I have a wpf browser and I have a Textbox attached to a Toolbar. However, I find it impossible to make it strechable. The effect I'm looking for is the kind you see in Chrome. Try to resize your browser window and observe the search field and you will get what I mean.
The Toolbar is already extremely limited to all edits but I can't ignore the fact that it should be a soulution to this problem.
The only thing I accomplished so far is to make the Textbox scale based on the number of characters in it but that's not obviously what I want.
Additionally: My Toolbar stretches just fine.
My XAML code as follows:
<ToolBar HorizontalAlignment="Stretch" VerticalAlignment="Top" Height="49" Width="auto">
<TextBox x:Name="Urlbox" Height="44" Margin="0" TextWrapping="Wrap" Text="Input URL" GotFocus="TextBox_GotFocus" KeyDown="OnKeyDownHandler" VerticalAlignment="Top" Width="260" HorizontalContentAlignment="stretch"/>
</ToolBar>
Remove Width="260" property from your TextBox. And add HorizontalAligment="Stretch".
Put your TextBlock into StackPanel or Grid which will do the trick.
<ToolBar HorizontalAlignment="Stretch" VerticalAlignment="Top" Height="49" Width="auto">
<Grid Width="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ToolBar}}, Path=ActualWidth}">
<TextBox HorizontalAlignment="Stretch" VerticalAlignment="Top" ... >
</Grid>
</ToolBar>
Your code as it stands has a number of things that mean the TextBox won't resize.
You've got a fixed width
You've set HorizontalContentAlignment="Stretch" but not HorizontalAlignment="Stretch" on the TextBox
You've set HorizontalAlignment="Stretch" but not HorizontalContentAlignment="Stretch" on the ToolBar
<ToolBar HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch" VerticalAlignment="Top" Height="49" Width="auto">
<TextBox x:Name="Urlbox" Height="44" Margin="0" TextWrapping="Wrap" Text="Input URL" GotFocus="TextBox_GotFocus" KeyDown="OnKeyDownHandler" VerticalAlignment="Top" HorizontalContentAlignment="stretch" HorizontalAlignment="stretch"/>
</ToolBar>
Failing that, as others have said, you can try placing a Grid (not a StackPanel) inside the ToolBar and the TextBox within that Grid. A Grid will automatically take up as much space as it is given by its parent (equivalent of Width="*"), whereas a StackPanel will only take up as much space as its content requires (equivalent of Width="Auto").
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>
I have a parent container that is used to hold all of my user controls. The issue is that I use VerticalAlignment="Stretch" to stretch contents to the full height and get a vertical scroll bar the user control gets stretched too much. The vertical scrollbar appears but there is no way to scroll. I know this because the down arrow for the scroll bar isn't visible.
I have <ContentControl Content="{Binding Workspace}" /> which is where a variety of controls can be assigned. For example, here is the XAML that is not working property in regards to stretching.
<StackPanel>
<TextBlock Text="{Binding FoundCount}" FontSize="13" Foreground="#666" Margin="0 0 0 8" />
<ScrollViewer VerticalAlignment="Stretch">
<TreeView
ItemsSource="{Binding Listing}"
Grid.Row="1"
BorderThickness="0"
VirtualizingStackPanel.IsVirtualizing="True" />
</ScrollViewer>
</StackPanel>
I only want to the TreeView to stretch and display a vertical scrollbar.
Any ideas?
I suspect the height of the StackPanel is not contrained so it grows to accomodate the ScrollViewer. You can check this by putting a border on the StackPanel.
<Border>
<StackPanel>
<TextBlock Text="{Binding FoundCount}" FontSize="13" Foreground="#666" />
<ScrollViewer VerticalAlignment="Stretch">
<TreeView ItemsSource="{Binding Listing}" BorderThickness="0"
VirtualizingStackPanel.IsVirtualizing="True" />
</ScrollViewer>
</StackPanel>
</Border>
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>
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.
I'm pretty new to WPF. I often find my self struggling with getting a bunch of child controls combined width to match a given parent container.. As in the following:
<ListBox x:Name="BrugereListBox" Grid.Column="0" Grid.Row="3" DataContext="{DynamicResource Brugere}"
ItemsSource="{Binding}"
PreviewMouseLeftButtonDown="BrugereListBox_MouseLeftButtonDown"
PreviewMouseMove="BrugereListBox_PreviewMouseMove"
>
<ListBox.ItemTemplate >
<DataTemplate >
<Border BorderBrush="Black" BorderThickness="1" Margin="2">
<StackPanel Orientation="Vertical" IsEnabled="True"
PreviewMouseLeftButtonDown="StackPanel_PreviewMouseLeftButtonDown">
<StackPanel Orientation="Horizontal" >
<Label>Navn</Label>
<TextBox Text="{Binding Name}"></TextBox>
</StackPanel>
<StackPanel Orientation="Horizontal">
<Label>Password</Label>
<TextBox Text="{Binding Password}"></TextBox>
</StackPanel>
<StackPanel Orientation="Horizontal">
<Label>Email</Label>
<TextBox Text="{Binding Email}"></TextBox>
</StackPanel>
</StackPanel>
</Border>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
In this case I'm interested in getting the width of the children of the stackpanel:
<StackPanel Orientation="Horizontal" >
<Label>Navn</Label>
<TextBox Text="{Binding Name}"></TextBox>
</StackPanel>
to match the width of
<ListBox x:Name="BrugereListBox"
Any generic solution to scenarios like this?
turns out to be a dupe of:
wpf border control to span the width of listboxItem
and the answer given there:
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.
so change to:
<ListBox x:Name="BrugereListBox" Grid.Column="0" Grid.Row="3" DataContext="{DynamicResource Brugere}"
ItemsSource="{Binding}"
PreviewMouseLeftButtonDown="BrugereListBox_MouseLeftButtonDown"
PreviewMouseMove="BrugereListBox_PreviewMouseMove"
HorizontalContentAlignment="Stretch"
>
but as Kent says, using a Grid would be better in my opinion.
Use the right panel and you'll be fine. StackPanel makes its own decisions about its width/height depending on its orientation and its children. Use a Grid and it will just take up the space it is given - no more, no less.