, inside the ScrollViewer tags) but not directly over the scrollbar zone, trying to scroll with the mouse wheel won't result in anything.
I'm very not sure, but it seem like I should define a behaviour to my contentControl so it can handle scrolling. Anyone know how to do that or have a better explanation ?
Thank you
This may have been asked, but wasn't able to find the exact question.
Basically I have a WPF Window that I use as a Form. Now for the form, I have a StackPanel that helps keep all the controls and labels in place.
If the user has a smaller resolution display, the window size will be slower so for example 800x600. Some controls get lost.
For this I have added a ScrollViewer wrapped around the StackPanel. But the ScrollViewer never activates. Its probably got something to do with the stackpanel never being limited I suppose. But how can I activate the scroll viewer if the user resizes the window, or the window (when it opens) cannot display all contents properly?
I don't think its necesary to put my xaml here, but if you need it let me know. thanks!
A StackPanel has infinite size (doesn't respect its parent bounds) so you should wrap it in a Grid, which in turn is inside the ScrollViewer.
This may help you
<StackPanel Orientation="Vertical">
<ScrollViewer Name="scrollViewer1">
<DataGrid Name="dgDataList" ItemsSource="{Binding}">
<DataGrid.Columns>
<DataGridTemplateColumn Header="View" IsReadOnly="True">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
//control like textblock, image etc
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
</ScrollViewer>
<ScrollViewer Name="scrollViewer2" >
<DataGrid Name="dgDataList2" ItemsSource="{Binding}" >
<DataGrid.Columns>
<DataGridTemplateColumn Header="View" IsReadOnly="True">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
//control like textblock, image etc
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
</ScrollViewer>
</StackPanel>
I ran into a similar problem where the horizontal scrollbar wasn't being displayed even though there was content on the screen that was hidden.
<Window x:Class="WPFTestingPlatform.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="{Binding SystemParameters.PrimaryScreenHeight}"
Width="{Binding SystemParameters.PrimaryScreenWidth}"
ResizeMode="CanResizeWithGrip">
<ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
<StackPanel Width="1248" Height="600">
<TextBlock HorizontalAlignment="Right">Right</TextBlock>
</StackPanel>
</ScrollViewer>
</Window>
Set the window to have the size you would like for your window. Also set the Stackpanel size so it neatly fits all of your content.
The window size isn't as important as setting the StackPanel height/width otherwise the StackPanel will inherit it's size from the window.
You can resize this window and the scrollbars will appear/disappear (if ResizeMode="CanResizeWithGrip" is set). If you do not set HorizontalScrollBarVisibility, the scrollviewer will not display the horizontal scrollbar regardless of the content size.
Page scrolls without any issue when the mouse is over data grid. If the mouse outside datagrid page doesn't scroll.
<navigation:Page>
<Grid x:Name="LayoutRoot" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<ScrollViewer x:Name="scrollMainQueue" VerticalScrollBarVisibility="Auto" >
<StackPanel>
<StackPanel>
</StackPanel>
.......
<StackPanel>
<data:DataGrid AutoGenerateColumns="False" Name="grdWorkingDocs" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" MinHeight="50" Margin="5,0,5,5" CanUserResizeColumns="False" CanUserReorderColumns="False" LoadingRow="grdWorkingDocs_LoadingRow" AlternatingRowBackground="White" RowBackground="White" HorizontalGridLinesBrush="White" HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Disabled" />
</StackPanel>
</StackPanel>
......
</StackPanel>
</ScrollViewer>
</Grid>
scrollMainQueue.SetIsMouseWheelScrollingEnabled(true);
After some research Got the answer.
Basically we need to set the background color to the scrollviewer. It worked after that.
<ScrollViewer x:Name="scrollMainQueue" VerticalScrollBarVisibility="Auto" Background="White">
Answer is as mentione above. Applied background color to scrollviewer made is scrollable.
Background="Transparent" also works, if you can't use any color because of your design requirements.
I was using the Content Control to hold the inner view wrapped up with scroll viewer, the scroll viewer was only working on mouse wheel when the pointer is on any field and not on the empty area.
After seeing the above posts, I set the background color and it started working fine, though the solution looks unrelated [don't know how exactly related to the problem].
