I'm trying to add a static image inside a RichTextBox based on the selection of a ListBox item. I'm able to achieve the functionality of loading the image but the image doesn't occupy the entire size of the RichTextBox. I looked at MSDN documentation for any property I could set but couldn't find any that suits my need.
I've posted a sample code snippet to add an image to a RichTextBox.
<Window x:Class="ImageDepth.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<RichTextBox HorizontalAlignment="Center" Height="100" VerticalAlignment="Center" Width="100" BorderBrush="Gray">
<FlowDocument>
<BlockUIContainer>
<Image Source="C:\Temp\Penguins.jpg"/>
</BlockUIContainer>
</FlowDocument>
</RichTextBox>
</Grid>
Am I missing something here or is there a simpler way to achieve this?
Edit: I tried setting the Height and Width of the Image to that of the RichTextBox but it covers about 80% of the RichTextBox. Also, I had to remove the Stretch property of the Image since it distorts the image slightly even though setting the property makes the image cover about 90% of the area.
You have to bind Height and Width of Image to ActualHeight and ActualWidth of RichTextBox.
<Image Source="C:\Temp\Penguins.jpg"
Width="{Binding ActualWidth, RelativeSource={RelativeSource
Mode=FindAncestor, AncestorType=RichTextBox}}"
Height="{Binding ActualHeight, RelativeSource={RelativeSource
Mode=FindAncestor, AncestorType=RichTextBox}}"/>
UPDATE
There seems internal padding of RichTextBox. You can set that to negative value to remove that padding.
<RichTexBox Padding="-5,-2,-5,-2"> // It reads Left, Top, Right, Bottom
....
</RichTexBox>
Change -5,-2,-5,-2 to desired value which seems fit for you.
Try this:
<Window x:Class="ImageDepth.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<RichTextBox HorizontalAlignment="Center" Height="100" VerticalAlignment="Center" Width="100" BorderBrush="Gray">
<FlowDocument>
<BlockUIContainer>
<Image Height="100" Width="100" Source="C:\Temp\Penguins.jpg" Stretch="Fill"/>
</BlockUIContainer>
</FlowDocument>
</RichTextBox>
</Grid>
This will tell your image to fill the entire RichTextBox.
Related
I try to display an image in my window :
<Window x:Class="Problem.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<DockPanel>
<StackPanel Orientation="Vertical">
<ScrollViewer VerticalScrollBarVisibility="Visible" HorizontalScrollBarVisibility="Visible">
<Image Source="cat.jpg" Stretch="Uniform">
<Image.LayoutTransform>
<RotateTransform Angle="90" />
</Image.LayoutTransform>
</Image>
</ScrollViewer>
</StackPanel>
</DockPanel>
</Window>
where cat.jpg is a 1920x1080 image.
Here is the result :
As you can see, the VerticalScrollbar is disabled although I can't see the full cat head. Moreover, HorisontalScrollBar is Invisible.
My question is : How to enable scrollbar in order to scroll over my image ?
Remove the StackPanel. It gives its content infinite space, so the ScrollViewer has the height of the image. If you need to stack something under the image, create a StackPanel inside the ScrollViewer:
<Window x:Class="Problem.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<DockPanel>
<ScrollViewer VerticalScrollBarVisibility="Visible" HorizontalScrollBarVisibility="Visible">
<StackPanel>
<Image Source="cat.jpg" Stretch="Uniform">
<Image.LayoutTransform>
<RotateTransform Angle="90" />
</Image.LayoutTransform>
</Image>
</StackPanel>
</ScrollViewer>
</DockPanel>
I was having the same problem, but with a custom made Image class which I only rendered drawings on by using the DrawingContext in the protected override void OnRender(DrawingContext dc) function. I did not understood then, that I either needed to set the size of the image (set the Width and Height properties) or create a new image from the drawingContext and make it the Source of the image, in order to resize the actual image.
I got my answer from here: Get images from DrawingGroup and the way I solved it was by changing the properties every time I used the Render function of my image:
DrawingImage drawingImage = new DrawingImage(mBackingStore);
Width = drawingImage.Width;
Height = drawingImage.Height;
There is one Grid and I drop an Image control into the Grid.
