I have canvas with user control (border with textbox). when I put sth I want to resize textbox with border from left to right side. I have event textBox_TextChanged, and there I set new border width from textbox width.
please look at image
Do you want the border+textbox to expand to the left as you type? Try to set the Canvas.Right to position your Border:
<Canvas Width="300" Height="200">
<Border Canvas.Top="10"
Canvas.Right="50"
BorderBrush="Orange"
BorderThickness="2">
<TextBox Text="{Binding Title}" />
</Border>
</Canvas>
Obviously, Title above is the viewmodel's property.
Related
I want to show some text information at the top/left of HelixViewport3D like "ShowCameraInfo" does, which display camera information at the bottom/left of the Viewport. BillboardTextVisual3D requires a 3D point, but what I want is just like TextBlock on Canvas, which just need a 2D coordinate.
I can use TextBlock, but it cannot be captured as part of HelixViewport3D.
Any idea?
Literally a Textblock placed over the HelixViewport3D should be what you need.
There is only one problem: Viewport will not recognize if you try to manipulate the camera by initiating the mouse click on the Stackpanel.
<Grid>
<hx:HelixViewport3D>
<hx:DefaultLights/>
<hx:CubeVisual3D SideLength="7"/>
<hx:CubeVisual3D SideLength="5" Fill="Red" Center="-5,3,0"/>
</hx:HelixViewport3D>
<StackPanel Margin="5" HorizontalAlignment="Left" VerticalAlignment="Top">
<StackPanel.Background>
<SolidColorBrush Color="#FFB6B6B6" Opacity="0.4"/>
</StackPanel.Background>
<TextBlock Text="asdhfasdvfmnas" Margin="5,2"/>
<TextBlock Text="mvcbnxcvjhbkdaf" Margin="5,2"/>
<TextBlock Text="vbkjsdvj" Margin="5,2"/>
</StackPanel>
</Grid>
I'm trying to place a Border around a StackPanel like so:
<Border CornerRadius="5" BorderBrush="#009999" Background="Transparent"
BorderThickness="2" Grid.Column="2" Grid.Row="0">
<StackPanel HorizontalAlignment="Center" Margin="0,30,0,0">
<!--Contents-->
</StackPanel>
</Border>
For some reason, the border is appearing around the column that the StackPanel is in, not the StackPanel itself. I can change the margin of the border, but that doesn't hold up if the screen is resized. I also tried getting rid of the StackPanel margin but that made no difference. The StackPanel is the only object in this column.
Border has default HorizontalAlignment equal to Stretch, so it takes full possible width.
Then StackPanel is centered inside the border because it has HorizontalAlignment="Center".
set HorizontalAlignment="Center" on Border. It will get width, equal to StackPanel width (plus Margin), and then will be centered
I think it is because you're setting the HorizontalAlignment to Center. Doing this will make the StackPanel size to whatever its content is.
If you move the Border to stackpanel your problems will be fixed :)
here it is:
<Grid>
<StackPanel Width="350" Height="200">
<Border BorderThickness="2" BorderBrush="Black" Width="350" Height="200">
<TextBlock>SomeText</TextBlock>
</Border>
</StackPanel>
</Grid>
I am kinda new to WPF, dont know if the question is weird. I wanted to know if its possible to add a border around the text inside a textBlock.
EDIT:
As per suggestion I have tried both but without much success:
<Border BorderBrush="#FF0B232F" BorderThickness="2">
<TextBlock HorizontalAlignment="Left" Text="TextBlock" TextWrapping="Wrap" FontSize="36" FontWeight="Bold" Foreground="#FF88BCCD" OpacityMask="Black"/>
</Border>
and
<Label BorderBrush="#FF0B232F" BorderThickness="2,2,2,2" Content="TextBlock" FontSize="36" FontWeight="Bold" Foreground="#FF88BCCD" />
Am I doing something wrong here?
In such cases I use Label or TextBlock placed in Border.
Both your approaches are correct, however, if you have the textblock/label inside a grid (or any other container) declared as you have, its contents will stretch.
Try setting the VerticalAlignment and/or HorizontalAlignment to an appropriate setting (Top/Left, Center)..
something like this:
<Border BorderBrush="#FF0B232F" BorderThickness="2" VerticalAlignment="Top">
<TextBlock HorizontalAlignment="Left" Text="TextBlock" TextWrapping="Wrap" FontSize="36" FontWeight="Bold" Foreground="#FF88BCCD" OpacityMask="Black"/>
</Border>
Assuming that you are asking for a full size TextBlock with a border overlay within the bounds of the TextBlock you could wrap it in a Grid and draw the borders over the top of the TextBlock like this...
