Develop Reference

Why can I not use .AutoSize in a label

In my program, I have a TextBlock where my result text is shown. In a textbox I can just use TextWrapping="Wrap" and I can scroll down if it's still too much for the textbox. Now in my TextBlock that I talked about I wanted to have the same thing and used TextWrapping="Wrap" again. That works except for the scrolling thing. What can I do now to let it scroll like in the textbox?

Use following structure
<ScrollViewer HorizontalScrollBarVisibility="Auto" x:Name="scrView" VerticalScrollBarVisibility="Auto" Width="100" Height="100">
<TextBlock Width="{Binding Path=ActualWidth, ElementName=scrView}" TextWrapping="Wrap">your text</TextBlock>
</ScrollViewer>

UWP: Wrapping text at textbox doesn't work

I trying to wrap text at textBox but there are no success..
<Grid Margin="0,0,0,0" BorderThickness="1" BorderBrush="Gray">
<ScrollViewer VerticalScrollBarVisibility="Visible" HorizontalScrollBarVisibility="Auto" >
<TextBox x:Name="Details" IsReadOnly="True" HorizontalAlignment="Left" TextWrapping="Wrap" VerticalAlignment="Stretch" BorderThickness="0" Height="500" />
</ScrollViewer>
</Grid>
If I have long line without \n I have long string with horizontal scrollbar. But how I understand TextWrapping="Wrap" should cut this string.
I saw this answer but this is not suitable for me because I can have different width of this textBox.
Also I tried to use AcceptsReturn="True" with no success.
I glad to hear any ideas on how to make it works.

I'm not sure if this is what you are looking for, but i'm wondering why you don'disable horizontal Scrolling.
<ScrollViewer Grid.Column="2" VerticalScrollBarVisibility="Visible" HorizontalScrollBarVisibility="Disabled">
<TextBlock Text="TextusLongusTextusLongusTextusLongusTextusLongusTextusLongusTextusLongusTextusLongus" TextWrapping="Wrap" VerticalAlignment="Stretch"/>
</ScrollViewer>

You don't define any sort of width restriction. Which means that your TextBox can theoratically expand infinitely in width.
Try to either set its width in your XAML code or its maxwidth.
You can also forget about the ScrollViewer. It's already a part of the TextBox and you could just add the elements that you set in your ScrollViewer as an element of the TextBox.
Justt add it like ScrollViewer.VerticalScrollBarVisibility="Visible"

XAML WP8 and making a 'TextBlock' scroll down

Alright, so I have a XAML page with a TextBlock in a Windows Phone 8 application. My dilemma is this:
I pragmatically add more content (formatted lines with Inlines.Add(new Run...) to the TextBlock. The text block is currently filled from bottom to up because of the ScrollViewer in the sense that a line appears in the bottom after another. I would also be fine with them starting to appear from the top as long as the TextBlock would continue to scroll down (actually this might look better) once it is full. My TextBlock is inside a ScrollViewer as below:
<Popup x:Name="send_message_xaml" Grid.Row="1" VerticalOffset="0" Width="750" Height="auto">
<StackPanel Orientation="Vertical" Margin="0,0" Width="auto" Height="auto">
<ScrollViewer Height="345" HorizontalAlignment="Left" Margin="0,0,0,0" Name="scrollViewer1" VerticalAlignment="Bottom" Width="420" VerticalScrollBarVisibility="Auto">
<TextBlock x:Name="message_log" Margin="40,50,0,0" TextWrapping="Wrap" Width="420" VerticalAlignment="Top" FontSize="22"/>
</ScrollViewer>
<TextBox x:Name="message_to_send" InputScope="Chat" Width="480" KeyDown="message_to_send_KeyDown" Margin="15,0"/>
</StackPanel>
</Popup>
How can I get the textblock to scroll so that the newest appended message is always at the bottom? I found a bunch of these threads but none seem to solve my problem so far. Do I need to add some code somewhere with the appending?

You need to update the VerticalOffset based on the ScrollableHeight. When you add new inlines to the TextBlock, its height is going to change and that will notify the parent ScrollViewer. So, after you add new items to the inlines, run the Measure method and update the VerticalOffset.
Here is an example.

How do I make the WPF TextBox border inside the ScrollViewer not disappear

in a WPF window I have a TextBox inside a ScrollViewer:
<ScrollViewer ScrollViewer.HorizontalScrollBarVisibility="Auto" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.CanContentScroll="True" MaxHeight="160" Grid.Column="1" Grid.Row="0">
<TextBox MinHeight="80" Name="generalLog"/>
</ScrollViewer>
With an empty text it looks like this.
When the text gets to long or contains too many lines, the scrollbars appear, as they should. But as the TextBox is wrapped inside the ScrollViewer, the TextBox gets bigger and its border (default style) gets hidden on the sides:
Link to Screenshot because I can't embed pictures
As you can see, the border is not visible on the left side.
Is there any way to make the ScrollViewer appear inside the TextBox? Or make the ScrollViewer have a border like the TextBox and hide the TextBox one, which would probably look the way I want.
Thanks so much.

Wrap the Scrollviewer with a border and set Textbox borderbrush="transparent" ?
<Border>
<ScrollViewer ScrollViewer.HorizontalScrollBarVisibility="Auto" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.CanContentScroll="True" MaxHeight="160" Grid.Column="1" Grid.Row="0">
<TextBox BorderBrush="transparent" MinHeight="80" Name="generalLog"/>
</ScrollViewer>
</Border>

Scrollable textblock in windows phone 7

I am trying to create a scrollable text block.
But it dont seem to works.
How should i go about doing it?
Below is my code:
<Grid x:Name="ContentGrid" Grid.Row="1">
<ScrollViewer>
<TextBlock Height="517" HorizontalAlignment="Left" Margin="33,16,0,0" Name="textBlockRules" Text="" VerticalAlignment="Top" Width="414" FontSize="25" TextWrapping="Wrap" /></ScrollViewer>

Even though you didn't mention explicitly, I'm guessing that your aim is to show some large text without getting chopped.
For such a requirement there are helpful threads on stackoverflow:
1. Need to show large amount of text on windows phone 7 screen
2. Programmatically determining max fit in textbox (WP7)
On the other hand, if all you want is have text blocks in a sequence, you can use a ListBox that is databound to a list.

You have to set the maximum height of the ScrollViewer and could set the Visibility for the Scrollbars to Auto.
Here is the example from the msdn:
<ScrollViewer Height="200" Width="200" HorizontalScrollBarVisibility="Auto" Canvas.Top="60" Canvas.Left="340">
<TextBlock Width="300" TextWrapping="Wrap"
Text="I am the very model of a modern Major-General, I've information vegetable, animal, and mineral, I know the kings of England, and I quote the fights historical, From Marathon to Waterloo, in order categorical; I'm very well acquainted, too, with matters mathematical, I understand equations, both the simple and quadratical, About binomial theorem I'm teeming with a lot o' news, With many cheerful facts about the square of the hypotenuse." />
</ScrollViewer>

Set scrollviewerHorizontalBar to visibal, make textbok stretch and make sure your text is long enough, something like this:
<ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto" Name="Scroller">
<TextBlock HorizontalAlignment="Stretch" VerticalAlignment="Stretch" MinWidth="100" Width="{Binding ElementName=Scroller, Path=ViewportWidth}"
TextWrapping="Wrap" Text="Some really long text that should probably wordwrap when you resize the window." />
</ScrollViewer>