I have the following xaml which resides in a wpf user control -
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="30" />
<RowDefinition Height="*" />
<RowDefinition Height="30" />
</Grid.RowDefinitions>
<TextBox
x:Name="MyTxt"
TextWrapping="WrapWithOverflow"
Grid.Row="0"
/>
<ListView
x:Name="MyList"
ItemsSource="{Binding}"
Grid.Row="1"
/>
<Label
Grid.Row="2"
/>
</Grid>
This control is nested within a grid in a view. I would like to have the text box be a set height at the top of the grid, the label at the bottom showing as a fixed height at the bottom of the grid. I want the list view to fill the rest of the screen area.
The problem that I am having is the listview does not size correctly. If I have too many records that show up in it, it extends beyond the window and no scroll bars are available to scroll down. I therefore cannot get to the bottom to see the vertical scroll bar if the data stretches off to the right of the screen.
I was able to set the listview to a fixed height and that worked, but I would like it to be more dynamic and resize with the window if possible.
Does anyone have any tips that might get the sizing correct?
Thanks for any thoughts.
EDIT - Here is the xaml for the containing grid in the mainwindow view. this was adapted from the article by Josh Smith here
<Grid>
<Border
Style="{StaticResource MainBorderStyle}"
>
<HeaderedContentControl
Content="{Binding Path=Workspaces}"
ContentTemplate="{StaticResource WorkspacesTemplate}"
/>
</Border>
</Grid>
I do have the scrollviewer properties set as mentioned in some of the answers below.
Here is the datatemplate for the workspace
<DataTemplate x:Key="WorkspacesTemplate">
<TabControl
IsSynchronizedWithCurrentItem="True"
ItemsSource="{Binding}"
ItemTemplate="{StaticResource ClosableTabItemTemplate}"
Margin="4"
/>
</DataTemplate>
Can you just add these properties to the listview?
ScrollViewer.CanContentScroll = "True"
ScrollViewer.VerticalScrollBarVisibility="Visible" <!-- or "Auto" -->
Everything else looks ok to me. You have the 3 rows, 2 of which are absolute, the other stretching. You also have the listview in the 2nd row, so it should stretch with it.
if that doesn't work, try wrapping the ListView in a scrollviewer
<ScrollViewer>
<ListView/>
</ScrollViewer>
What is the VerticalAlignment of a ListBox by default? You might need to set the vertical alignment to Stretch.
<ListView
x:Name="MyList"
ItemsSource="{Binding}"
Grid.Row="1"
VerticalAlignment="Stretch"
/>
I was able to get it working. If I change the containing grid in the main window to use a ContentControl instead of a HeaderedcontentControl, it works as expected.
Thank for any help.
I have an ItemsControl in my user control with a scroll viewer around it for when it gets too big (Too big being content is larger than the viewable area of the UserControl). The problem is that the grid that it is all in just keeps expanding so that the scroll viewer never kicks in (unless I specify an exact height for the grid). See code below and thanks in advance.
<UserControl x:Class="BusinessObjectCreationWizard.View.TableSelectionPageView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<GroupBox FontWeight="Bold" Height="300px"
Header="Tables"
Padding="2">
<ScrollViewer>
<ItemsControl FontWeight="Normal"
ItemsSource="{Binding Path=AvailableTables}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<CheckBox Content="{Binding Path=DisplayName}"
IsChecked="{Binding Path=IsSelected}"
Margin="2,3.5" />
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</ScrollViewer>
</GroupBox>
</UserControl>
This user control is loaded here
<Border Background="White" Grid.Column="1" Grid.Row="0">
<HeaderedContentControl Content="{Binding Path=CurrentPage}"
Header="{Binding Path=CurrentPage.DisplayName}" />
</Border>
I would like to not specify the height.
If you remove the Height from your GroupBox (which, as far as I understand, is what you want to do), then it will fill its container, unless there's a panel upstream that imposes its own sizing rules.
I used this simplified version of your XAML. I removed the template and the binding, and hard-coded some items, to make this stand alone; those changes won't affect the way layout is done.
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
<GroupBox FontWeight="Bold" Header="Tables" Padding="2">
<ScrollViewer>
<ItemsControl FontWeight="Normal">
<TextBlock>Foo</TextBlock>
<TextBlock>Bar</TextBlock>
<TextBlock>Baz</TextBlock>
</ItemsControl>
</ScrollViewer>
</GroupBox>
</Window>
Run it, and you'll see that the content does indeed size to fit the window, and the scrollbar only enables when the window gets too small to see all three items. I believe this is what you want.
