I got something like:
1) <grid> with some rows -> 2) <stackPanel> -> 3) Expander -> 4) Expander content...
..and I can't force expander content to be stretched as long and as wide as possible by currently free space in the given grid.row (#1). Whatever I try, expander keeps using to take minimum necessary space to renders its content. But if I do something like MinHeight=500, then it's OK.
P.S. I had an idea to hack it. Just to create transparent line, stretched through the row, and then bind expander height to the actual height.. but it seems ugly to me. Maybe someone knows another way?
<Grid Name="GlobalPanel" VerticalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="0.7*" />
<RowDefinition Height="0.3*" />
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" Orientation="Vertical">
<Expander Name="MainExpander"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch">
<!-- HERE EXPANDERS CONTENT WHICH I WANT TO BE STRETCHED -->
</Expander>
</StackPanel>
</Grid>
Related
I have a ScrollViewer which includes a lot of content (datagrids, stackpanels, textboxes, labels, etc...), and outside of it I want to add a button (PRINT), and it is important that the button is not part of the ScrollViewer. My goal is that the top 90% of my screen is the scrollviewer and the bottom 10% is a "frozen panel" that always shows the PRINT button, and this should remain true when maximized and minimized.
After having a lo of problems with 'the property content is set more then once' I realized I need to add both my ScrollViewer and the Button inside another container, so far the only one that seems to work is GRID - but honestly after you read this if you have anything else to recommend I am open to suggestions, I only used GRID because it seemed to almost give me what I wanted.
This is my code right now:
[Code]
<Window DataContext="{Binding PrintView, Source={StaticResource Locator}}" Width="900">
<Grid Height="Auto">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<ScrollViewer Name="PrintView" Grid.Row="0" Height="Auto">
<StackPanel>
... a LOT of stuff ...
</StackPanel>
</ScrollViewer>
<Button Content="Print"
Margin="0,20,0,20"
Height="50"
Width="150"
FontSize="24"
FontWeight="Bold"
Grid.Row="1"
/>
</Grid>
</Window>
[Code]
When done like this my ScrollViewer doesn't have a Scrollbar so I see the first page but I cannot scroll down, also there is no PRINT button seen
One interesting test was to change the following:
<ScrollViewer Name="Apercu" Grid.Row="0" Height="600">
Now I see my scrollbar again (and I can scroll) and my PRINT button is beneth it and always visible (this is almost perfect) but when I maximumize my window the ScrollViewer stays 600 of height and as such well it doesn't acctually maximize (everything below the PRINT button is just white).
Any ideas? Is there another way I could specify my HEIGHTS or is there a different control I should be using (not GRID)?
Thanks,
Found it ...
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
And remove height from ScollViewer
I've tried almost every combination of alignments and margins, to no success. The ListBox is on a WPF page, which is bound to a frame on the main window.
The ListBox itself is fine. It aligns just as I expect it would. My ListBoxItem contains an Image and a TextBlock. The TextBlock gets cut off.
As you can see from the following image, things are mostly good.
The ListBox is appropriately offset from the left edge and the top of that blue box. The content Image and TextBlock are fairly centered and so is the ListBoxItem outline. This is on my development machine.
I thought the whole reason for using grids, grid lines, and alignment properties, was so we didn't have to set a hard coded size. That our controls would resize themselves. Which does actually work just fine for everything else.
But when I place this on a small screen, I get this:
The ListBox itself is still aligned correctly. But now the ListBoxItem is forced down. It's top alignment is still good, but the bottom is pushed down so we can't see the TextBlock or the bottom of the ListBoxItem.
Here's my XAML:
<Grid VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Margin="1">
<Grid.RowDefinitions>
<RowDefinition Height="292*" />
<RowDefinition Height="30*"/>
</Grid.RowDefinitions>
<ListBox Grid.Row="1" Name="lbButtons" Margin="2,0,0,1.5" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Visibility="Visible" >
<StackPanel Name="spListBoxItems" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Orientation="Horizontal">
<ListBoxItem Margin="0,0,0,0" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" >
<StackPanel Orientation="Vertical" HorizontalAlignment="Center" Margin="10,5,10,5">
<Image Source="/COBAN.CobanConsole.UI;component/Images/Buttons/Light/record48_light.png" />
<TextBlock Text="Record" Margin="5,5,0,0"></TextBlock>
</StackPanel>
</ListBoxItem>
</StackPanel>
</ListBox>
</Grid>
Not much to it. Any ideas on what's going on?
