I have a textbox in my visual tree as follows..
Window
Grid
ListBox
ItemTemplate
DataTemplate
Grid
Grid
Textbox...
The textbox is defined as..
<TextBox Height="Auto"
Text="{Binding Path=LyricsForDisplay}"
MinHeight="50"
MaxHeight="400"
Visibility="Visible"
VerticalScrollBarVisibility="Auto"
IsReadOnly="True"
AllowDrop="False"
TextWrapping="WrapWithOverflow">
</TextBox>
When long text is added to the bound variable (LyricsForDisplay) all of the items in the listbox expand their textboxes/grids width's to allow for the entire string to be seen if you use the scrollbar on bottom that appears...
What I would like to do is make it so the boxes/grids only resize if the user stretches the window .. NOT when a long text is entered (it could just wrap around..)
Does anyone know how to obtain the functionality?
The following works:
<ListBox Name="ListBox1"
ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<Grid>
<TextBox TextWrapping="Wrap"></TextBox>
</Grid>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
Notice the use of ScrollViewer.HorizontalScrollBarVisibility="Disabled" and TextWrapping="Wrap".
Unfortunately, the regular TextBox doesn't allow autoresize to fit the parent but NOT autoresize when the text doesn't fit.
To solve this problem, you can use a custom TextBox that reports a desired (0, 0) size. It's an ugly hack, but it works.
In your .xaml.cs file:
public class TextBoxThatDoesntResizeWithText : TextBox
{
protected override Size MeasureOverride(Size constraint)
{
return new Size(0, 0);
}
}
Then, in your .xaml file:
<Window x:Class="YourNamespace.YourWindow"
...
xmlns:local="clr-namespace:YourNamespace">
...
<local:TextBoxThatDoesntResizeWithText Height="Auto"
Text="{Binding Path=LyricsForDisplay}"
MinHeight="50"
MaxHeight="400"
Visibility="Visible"
VerticalScrollBarVisibility="Auto"
IsReadOnly="True"
AllowDrop="False"
TextWrapping="WrapWithOverflow">
</local:TextBoxThatDoesntResizeWithText>
...
</Window>
Something needs to contrain the horizontal width available to the TextBoxes, in this case you want to stop the ListBox from growing horizontally indefinitely:
<ListBox HorizontalScrollBarVisibility="Disabled"
two change the code:
1- add border tag with your grid.column and grid.row size that you are neads.
2- width and height of textbox set to it.
sample:
<Border x:Name="b" Margin="5"/>
<TextBox Height="Auto"
Text="{Binding Path=LyricsForDisplay}"
MinHeight="50"
Width="{Binding ActualWidth, ElementName=b}"
Height="{Binding ActualHeight, ElementName=b}"
Visibility="Visible"
VerticalScrollBarVisibility="Auto"
IsReadOnly="True"
AllowDrop="False"
TextWrapping="Wrap">
</TextBox>
Try setting the the MaxWidth Property in Your Textbox
<TextBox Height="Auto" Text="{Binding Path=LyricsForDisplay}" MinHeight="50" MaxHeight="400" Visibility="Visible" VerticalScrollBarVisibility="Auto" MaxWidth="100" IsReadOnly="True" AllowDrop="False" TextWrapping="WrapWithOverflow"> </TextBox>
Related
I can't get the slider for a scrollviewer to display. I have a listbox in a wrappanel. The listbox has a list of numbers. The list can be long enough to extend off of the bottom of the screen, so a scrollviewer is needed, but no matter how I set scrollviewer properties, or even if I put the listbox inside a scrollviewer inside the wrappanel, the slider doesn't appear. What am I doing wrong? Here's the XAML:
<WrapPanel Grid.Row="5" Grid.ColumnSpan="2">
<ListBox x:Name="lstBxCollisions"
HorizontalAlignment="Left" VerticalAlignment="Top"
Height="auto" Width="auto"
ItemsSource="{Binding MainWindow.lstBxCollisions}"
ScrollViewer.VerticalScrollBarVisibility="Auto"/>
<FlowDocumentReader Grid.Row="5" Grid.Column="1" Document="{Binding SingleAccidentFlowDocument}">
</FlowDocumentReader>
</WrapPanel>
Since your ListBox is inside WrapPanel, all its sizes are selected automatically and it begins to expand as the content size increases.
If you want it to appear ScrollBar, you need to fix the size of the ListBox by setting the actual height and width.
For example:
<WrapPanel Grid.Row="5" Grid.ColumnSpan="2">
<ListBox x:Name="lstBxCollisions"
HorizontalAlignment="Left" VerticalAlignment="Top"
Height="100" Width="100"
ItemsSource="{Binding MainWindow.lstBxCollisions}"
ScrollViewer.VerticalScrollBarVisibility="Auto"/>
<FlowDocumentReader Grid.Row="5" Grid.Column="1" Document="{Binding SingleAccidentFlowDocument}">
</FlowDocumentReader>
</WrapPanel>
My WPF application contains a window that has a single ListBox in it. The View Model for the window contains an ObservableCollection of DomainViewModel objects.