<Grid HorizontalAlignment="Left">
<TextBlock Text="TextBlock" TextWrapping="Wrap" FontSize="36" FontWeight="Bold" Foreground="#FF88BCCD" OpacityMask="Black" />
<Border BorderBrush="#FF0B232F" BorderThickness="2" />
</Grid>
Because we haven't specified the grid row and column on the TextBlock and Border objects the border overlays on top of the TextBlock.
if you just want to have a border around your textblock or any other control use :
<Border>
<TextBlock></TextBlock>
</Border>
you set border properties like color ,cornerradius ,thickness,...
A window has a Grid with two columns. The left column contains a control with a constant width but with a height that adapts. The right column contains a TextBox that takes up all remaining space in the Grid (and thereby in the Window).
The Grid is given a minimal width and height and is wrapped within a ScrollViewer. If the user resizes the window to be smaller than the minimal width/height of the Grid, scrollbars are displayed.
This is exactly how I want it to be. However, a problem occurs when the user starts typing text. If the text is to long to fit in one line in the TextBox, I want the text to wrap. Therefore I set TextWrapping="Wrap" on the TextBox. But since the TextBox has an automatic width and is wrapped in a ScrollViewer (its actually the whole Grid that is wrapped), the TextBox just keeps expanding to the right.
I do want the TextBox to expand if the window is expanded, but I don't want the TextBox to expand by the text. Rather the text should wrap inside the available TextBox. If the text don't fit within the TextBox height, a scrollbar should be displayed within the TextBox.
Is there a way to accomplish this?
Below is some code that shows my problem:
<Window x:Class="AdaptingTextBoxes.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="300" Width="400" Background="DarkCyan">
<Grid Margin="10" Name="LayoutRoot">
<ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
<Grid MinWidth="300" MinHeight="200">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Button Grid.Column="0" Margin="0,0,10,0" Content="Button" Width="100" />
<TextBox Grid.Column="1" AcceptsReturn="True" TextWrapping="Wrap" ScrollViewer.HorizontalScrollBarVisibility="Disabled" ScrollViewer.VerticalScrollBarVisibility="Auto" />
</Grid>
</ScrollViewer>
</Grid>
</Window>
You could use an invisible border (its hacky but it works - its how I tend to sort out dynamic textbox sizes in Xaml):
<Border BorderThickness="0" x:Name="border" Grid.Column="1" Margin="0.5" />
<TextBox Grid.Column="1" AcceptsReturn="True" TextWrapping="Wrap" Width="{Binding ActualWidth, ElementName=border}" Height="{Binding ActualHeight, ElementName=border}" />
Have you tried setting the MaxWidth property on just the TextBox?
Edit after OP's comment
I would try getting rid of the ScrollViewer. The sizing used in the Grid's layout should take care of re-sizing and the scroll bar settings on the TextBox should take care of the rest.
The answer is based on Leom's answer.
The solution works great when you enlarge the window, but the resizing is not smooth when you make the window smaller. As the textbox participates in the grid's layout, it has to perform layout process multiple times. You can fix that by putting the texbox in the canvas, so the change of the size of the textbox no longer triggers the grid's re-layout.
The updated code:
<Border BorderThickness="0" x:Name="border" Grid.Column="1" Margin="0.5" />
<Canvas Grid.Column="1">
<TextBox AcceptsReturn="True" TextWrapping="Wrap" Width="{Binding ActualWidth, ElementName=border}" Height="{Binding ActualHeight, ElementName=border}" />
</Canvas>
Canvas doesn't seem to play well together nicely with the other elements when you try to build it into a layout and have e.g. controls on the side and the canvas is the drawing area.
For instance, why can I put a border around every element except a canvas? In the following code, border wraps canvas but the canvas only has the border on the top but not on the left, right or bottom:
<Window x:Class="WpfApplication25.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1" Height="300" Width="300">
<StackPanel>
<TextBlock DockPanel.Dock="Bottom" Text="Move the slider to reveal the answer:"/>
<Slider DockPanel.Dock="Bottom" Name="theSlider"
HorizontalAlignment="Left"
Width="200"
Minimum="0"
Maximum="1"
Value="1"
Cursor="Hand"/>
<Border BorderBrush="Tan" BorderThickness="2">
<Canvas>
<TextBlock Canvas.Left="45" Canvas.Top="50" Text="test" FontSize="16"/>
<Rectangle
Canvas.Left="10"
Canvas.Top="10"
Width="100"
Height="100"
Fill="Silver"
Opacity="{Binding ElementName=theSlider, Path=Value}"
/>
</Canvas>
</Border>
</StackPanel>
</Window>
From what I can tell in XamlPad, the problem appears to be that your Canvas does not have an explicit height/width, and that its HorizontalAlignment defaults to being in the middle of the Border. Without an explicit height and width the Border appears to collapse to 0 height and stretches on the width. My assumption is this is because your Border is in a StackPanel, as placing the Border in a Grid, causes it to behave as expected.
Your best bet is to give the Canvas an explicit Height and Width. Not sure that is what you're looking for though.
As far as I understand what you are trying to achieve, you should place your controls in one cell of a Grid and your Canvas in another.