You're using * units on your grid row definitions. Those are relative measures: they just tell you what proportion of the space the rows can take up. If you need your listbox to have a specific height, you should change your second row to have an absolute size instead, like this:
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
My application UI is divided in 2 parts. Left side is Navigation Menu and Right is View Area where the selected Menu content is displayed. Now, one of the menu is reports. I am using Tabcontrol with Header and Content Template. Template has a ViewModel as DataType and content as the respective View which is a UserControl. This TabControl is inside a scrollviewer which is set as horizontal and vertical alignment to stretch.
The user control hosts a ContentPresenter inside a Grid which is bound to a ReportHost which has a reportviewer as child. I am using this ReportViewer to generate reports.
When the user opens a report, it opens in a new tab. It works fine till the number of tabs is such that the tabheaders are contained inside the viewing area. But as soon as more tabs are added, it causes the tabcontrol width to stretch, causing the content area of the tab to stretch and the contentpresenter also stretches causing horizontal scroll to appear.
This finally result in the report to stretch and due to some reason, unknown to me, the report overlaps the Navigation Area of the UI, as if it is not a part of the UI but is overlapping it. The whole report keeps on floating on top of the View Area and Navigation menu on scrolling.
I can fix it by providing the MaxWidth to the ScrollViewer but I don't want to do that. I would like the width of the tabcontroll or the Scrolviewer to be decided purely based on available View Area. How do I do this through the code or XAML without using fixed width.
I am not sure if I was able to explain the situation. Please let me know if more information or clarification is needed. I would be more than happy to provide details.
Edit: Adding Code for information.
<DataTemplate x:Key="TabContent" DataType="{x:Type VM:ReportViewModel}">
<View:Report/>
</DataTemplate>
<DataTemplate x:Key="TabHeader" DataType="{x:Type VM:ReportViewModel}">
<ContentPresenter Content="{Binding Path=TabHeader}"
VerticalAlignment="Center"/>
</DataTemplate>
<ScrollViewer HorizontalAlignment="Stretch" VerticalAlignment="Stretch"
HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock HorizontalAlignment="Left" TextWrapping="Wrap"
Text="Reports" VerticalAlignment="Top" Margin="10,13,0,0"
FontSize="18.667" FontFamily="Segoe UI" Foreground="White"/>
<Border BorderThickness="0" Margin="0,50,0,0"
Background="{DynamicResource Brush_HeaderNew}" Height="50" Width="Auto"
VerticalAlignment="Top"/>
<TabControl ItemsSource="{Binding ReportItems}" Grid.Row="1" Margin="0,20,0,0"
SelectedItem="{Binding SelectedReportItem}"
ContentTemplate="{StaticResource TabContent}"
ItemTemplate="{StaticResource TabHeader}"
/>
</Grid>
</ScrollViewer>
ScrollViewer presents to its child an infinitely large area on which to set itself out, because it reasons that it can just offer scrolling if it's bigger than the space available to ScrollViewer itself. Because yours has scrolling enabled in both directions, that means the TabControl can expand as much as it likes in either direction, and it's not going to be smart enough to know that it's inside a ScrollViewer and that you want the tabs to not take advantage of this virtual space.
From the sound of things, you might want to consider moving the ScrollViewer within the TabControl so that only the contents of the tab is scrollable rather than the whole set. You should be able to do that by modifying the tab content template.
edit: I'm rewriting almost the entire question because I realized the question was incorrect and confusing. I apologize for this, but the question had incorrect assumptions that made it impossible to answer. I originally tried to simplify it to make it easier to understand, but this made it impossible to replicate my problem.
If I have an DataGrid with a MinHeight in a ScrollViewer, I would expect that as my ViewPort shrinks, the ActualHeight of the element would be decreased until it hits MinHeight before the scrollbars show up.
Instead, it seems that when the datagrid's rows cumulative heights add up to more than the MinHeight, this value overrides MinHeight
Is there a way to do this without manually sizing everything and having a ton of code?