The window defines the following DataTemplate:
<DataTemplate x:Key="DomainTemplate" DataType="DomainViewModel">
<Border BorderBrush="{Binding Converter={StaticResource BrushConverter}, Path=IsSelected}"
BorderThickness="2"
Name="SelectedBorder">
<Button Click="SelectDomain_Click"
Content="{Binding Path=Name}"
FontSize="16"
FontWeight="Bold"
Height="60"
HorizontalAlignment="Stretch" />
</Border>
</DataTemplate>
And here's the ListBox's declaration:
<ListBox FontSize="16"
FontWeight="Bold"
Grid.Row="2"
ItemsSource="{Binding Path=Domains}"
ItemTemplate="{StaticResource DomainTemplate}"
Name="DomainListBox" />
When the window renders, each button is exactly wide enough to display the text in its Content property. But that's not what I want. I want each button to be the width of the ListBox, which is going to vary with the width of the window itself.
How do I get the Buttons to keep their width set to the ListBox's width?
<ListBox HorizontalContentAlignment="Stretch"
.../>
I have a ListBox that contains TextBlocks.
Sometimes the content of a TextBlock is too long and I want the height of this entry to double or triple as needed to accommodate the text.
I tried TextWrapping="Wrap" but it doesn't work. Every TextBlock is still just one line in height.
Is there an easy way to fix the problem in XAML? Thanks.
* Additional info: I tried to simplify the question but perhaps the complete scenario is better.
I have a listbox whose entries are displayed according to a template in code below.
Each entry has 2 pieces of info: a product price followed by product name.
I don't want to use the horizontal scrollbar in the listbox and want the product name to be displayed in 2 or more lines if necessary. The product name is the 2nd TextBlock.
Here's my XAML:
<ListBox Name="listBox1" ItemsSource="{Binding}" Margin="10" ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock MinWidth="40" TextAlignment="Right" Text = "{Binding ProductPrice}" />
<TextBlock Text = "{Binding ProductName}" TextWrapping="Wrap" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
Disable the listbox horizontal scrollViewer. This way the textBlock will be forced to wrap.
XAML:
<ListBox ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<TextBlock TextWrapping="Wrap"/>
</ListBox>
Example result:
Edit:
From the XAML you added I'm confident that the problem lays in the StackPanel.
Try replacing it with Grid for example:
<ListBox Name="listBox1" ItemsSource="{Binding}" Margin="10" ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock MinWidth="40" TextAlignment="Right" Text = "{Binding ProductPrice}" />
<TextBlock Grid.Column="1" Text = "{Binding ProductName}" TextWrapping="Wrap" />
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
StackPanel doesn't limit the content size, therefore the textBlock doesn't knows where the space ends , and the wrapping doesn't happens.
You are using StackPanel. Try using DockPanel:
<DockPanel>
<TextBlock DockPanel.Dock="Left" MinWidth ="40" TextAlignment="Right" Text = "11.12" />
<TextBlock Text = "{Binding LongText}" DockPanel.Dock="Right" TextWrapping="Wrap" />
</DockPanel>
For Example:
this will help you do that. Dont Size the TextBlock just size the scroll viewer because texblock needs to be variable so ScrollViewer will apply Scrollbar once it goes beyond the size of ScrollViewer .
<ScrollViewer HorizontalScrollBarVisibility="Auto"
VerticalScrollBarVisibility="Auto">
<TextBlock/>
</ScrollViewer>
For ListBoxItem
<ListBox ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListBox.Items>
<TextBlock Text="{Binding LongText}" TextWrapping="Wrap"/>
</ListBox.Items>
</ListBox>
I am using Silverlight 4 with Blend 4.
I have a (horizontal) stackpanel that includes some TextBoxes and a Button. The stackpanel is set to stretch to the size that the content uses. The TextBoxes are on autosize too.
When I add text to the Textboxes, the textbox size grows and the stackpanel grows too. So far so good.
When I remove text from the textboxes, the textbox size shrinks (as excepted), but the stackpanel size doesn't.
Is there any trick to make the stackpanel change size, when the content (textboxes) getting smaller?
Thanks in advance,
Frank
Here is the XAML for the UserControl:
<Grid x:Name="LayoutRoot">
<StackPanel x:Name="StackPanelBorder" Orientation="Horizontal">
<TextBox x:Name="TextBoxCharacteristicName" TextWrapping="Wrap" Text="Tex">
</TextBox>
<TextBox x:Name="TextBoxSep" TextWrapping="Wrap" Text="=" IsReadOnly="True">
</TextBox>
<Button x:Name="ButtonRemove" Content="-" Click="ButtonAddOrRemove_Click">
</Button>
</StackPanel>
</Grid>
If you want your StackPanel to resize horizontally with the items inside of it, you will need to change the HorizontalAlignment from the default value of "Stretch" to something else.
