I am using Page.BottomAppBar to place a CommandBar at bottom of the page.
It hides the bottom content of the main view. How can the app bar "push" the content to show it all? The content is a ScrollViewer.
UPDATE:
The Commandbar code is:
<Page.BottomAppBar>
<CommandBar>
....
</CommandBar>
</Page.BottomAppBar>
Then I have a grid, and the ScrollViewer is in one row of the grid. If I remove the app bar, everything works fine. The cursor is always visible, but when the app bar is visible, it overlays the content, like the images show.
The problem is that CommandBar overlays the page content. So, when InputPane appears, Windows ensures that the input pane doesn't cover the focused element, but Windows puts the CommandBar over the content, hiding the focused control. I know that CommandBar overlays the page content by design, but there is a way to avoid it?
Related
I want to keep an always topmost canvas on a listview. Canvas should be stretch on window and if the user tries to scroll listview, listview must scroll but canvas must be topmost transparently and user can see listview. My XAML tree like below that:
<Grid>
<ScrollViewer>
<ListView>
</ListView>
</ScrollViewer>
<Canvas Name="DxPanel"></Canvas>
</Grid>
I am trying to make a note taking app. The reqirements like that:
Each listview has image or richeditbox control (I have already done it)
The user can draw something on image or rich text
The listview must have infinite scroll ability and data of list view must retrieve from database and data and UI recycling must be supported.
The drawing layer must be endless scroll
I know this is hard challenge. I am planning to save stroke , and text data in db and image data in disk.
First of all, I need to say, there is no need to put a ListView inside a ScrollViewer, by default ListView can be scrolled if there are many items, this is because there is a ScrollViewer inside the template of ListView, you can refer to the default ListView styles and templates.
Then, if your Canvas keeps covering the ListView, there is no way for your ListView to get focused, let alone make the ListView scrolling. So I suggest you to rethink about this, why should your Canvas be topmost transparently?
If you want your ListView can be scrolled/focused, and in the meanwhile your layout in the Canvas can be seen, then you can put the ListView above the Canvas, by default the background of ListView is transparent.
You can leave a comment to tell us what is in your Canvas, why this Canvas should be stretch and placed on the top of the ListView, maybe we can try to find other way to solve your problem.
When app bar is present, the height of the app bar affects the content on the rest of the page.
For example, if the app bar has a Height of about 25px when ClosedDisplayMode="Minimal", the rest of the content on the page (rootGrid) would have its actual height of Screen Height - 25px. So the app bar is not overlay on page content.
This is visible especially when the content is VerticalAlignment="Center" or Bottom.
Is there any way to avoid this? Something like a ZIndex on the AppBar so that it is displayed over the page content and not trimming it on the bottom side of the screen.
It is possible to tell the renderer that the whole "window" should be used when rendering and not just the visible part. By calling Windows.UI.ViewManagement.ApplicationView.GetForCurrentView().SetDesiredBoundsMode(ApplicationViewBoundsMode.UseCoreWindow) the renderer will include the areas beneath the chrome of the window (ie the system tray on top of the screen and the app bar at the bottom). The chrome will always be on top of whatever is rendered from xaml.
ApplicationView is documented here.
If you don't want the system tray on the top of the screen to overlap the content, you'll have to compensate with a margin on the root container of your visible xaml.
i want to make my page scrollable.
as you can see in image that, there are 9 buttons and no room for adding more buttons
so, how can i add more buttons and make page scrollable so that any button can be selected?
i already tried to enclose all these button in scroll viewer but it didn't worked, it scrolls but when i release my finger from screen it quickly goes back i.e. i can see buttons which are at bottom but can't select those.
You have to give a particular height to your scrollviewer because by default s always get to set to the height of the contents in it so no scrolling :).
Just Set the Height Property of your Scrollviewer to some value. Like:-
<ScrollViewer Height="700">
Content..
</ScrollViewer>
cheers :)
When user clicks on the scroll bar arrow, the content shifts very slow(horizontal offset changes on 16). How can I increase the speed of shifting when I click on arrows?
(SmallChange doesn't work)
Unfortunately, it's quite hard-coded in the scroll viewer.
The only way I know of, is to make a new panel based on the panel that you want to use in the scroll viewer, and implement IScrollInfo for it.
Then, setting this panel as the content of the scroll viewer and setting CanContentScroll to true.
StackPanel implements IScrollInfo but other panels do not.
I have a Windows Forms VB.NET application, with a panel that contains a few other controls.
I set the panel's AutoScroll property to True, and that seems to appropriately apply the scroll bars when they are needed. The issue is that a user must scroll all the way to the right to access the vertical scroll bar. Is there a way to always show the vertical scrollbar no matter where the user is scrolled horizontally?
EDIT
I guess the main problem I have here is that I have a DataGridView inside of a panel. I want the panel to do the vertical scrolling, and not the DataGridView. Why is it when I turn off vertical scrollbars on the datagridview and have autoscroll on the panel, a vertical scroll bar is never shown?
You could add a VScrollBar on the right side of the panel and set code behind to move the panel scroll up and down.
or
A better option may be to switch your panel to a FlowLayoutPanel which provides quite a bit of control over the scroll handles both vertical and horizontal.
Check out MSDN and see how to use all of the properties of the FLP: