Is there a way for me to have the Window of my WPF application resize dynamically with the content? I tried setting the width and height to auto, but no go.
Set SizeToContent="WidthAndHeight" on the window and the window will dynamically resize based on its content size.
Use a resizable control like Grid and put all the controls in Rows/Columns. Also set HorizontalAlignment to stretch for each control inside the Grid.
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In WPF window, I have specified SizeToContent="WidthAndHeight".
I have a number of panels stacked up, of which I change the visibility (to Visible or Collapsed) as required. My window resizes itself according to the panel that I have set visible. No issues here.
My problem is with the resizing, that the window resizes with a jerk to the final size.
I want to animate this such that the resizing is smooth. And i want to do this in my XAML file.
Is there any solution for this???
P.S. - I have not set any Width or Height property in the window and I want to restrict myself from doing that.
I'm using Silverlight 4. I have a UserControl whose LayoutRoot is wrapped in a ScrollViewer. I'd like the scroll bar to only appear if the LayoutRoot overflows the page. It is possible to do it automatically, or should I write code to detect if the content will overflow and set the scrollbar visibility accordingly?
You should be able to do it automatically using the ScrollViewer.HorizontalScrollBarVisibility and ScrollViewer.VerticalScrollBarVisibility properties. Here's a list of all possible values for those properties (the ScrollBarVisibility enumeration):
Disabled
Auto
Hidden
Visible
I think "Auto" is what you're looking for:
Auto: A ScrollBar appears and the dimension of the ScrollViewer is applied to the content when the viewport cannot display all of the content. For a horizontal ScrollBar, the width of the content is set to the ViewportWidth of the ScrollViewer. For a vertical ScrollBar, the height of the content is set to the ViewportHeight of the ScrollViewer.
Hope this helps!
I'm having a problem where I have elements such as Listboxes and Rich Text boxes that I want to set to size automatically in xaml according to the size of the window, but I only want it to resize to the size of the window and then put scrollbars if the content is any bigger than that.
Unfortunately, the only way I can get scroll bars to work is if I set a specific height of the listbox/rich text box (which does not work because I want it to automatically resize to the height of the grid that it is contained within, which is generally the height of the window (auto).
Any help would be greatly appreciated.
You do not need to use fixed values for Width and Height - you should rather specify a minimum width/height for your controls using the MinWidth and MinHeight properties. Then try a layout similar to this:
<Window>
<ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
<Grid>
<ListBox MinWidth="500" MinHeight="250"/>
<!-- any other controls... -->
</Grid>
</ScrollViewer>
</Window>
The Grid generally uses all the space it gets if its alignment properties are set to Stretch and if at least one row/column is set to be star-sized. In this case, there are only one row and one column, implicitly created, both star-sized by default.
To make the ScrollViewer work, you need to somehow set a minimum size of your content controls because otherwise the ScrollViewer does not know when to activate the ScrollBars. In the example above, I have done that using the MinHeight and MinWidth properties of the ListBox, but you could also set these properties on the Grid's RowDefinitions and/or ColumnDefinitions.
Now, if you resize the window, so that the Width becomes smaller than 500, you will see that scrollbars will appear. Just check it out.
When I place a Datagrid in a WPF Grid Layout container, the datagrid lengthens the Grid Layout.
I want it to occupy only the space available on screen.
Make sure your Grid.ColumnDefinition or Grid.RowDefinition's Width or Height is not set to Auto. If you set it to a fixed size or a star size then the row/column should not resize.
If you're still having problems a code sample would be useful.
You should place your Datagrid into a ScrollViewer, and the ScrollViewer into your Grid cell.
the grid is placed inside a tabitem.
I tried the scrollviewer. but the only thing that happens:
the scrollviewer gets as large as the too long datagrid.
as the tabitem can vary in height, I would rather not like to specify a fixed height for the grid.
How do I make a Canvas stretch fully horizontally with variable width? This is the parent Canvas, so it has no parents, only children.
XAML Source: it displays in blend
http://resopollution.com/xaml.txt
Use a Grid as the top level element in your UI - it'll stretch to fill its container. Then put a Canvas with HorizontalAlignment="Stretch" inside the Grid and it'll behave the way you want.
<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Canvas Background="Blue"/>
</Grid>
That worked for me. The key is your top level UI element. While a Grid fills all available space by default, Canvases take up only as much room as their contents demand.
I'm guessing you've tried
canvas.HorizontalAlignment = HorizontalAlignment.Stretch
If this doesn't work, then what you could do is bind the Width and Height properties of the canvas to the ActualWidth and ActualHeight properties of the containing window.
You could use a dock panel to get it to fill the available width. The last item in a dock panel list of controls is automatically stretched to fill the remaining space.
<DockPanel>
<Canvas />
</DockPanel>
The canvas should do this automatically, unless you are manually setting the height and/or width. What kind of control are you trying to place the canvas on? Can you post your code?
The problem is that you're specifying the Height and Width. Without these properties, the control may appear to vanish in the designer, but it should size appropriately when you insert the canvas into another control.
If I recall correctly, the next version of WPF will have 'DesignWidth' and 'DesignHeight' properties that allow you to show the control in the designer with a given size without effecting it's measurement when inserted into other controls.