By default, the stackpanel stretches to fill the entire space of its parent control because the HorizontalAlignment is set to stretch. This makes it difficult for it to grow and shrink in size.
You will want to set the HorizontalAlignment to "Left", "Right" or to "Center". Then the stackpanel will only be as wide as the items inside of it. But choose wisely, because the stackpanel will then dock to that position inside of its parent control.
<StackPanel Orientation="Horizontal" HorizontalAlignment="Left">
Note: If this isn't fixing your problem, then you have a problem with the Parent Control and not your StackPanel.
MSDN website for HorizontalAlignment
You would be better off using a Grid for this. Just create a Grid with 3 auto columns and it will size to fit the content.
<Grid x:Name="LayoutRoot">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<TextBox x:Name="TextBoxCharacteristicName" TextWrapping="Wrap" Text="Tex" Grid.Column="0"/>
<TextBox x:Name="TextBoxSep" TextWrapping="Wrap" Text="=" IsReadOnly="True" Grid.Column="1"/>
<Button x:Name="ButtonRemove" Content="-" Click="ButtonAddOrRemove_Click" Grid.Column="2"/>
</Grid>
In most cases, you are much better off using a Grid. The StackPanel is a useful control, but I often feel it is overused.
I've modified your code as below. Please check.
<Grid x:Name="LayoutRoot">
<ScrollViewer x:Name="PageScrollViewer" >
<toolkit:WrapPanel x:Name="mywrapPanel" Orientation="Vertical" Width="{Binding ActualWidth, ElementName=LayoutRoot}">
<TextBox x:Name="TextBoxCharacteristicName" TextWrapping="Wrap" Text="Tex" Width="{Binding ActualWidth, ElementName=mywrapPanel}">
</TextBox>
<TextBox x:Name="TextBoxSep" TextWrapping="Wrap" Text="=" IsReadOnly="True" Width="{Binding ActualWidth, ElementName=mywrapPanel}">
</TextBox>
<Button x:Name="ButtonRemove" Content="-" Click="ButtonAddOrRemove_Click" HorizontalAlignment="Right" Width="80" Margin="2">
</Button>
</toolkit:WrapPanel>
</ScrollViewer>
</Grid>
If you use Horizontal in Orientation of WrapPanel, you may have to use the Height property binding with ActualHeight. "toolkit" can be included in header as xmlns:toolkit="http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit"
Hope this helps.
you need something like:
<StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
Also, I don't think that have a textbox which stretches is a good idea, unless it is a requirement. You should specify the width on the textbox so it doesn't stretch.
Also, if the above solution doesn't work then you should post your xaml for letting us see the document outline.
Im trying to define a dataTemplate for a business object in my wpf application a collection of which is being bound to a ListBox.
<UserControl.Resources>
<DataTemplate x:Key="ResizedItemsDataTemplate" DataType="{x:Type resizer:ResizeMonitorItem}">
<Border x:Name="bdr" BorderBrush="Blue"
BorderThickness="1"
CornerRadius="2"
Width="auto"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch">
<Grid Margin="2">
<Grid.RowDefinitions>
<RowDefinition Height="14"></RowDefinition>
<RowDefinition Height="14"></RowDefinition>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Text="{Binding SaveAsFileName}"></TextBlock>
<TextBlock Grid.Row="1" Text="{Binding ResizedImageFilePath}"></TextBlock>
</Grid>
</Border>
</DataTemplate>
</UserControl.Resources>
<Grid VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Margin="0">
<Border BorderThickness="0,0,0,5" BorderBrush="DarkGray" >
<ListBox x:Name="ListBoxResizeItems" ItemsSource="{Binding Path=ResizeItems}" BorderThickness="0" ItemTemplate="{DynamicResource ResizedItemsDataTemplate}">
</ListBox>
</Border>
</Grid>
How can I get the border defined with x:Name=bdr to span the full width of each listbox item? At the moment it only spans the with of the textblocks inside it which dont neccessary fill the full width of the listboxitem and also vary for each listboxitem.
This is probably more to do with the ListBoxItems themselves not taking up the full width of the ListBox. Add the HorizontalContentAlignment="Stretch" attribute to your ListBox and see if it stretches the individual items to fill the width.
Worked it out. The trick is to set the HorizontalContentAlignment="Stretch" on your listbox to make its contents stretch the full width rather than fit the contents only.
<ListBox x:Name="ListBoxResizeItems"
HorizontalContentAlignment="Stretch"
ItemsSource="{Binding Path=ResizeItems}"
BorderThickness="0"
ItemTemplate="{DynamicResource ResizedItemsDataTemplate}" >
</ListBox>
Sorry Matt, just got your answer thorugh as I was typing this post.
HorizontalContentAlignment is a nice, clean solution compared to what I was trying. Thanks!
Here's what ALMOST worked, but sometimes made a dialog box animated itself wider and wider forever:
Width="{Binding ActualWidth,
RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListBox}}}"