I have a grid in Silverlight 3. The height of the grid row is set to "Auto". I have a ListBox in one of the grid cells. I want this listbox to fill 100% of the available space, even if it does not have enough items to do so. Currently, I have the ListBox height set to "Auto", and it will expand as items are added, and display a scroll bar when it reaches the size of the cell.
Any help is appreciated.
Set the vertical alignment on the Listbox, and remove the grid height being Auto, that is going to restrict the growth to what is absolutely needed.
VerticalAlignment = "Stretch"
Related
in WPF is there a way to setup a TextBlock so its MinHeiht and MinWidth are automatically set so its content is completely visible or should I code this by myself?
Thanks.
EDIT: The TextBlock lives inside a grid row, I would like to setup the Min sizes of the row to allow the TextBlock to show its entire content.
If you set the columndefinition width for the textblock's column to 'Auto', it will grow automatically to accommodate the growing textblock.
I have a peculiar requirement related to setting width of controls in silverlight. Generally when UI renders in Silverlight, width of container control is calculated based on widths of child controls. I have a requirement where layout of the application can change drastically. One of the scenarios is that I have a Grid cotaining listboxes in each column. These column can have several user controls. Now I want to set width of user controls to expand as much as possible to stretch for width of listbox control. Is there some way to do this? If I set fixed width of user controls, it could leave some area blank on UI or horizontal scroll in listbox may appear. If I set "Auto" width of user control, there could be some unused space in UI. Is there any way to deal with this issue?
Set the HorizontalAlignment of your usercontrols to System.Windows.HorizontalAlignment.Stretch. Note that you should leave your Width unset if you do this, as it takes precedence over HorizontalAlignment.
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.
Before asking this question I have looked at all related questions, but have not found anything relevant.
In my application I have toolbox style bar, which is basically stack panel with bunch of buttons. User may change which buttons are shown in toolbar.
Window width may be changed, but it can not be smaller then width of toolbar.
At first I was hoping to bind the MinWidth property to the StackPanel Width property and create converter that adds few pixels to Width of the StackPanel. The problem is that my converter does not get Width of StackPanel, just NaN as value :(
Unfortunately, StackPanel width is set to Auto and I can not change that.
Is there any way I can make my Window MinWidth dependable on Width of StackPanel?
Use ActualWidth, not Width.
Width is the requested width, or NaN for "Auto", ActualWidth is the, well, actual width after all the layout is calculated.
Why doesn't a textbox stretch to fill space in a stackpanel? Is this by design? In a grid, the textbox stretches as expected.
Yes, it's by design. The StackPanel will allocate the space the TextBox asks for. If you haven't set a width on the TextBox, it will require only enough width to fit its text.
Kent's answer seems right.
To still force override the StackPanel behavior, I think you'd need to dynamically compute-set the Width property of the contained elements OR some funky override of MeasureOverride. I'd rather use another layout manager/panel. Some things I noted..
The default value for HorizontalAlignment and VerticalAlignment properties of child elements is Stretch (if you don't specify one explicitly).
The StackPanel will stretch elements based on its Orientation property value. So
Orientation=Horizontal means all elements will be vertically stretched to max. Elements flow horizontally.
Orientation=Vertical means all elements will be horiz stretched to max. Elements flow vertically.
Unless explicitly specified, Width and Height of child elements are NaN. If you specify an explicit value, StackPanel will honor them over the Horiz and Vert Alignment settings.
The StackPanel itself has HorizontalAlignment and VerticalAlignment that adds a further layout twist. You can experiment with this example.
StackPanel
The default value is stretch for both
HorizontalAlignment and
VerticalAlignment of content that is
contained in a StackPanel.
HorizontalAlignment
When Height and Width properties are
explicitly set on an element, these
measurements take higher precedent
during layout and will cancel the
typical effects of setting
HorizontalAlignment to Stretch.
I needed items to be sized evenly, but stacked vertically.
I used a UniformGrid, and set the Columns property to 1. (tested with a TextBox, and it stretches like you want)