I am trying to align a textblock vertically and horizontally center in a stack panel which is there in Listview but i am only able to get text vetically center but not horizontally. Plus the text is not getting wrapped. Here is the code that i have tried:
<ListBox Name="lstTiles" Margin="12,0,-12,0" Grid.Row="1" SelectionChanged="lstTiles_SelectionChanged">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<toolkit:WrapPanel/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Background="{StaticResource PhoneAccentBrush}" Width="145" Height="80" Margin="8,8,0,0" Orientation="Vertical" >
<TextBlock Text="{Binding Name}" Tag="{Binding ID}" Style="{StaticResource PhoneTextNormalStyle}" FontSize="15" TextWrapping="Wrap" TextAlignment="Center" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
How can i achieve text vertically, horizontally and textwrap?
It looks like since you have the orientation of the StackPanel set to Horizontal, you're putting textblocks next to each other rather than on top of each other. Since the StackPanel elements take the size of their children, you would be able to visualize this as a horizontal, side-by-side, listing of textblocks. Since each textblock takes the size of the text that is in it, you are going to see blocks that are of varying widths, so centering horizontally is going to have no effect.
You could use margins (a pain) to accomplish equal widths. I don't recommend this.
You could also put grids of a set width in the stack panel, and put the textblocks on the grid. You may be able to set the width of the textblocks to get the right effect, but I can't test this at the moment, and I don't remember if it will cause the text to stretch or not.
For text wrapping, I assume you're talking about within the textblock, and that's easy - just set the textblock's TextWrapping property to Wrap.
Try setting the HorizontalContentAlignment and VerticalContentAlignment properties on the listboxitem. I don't have my dev computer now, so I can't experiment, but here is a post that might help you: Silverlight 3: ListBox DataTemplate HorizontalAlignment. Look at both of the first two answers, and see which one might be most helpful in your situation, substituting center, of course, in place of left, top, or stretch.
Related
In the header of my Expander I am trying to place a few buttons. I want these buttons to be on the far right, however any element I add inside the header is reduced to it's minimum size regardless of the horizontal alignment rules.
<StackPanel Grid.ColumnSpan="4" Grid.RowSpan="4">
<Expander ExpandDirection="Down" IsExpanded="True" FontSize="14" FontWeight="Bold" Margin="5" BorderThickness="1" BorderBrush="#FF3E3D3D">
<Expander.Header>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
<TextBlock Text="Greeting and Opening" VerticalAlignment="Center" HorizontalAlignment="Center"/>
<Button x:Name="GreetingCheckAll_Button" Content="Check All" HorizontalAlignment="Center" Margin="5,0,0,1" VerticalAlignment="Center"/>
</StackPanel>
</Expander.Header>
I want to get that button to the far right instead of to the left, as you can also see the stack panel element is only as large as it needs to be. What do I need to do to allow for the stack panel to stretch across the entire width so I can align the button to the right?
Thanks guys.
Edit: Tried using the docking panel suggestion instead (after looking at the panels overview, that seems the right way to go). I still end up with the same constraints, the panel will not stretch across the entire width of it's parent element unless I manually set it's width in pixels.
What you want is not a StackPanel, you want something like the DockPanel or Grid
Where you set the first Content as TextBlock, then Dock a button to the right.
Or a Grid.
I got a weird problem on my xaml, in a stackPanel.
My stackPanel contains a textbox, and a button.
This should be on the same line (if possible, depending on the text width).
The problem is :
if the stackPanel have Orientation="Vertical", the button will go to the line bellow the text.
if the stackPanel have Orientation="Horizontal" , the line will not doing any break line, so all the line will go out of my grid.
<StackPanel Name="spRemplir"
Grid.Row="2"
Grid.ColumnSpan="6"
Width="560"
Margin="5,5,5,5"
Orientation="Horizontal"
VerticalAlignment="Center">
<TextBlock FontWeight="Bold"
Text={Binding Text}
TextWrapping="Wrap"/>
<Button Name="btRemplir"
Margin="5,0,0,0"
Width="150"
Content="Remplir"/>
</StackPanel>
How can I obtain a stackPanel, that will break lines if necessary, and have a text and a button on the same line?
Update with Wrapanel thanks to Eli Arbel :
<toolkit:WrapPanel Name="spRemplir"
Grid.Row="2"
Grid.ColumnSpan="6"
Margin="5,5,5,5"
Width="560"
Orientation="Horizontal">
<TextBlock FontWeight="Bold"
Text={Binding Text}
TextWrapping="Wrap"/>
<Button Name="btRemplir"
Content="Remplir"/>
</toolkit:WrapPanel>
But, the button still on the next line, while there is enough space after the text on the same line.
Itried removing the Width on the panel, but then, there is no more wrapping...
I don't understand. Even if there is stackPanel on the same Grid, they should not disturb the wrap panel right?
Thank you.
You can try a WrapPanel from the Silverlight Toolkit. Note this panel will not allow you to stretch the items to the container width.
You should also look into removing the fixed Width of the panel.
Try using a Grid instead of a StackPanel. The problem with StackPanel is that they do not report up the Visual Tree that they are out of room. This is not a bug, it's just the way they are and it's appropriate when you need it. But I avoid them except on the innermost elements. But don't have StackPanels in StackPanels as you will lose TextWrapping/Scrolling and just have elements fall of the right or bottom of the page.
