I am writing a canvas program, where on scale of canvas , it is occupying the row above to it. I understand this is a normal behavior that XAML read topdown.
So i am re-arranging the top row of the grid to the bottom of the document, I could able to overcome with the problem.
When i same the document, document format pref is making back to the top of the document.
Is there any thing like Zindex kind to keep the row on top most irrespective of the location in the document.
Example :
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
</Grid>
<Label Grid.Row="0"/>
<Canvas Grid.Row="1"/>
<Label Grid.Row="2"/>
When i Zoom Canvas, it is covering the label in Grid.Row="0".
Got it! It is Panel.ZIndex="<number>". Thank you
Related
I would like to place my button always on the middle of the bottom frame of ScrollViewer. I am going to change both the size of window, and a size of ScrollViewer, but I want my button to be always as on the pictures.
Owing to the fact that i am following MVVM, I have just xaml. Basically, I would like to bind (live) the button top position from the pattern:
button.top = (scrollViewer.top + scrollViewer.height) - button.height/2
I would be grateful for your suggestions.
[EDIT] I forgot to add that all other controls are in grid rows and columns.
You can try to use Grid to achieve that. If you need to change the ScrollViewer size, just change ScrollGrid Grid size instead. To overlap bottom or top content, you can use negative margins for the button.
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="100"/>
<RowDefinition Height="*"/>
<RowDefinition Height="100"/>
</Grid.RowDefinitions>
<Border Background="Red"/>
<Border Background="Red" Grid.Row="2"/>
<Grid x:Name="ScrollGrid" Grid.Row="1">
<ScrollViewer></ScrollViewer>
<Button Width="100" Height="100" VerticalAlignment="Bottom" HorizontalAlignment="Center"/>
</Grid>
</Grid>
I'm having trouble vertically sizing the CheckListBox control from https://wpftoolkit.codeplex.com/. I'm a week-old newbie in WPF, so this is probably a general issue with (vertical) sizing.
Given my grid, I want the first 5 rows to size whatever size, they need to be, and in my viewport, I want the CheckListBox control in row 6 to simply fill the remaining space vertically.
My problem is, that when I fill the CheckListBox with a lot of elements, the control just expands / overflows the viewport. What I want it to do, is to assume the height of the remaining space vertically, which will make it display an inner scrollbar.
<Grid Grid.Column="0">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Label Grid.Row="0">Some title</Label>
<RadioButton Grid.Row="1" GroupName="NameSortRadioButtonGroup">Firstname Lastname</RadioButton>
<RadioButton Grid.Row="2" GroupName="NameSortRadioButtonGroup">Lastname, Firstname</RadioButton>
<TextBox Grid.Row="3" Margin="0,5" />
<Label Grid.Row="4" Content="{Binding ElementName=MyCheckListBox, Path=SelectedItems.Count}" />
<xctk:CheckListBox
Grid.Row="5"
Name="MyCheckListBox"
VerticalAlignment="Stretch"
VerticalContentAlignment="Stretch"
Height="Auto"
/>
</Grid>
I have left out some parent elements to simplify. The Grid is in a grid, that's in a canvas, that's in a grid, and this outer grid is direct child of the Window element.
I have tried wrapping the CheckListBox control in a StackPanel with Height="Auto" (to eliminate the possibility of a bug in the CheckListBox) and also here to set the height of the CheckListBox using
Height="{Binding ElementName=CheckListBoxStackPanelWrapper, Path=ActualHeight}"
I also initially tried to do the whole thing with first a StackPanel and later a DockPanel instead of the Grid control.
In all cases, the CheckListBox just flows out of the window/viewport. If I give it an explicit height, it behaves correctly, but I obviously want my window to be resizable.
What shall I do?
To sum up comments because your outer control is a Canvas which does not restrict its child elements From MSDN:
Child elements of a Canvas are always given the full size that they desire
which means that Grid will be given as much space as it require. One solution is to remove the Canvas part or restrict the size size of Grid or expanding row
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 just inherited an old WinForms app with a UI layout like this:
I'm tasked with updating several things about the software one of which is porting it to WPF which I've not previously worked with. I'm also told that the new WPF UI must look identical to the existing UI layout so I'm trying to figure out how to create that layout in WPF. I need a toolbar across the top of the window which stretches the entire width of the fixed-size window. Can I do that in the default grid or do I need a dockpanel to do that? Also, I'm assuming that I would use a grid with 2 columns and 3 rows to layout the six groupboxes?
Anything you can do with a DockPanel can also be done with a Grid -- the DockPanel is just a shortcut. So yes, you can do all this with the default Grid.
As for how to do the layout: it depends on how you want things to resize. Does everything stay proportional when you resize? If so, a single Grid with three columns (and percentage sizes for the ColumnDefinitions) would be fine. You would actually need four rows, though, not three -- the first RowDefinition would be for the ToolBar (using ColumnSpan="3") and would need Height="Auto" so it uses the ToolBar's default size; the remaining rows would be percentage-sized.
Try that, see if it works for you. If the resizing needs to be more complicated than just proportional, then post a second screenshot of the window at a different size, and we could try to help you further.
Personally I would use a DockPanel for the Menu/Content areas, then use a Grid in the Content Area to define the GroupBoxes
<DockPanel>
<Grid x:Name="MenuRegion" DockPanel.Dock="Top" />
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
</Grid>
<Grid Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="2" />
<Grid Grid.Row="0" Grid.Column="2" />
<Grid Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" />
<Grid Grid.Row="1" Grid.Column="2" />
<Grid Grid.Row="2" Grid.Column="0" />
<Grid Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="2" />
</DockPanel>
Of course, you could also make the Menu area part of the Grid and set it to span all rows, but I personally like keeping them separate.
Grid with 3 row (one for the menu). Since you have uneven spacing in the rows just a single column on the main grid. Then grid in the grid for the two column spacings.
I am creating silverlight video player.
I have organized my player as grid.
First row is video, second and third are control panels with buttons.
When I switch to fullscreen mode I want to set specified image on the top.
So i load image, resize and can't make this image to cover all elements(video,panels).
I try to make this image only visible, and cant do that.
I think there is possible to create an "element" and set it somehow to cover.
I would like do this like splash because i guess collapsing my rows isn't good idea.
Thanks in advance.
You should be able to do this by first making sure your image element is the last child in the Grid and by adding Grid.RowSpan value to it containing the number of rows in the grid:-
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<MediaElement ... />
<StackPanel Orientation="Horizontal" Grid.Row="1">...</StackPanel>
<StackPanel Orientation="Horizontal" Grid.Row="2">...</StackPanel>
<Image Source="SomeImageUrl" Grid.RowSpan="3" />
</Grid>
An alternative to placing the Image at the end of the Grid's child list is to give it a higher ZIndex using rather unintuitively Canvas.ZIndex property.