So the problem is most likely one of the parent panels, one you're not showing in your sample XAML. The problem you describe could occur if your GroupBox appears inside a StackPanel:
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
<StackPanel>
<GroupBox FontWeight="Bold" Header="Tables" Padding="2">
<ScrollViewer>
<ItemsControl FontWeight="Normal">
<TextBlock>Foo</TextBlock>
<TextBlock>Bar</TextBlock>
<TextBlock>Baz</TextBlock>
</ItemsControl>
</ScrollViewer>
</GroupBox>
</StackPanel>
</Window>
Now the GroupBox appears at the top of the Window, sized to exactly fit its contents. If you shrink the Window enough, the GroupBox will be cut off -- because it's sized to fit its content, not its container. This sounds like the problem you're describing.
The reason is that StackPanel asks its children what their ideal height is (based on their content), and uses that height. Without StackPanel (or something similar), the default is to respect the control's VerticalAlignment, and if that's set to the default value of Stretch, then the control is stretched to fill its parent. This means it won't be taller than its parent, which sounds like what you want.
Solution: remove the StackPanel (or whatever else is causing you problems) and use something else. Depending on what you're trying to accomplish, you might have better luck with a DockPanel or a Grid. Hard to tell without knowing more about your layout.
Edit: Okay, it looks like the problem is indeed the HeaderedContentControl parent -- but not directly. HeaderedContentControl isn't a panel, so it doesn't do any layout of its own (and its descendant, GroupBox, doesn't have this same problem). The problem is its default template -- which includes a StackPanel. The good news is, you're free to use a different template, let's say one with a DockPanel instead:
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<HeaderedContentControl>
<HeaderedContentControl.Style>
<Style TargetType="{x:Type HeaderedContentControl}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type HeaderedContentControl}">
<DockPanel>
<ContentPresenter ContentSource="Header" DockPanel.Dock="Top"/>
<ContentPresenter/>
</DockPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</HeaderedContentControl.Style>
<GroupBox FontWeight="Bold" Header="Tables" Padding="2">
<ScrollViewer>
<ItemsControl FontWeight="Normal">
<TextBlock>Foo</TextBlock>
<TextBlock>Bar</TextBlock>
<TextBlock>Baz</TextBlock>
</ItemsControl>
</ScrollViewer>
</GroupBox>
</HeaderedContentControl>
</Window>
If you leave off the <HeaderedContentControl.Style> part, this reproduces your problem; but with the style in place, it allows the GroupBox to fill its container, so the ScrollViewer will get a scrollbar when you want it to.
If the previous answer doesn't fix the problem, you could also try binding the Width, Height of your grid to the ActualWidth, ActualHeight of your parent UserControl. Something like:
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="WpfApplication.UserControl1"
x:Name="UserControl">
<Grid Height="{Binding ElementName=UserControl, Path=ActualHeight}"
Width="{Binding ElementName=UserControl, Path=ActualWidth}" />
In this case you aren't setting an explicit width and height but you are limiting the Grids width/height to the constraints of the UserControl it sits in.
I had the same issue, after reading this response I replaced all StackPanels with Grids in UserControl. It resolved the Scrollbar issue.
Try removing the grid entirely and setting the HorizontalAlignment and VerticalAlignment directly on the GroupBox. If a layoutpanel has only one child, it's often redundant... this migth be true in your case.
If that doesn't work... what's the parent of your grid control?
Why not just use a listbox instead of an itemscontrol, that has a built in scrollviewer.
They are different. If you do not want to have the items selectable, then don't use a ListBox. It is going to be heavier, and will also have the deselect a selection everytime the user clicks on an entry. Just put the ItemsControl in a ScrollViewer
I had the same problema with ListBox, it wasn't expanding and the scroll viewer didn't appear. I solved it as follows:
<UserControl x:Class="TesteView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid MaxHeight="710">
....
....
<StackPanel>
<ListBox MaxHeight="515"
ScrollViewer.HorizontalScrollBarVisibility="Hidden"
ScrollViewer.VerticalScrollBarVisibility="Auto"
ItemsSource="{Binding Path=Teste,Mode=TwoWay}">
....
....
</ListBox>
</StackPanel>
</Grid>
</UserControl>