Example:
<ScrollViewer VerticalScrollBarVisibility="Auto" Background="Red">
<Grid x:Name="LayoutRoot" Background="Black" HorizontalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition MinHeight="20"/>
<RowDefinition Height="80"/>
</Grid.RowDefinitions>
<sdk:DataGrid AutoGenerateColumns="True" Name="dataGrid1" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" MinHeight="20" />
<Rectangle Fill="Blue" Width="100" Height="80" Grid.Row="1" />
</Grid>
</ScrollViewer>
If you were to populate this grid with some rows, if you maximize the window, the grid takes up most of the space and has white space after the rows. If you shrink it down, the layout takes away from the white space until that space runs out, then the root level ScrollViewer kicks in, even though MinHeight has not been reached.
If you replace the DataGrid with another rectangle, the behavior is different (obviously). The new rectangle would shrink down to height 20.
How do I achieve this with the grid? My requirements are to have nested scrollbars on my SL page (which I find distasteful, but it's not in my control). The idea is that the top level scrollbars are a "last resort" of sorts.
What about this:
<ScrollViewer>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="250" />
</Grid.RowDefinitions>
<Rectangle MinHeight="150" Background="Red" Grid.Row="0" />
<Rectangle Height="250" Background="Blue" Grid.Row="1" />
</Grid>
You did not have the Grid.Row values set on either of the rectangles.
You've not provided sufficient information to solve your specific problem. However, it is easy to demonstrate that the ScrollViewer does work in exactly the fashion you desire by distilling down to something as simple as:
<UserControl ...>
<ScrollViewer VerticalScrollBarVisibility="Auto">
<Border MinHeight="200" BorderBrush="Blue" BorderThickness="1" Background="Red"/>
</ScrollViewer>
</UserControl>
Put this in a standalone Silverlight application in the main page and you'll see that the ScrollViewer only displays the vertical scroll bar when the window is small enough. You can download the solution here.
This is because ScrollViewer itself has a border and padding that occupies little space of its own. Try considering little extra height that should match space of scrollbar border.
Another option will be to change the control template of scrollviewer and remove the border and extra space occupied around content presenter. And set horizontal scroll visibility to collapsed so it will not occupy space.
Ok I have a contentpresenter inside a grid cell:
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<WrapPanel Grid.Row="0" Grid.Column="0">
<RadioButton GroupName="a" IsChecked="{Binding Path=SpecifyRatedValues, Mode=TwoWay}">Specify</RadioButton>
<RadioButton GroupName="b" IsChecked="{Binding Path=SpecifyRatedValues, Converter={StaticResource invertBoolean}}">Auto generate</RadioButton>
</WrapPanel>
<Border BorderBrush="Black" BorderThickness="3" Grid.Row="1" Grid.Column="0">
<ContentPresenter Content="{Binding Path=RatedValues}"></ContentPresenter>
</Border>
</Grid>
The contentpresenter finds which UI element to use by the datatemplate defined under resources:
<DataTemplate DataType="{x:Type ViewModels:RatedValuesViewModel}">
<Views:RatedValuesView />
</DataTemplate>
Now, everything works as expected, except for one thing: the View which is placed inside the contentpresenter at runtime does not expand to fill the entire cell. It leaves a big margin on the left and right side.
How can I make the view inside the contentpresenter fill the entire available area?
HorizontalAlign="Stretch" and VerticalAlign="Stretch" are important; however, you also have to remember how Grids work. Grid units are either in absolute pixels, "Auto", which means they size to fit their contents (i.e. minimum size to show everything), or "stars" which means fill up all available space.
Set your second RowDefinition's height to "*". You may also want to set easily-distinguishable border brushes and thicknesses on your grid. Sometimes, it's easy to think X isn't filling up all the available space, when it's really X's container, or X's container's container that isn't filling up the space. Use bright primary colors and large thicknesses (3 or so) and you can tell quickly who's not filling things up.
Chaiguy got it! The View had an explict Width and Height which constrained the view when placed in the cell. Thanks :-)
You must set HorizontalAlign=Stretch, VerticalAlign=Stretch to both Border and Content Presenter to fill the space in grid. and make width=auto.