Second, make sure that your outer container is Set so that the width is Constrained. For example, in your layout root, give it one Column, and set the Width for * which means = "The available space, but not more"
Once you have your outer container constrained, then your TextBlock will wrap properly.
Greg
Consider using a WrapPanel instead stack panel: http://wpftutorial.net/WrapPanel.html
I'm presenting text in a wpf TextBlock control (.Net 3.5). The content of the textblock varies depending on what the user selects in a list box. The text wraps, so I don't need an horizontal scroll bar. However, there is often more text than the amount the window can display, so I need a vertical scroll bar.
As I started searching I quickly found that the answer is to wrap the TextBlock in a ScrollViewer. However, It Does Not Work (TM) and I'm hoping someone can help me work out why.
This is the structure of the UI code:
<Window x:Class=..>
<StackPanel>
<ListBox HorizontalAlignment="Stretch"
VerticalAlignment="Top" Height="200"
SelectionChanged="listbox_changed" SelectionMode="Single">
</ListBox>
<Button Click="Select_clicked">Select</Button>
<ScrollViewer VerticalScrollBarVisibility="Auto">
<TextBlock Name="textblock" TextWrapping="Wrap"/>
</ScrollViewer>
</StackPanel>
</Window>
When the user selects an item in the list box, some text associated with this item is presented in the TextBlock. I would have thought that the code as it stands should have been all that's required, but it never provides me with a scroll bar.
Searching and experimenting have given me two clues: the root of the problem might be related to me updating the content of the TextBlock dynamically, and that the TextBlock does not resize itself based on the new content. I found a posting that seemed relevant that said that by setting the Height of the TextBlock to its ActualHeight (after having changed its content), it would work. But it didn't (I can see no effect of this).
Second, if I set the height (during design time) of the ScrollViewer, then I do get a vertical scroll bar. For instance, if I set it to 300 in the xaml above, the result is almost good in that the window as first opened contains a TextBlock with a vertical scroll bar when (and only when) I need it. But if I make the window larger (resizing it with the mouse during runtime), the ScrollViewer does not exploit the new window size and instead keeps its height as per the xaml which of course won't do.
Hopefully, I've just overlooked something obvious..
Thanks!
Because your ScrollViewer is in a StackPanel it will be given as much vertical space as it needs to display it's content.
You would need to use a parent panel that restricts the vertical space, like DockPanel or Grid.
<DockPanel>
<ListBox DockPanel.Dock="Top" HorizontalAlignment="Stretch"
VerticalAlignment="Top" Height="200"
SelectionChanged="listbox_changed" SelectionMode="Single">
</ListBox>
<Button DockPanel.Dock="Top" Click="Select_clicked">Select</Button>
<ScrollViewer VerticalScrollBarVisibility="Auto">
<TextBlock Name="textblock" TextWrapping="Wrap"/>
</ScrollViewer>
</DockPanel>
I have a listview with an itemtemplate:
<ListView x:Name="messages" HorizontalAlignment="Left"
Background="{x:Null}" BorderBrush="{x:Null}" Foreground="Black">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Style="{DynamicResource h3}" Text="{Binding}"
Margin="10" MaxWidth="850"/>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
This listview is in a vertical stackpanel. So its width is the same as the stackpanel's width.
The listview must show messages that could be very long. I'm trying to make sure that when a message is too long for the available width, the textblock gets extra height and the text gets displayed on 2 lines.
I can google a lot of ways to have this achieved with a fixed height, but since I don't know in advance if I'll need more than 1 line, I'd like to make sure it happens automaticly.
I don't want every item to have the height of 2 lines, only when it's needed.
How can I achieve this?
Have you tried the TextWrapping property? It seems that it would do what you want.
I have a list box which is of a certain fixed width. The number of items in the listbox varies. Is there a way to center the contents of the list box? The "Content Presenter" of the ListBoxItem ,centers each item inside its Template instead of centering it with respect to the entire listbox width.
Sorry about not replying earlier. The issue was with the width of the ItemsPanelTemplate which I was using in my Listbox. Earlier Width was set to 925. Changing this Width to MaxWidth worked. The code:
<ItemsPanelTemplate x:Key="ItemsPanelKey">
<Contact:AnimatedWrapPanel HorizontalAlignment="Center" MaxWidth="925">
<Contact:AnimatedWrapPanel.Interpolation>
<interpolate:BackInterpolation Amplitude=".5" Suppression=".2" EdgeBehavior="5"/>
</Contact:AnimatedWrapPanel.Interpolation>
</Contact:AnimatedWrapPanel>
</ItemsPanelTemplate>
Not sure, but sounds like what you want is a custom item template that centers each item. If I'm right, the only tricky thing is that the template has to be the same fixed width as the listbox. So if your listbox contains some object Foo and Foo.Text is a simple text property to be displayed, you could do it like so in Xaml:
<ListBox x:Name="TheListBox" Width="300">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid Width="300">
<TextBlock Text="{Binding Text}" HorizontalAlignment="Center" />
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
and the code behind contains something like:
List<Foo> ListOfFoo = new List<Foo>();
ListOfFoo.Add(new Foo(){Text="Something"});
ListOfFoo.Add(new Foo(){Text="Something Else"});
ListOfFoo.Add(new Foo(){Text="Something Completely Different"});
TheListBox.ItemsSource = ListOfFoo;
If it's more complex or you can't make it work, post some code and we'll go from there.