What I do : just simply change both the property-HorizontalAlignment and VerticalAlignment to 'Center'.
However the image control performs strangely unlike other controls do. This Image control center itself according to its upper left corner like below :
I want to know why it performs in this way?
EDIT
Here is my XAML:
<UserControl x:Class="Entity.WPF.Controls.ShopProfile"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="600" d:DesignWidth="780">
<Grid>
<DockPanel >
<Grid>
<Image HorizontalAlignment="Center" Height="100" Margin="0" VerticalAlignment="Center" Width="100"/>
</Grid>
</DockPanel>
</Grid>
And if I set margin like Margin="-50,-50,0,0",it is centered actually,but why other controls don't need this setting?
That's interesting, I'm not sure why that happens, or if it's documented somewhere.
To answer your question, how to center the image control inside a grid, just remove those properties and the image will be centered in the grid automatically.
<Grid>
<Image Height="100" Margin="0" Width="100" />
</Grid>
How do I make the TextBox stretch until the button with the three dots, but not cover it when somebody enters a lot of text?
My MainWindow.xaml:
<Window x:Class="Foo.Bar.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:p="clr-namespace:Foo.Bar.Properties"
Title="MainWindow" Height="350" Width="525">
<Grid>
<StackPanel>
<DockPanel>
<Label Name="lblFileName" Content="File"></Label>
<TextBox Name="txbFileName"></TextBox>
<Button Name="btnOpenFileDialog" Content="..." HorizontalAlignment="Right"></Button>
</DockPanel>
<UniformGrid>
<Button Name="btnFoo" Content="Foo"></Button>
<Button Name="btnBar" Content="Bar"></Button>
</UniformGrid>
</StackPanel>
</Grid>
</Window>
What it looks like:
To stretch your TextBox set LastChildFill="true" on DockPanel and add TextBox in the end.
Btw. If you're using DockPanel you can use DockPanel.Dock="Right" instead of HorizontalAlignment="Right".
<Grid>
<StackPanel>
<DockPanel LastChildFill="True">
<Label Name="lblFileName" Content="File"></Label>
<Button Name="btnOpenFileDialog" Content="..." DockPanel.Dock="Right"></Button>
<TextBox Name="txbFileName"></TextBox>
</DockPanel>
<UniformGrid>
<Button Name="btnFoo" Content="Foo"></Button>
<Button Name="btnBar" Content="Bar"></Button>
</UniformGrid>
</StackPanel>
</Grid>
You could set the MaxWidth of the TextBox to the width of the space you want to stay inside. This will take a bit of addition and subtraction, and maybe a bit of estimation, but it will work. Having it actually stretch seems a bit odd, but if you really want that in particular, then an example setting might be:
<TextBox Name="txbFileName" MaxWidth=300*></TextBox>
I'm newbie with Wpf application i have this interface
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Alg="clr-namespace:AS.Views.DeformableModel"
xmlns:Controls="clr-namespace:Assergs.Windows.Controls;assembly=Assergs.Windows" x:Class="AS.Window1"
Title="Window1"
>
<Grid Margin="0,0,2,0">
<Controls:RibbonPanel Header="Menu" HorizontalAlignment="Left" Margin="0,0,0,31.405" Width="213.388">
<TreeView Width="210.449" HorizontalAlignment="Left" Margin="0,0,0,-1.515"/>
</Controls:RibbonPanel>
<StatusBar Margin="0,472.595,0,0.972" VerticalAlignment="Bottom">
<Label Content="Pret" Height="41.433" Width="36.737"/>
</StatusBar>
<StackPanel Margin="213.388,0,0,31.405">
<Image Height="473.5" Source="image-interface2.jpg"/>
</StackPanel>
</Grid>
</Window>
i got as a result:
as you saw, there is many design error i need to know :
How can i display the image at the full stackpanel space ?
why the RibbonPanel controller disappeared?
How can i change my snippet to make all controller's size depending to the size of the window (image,treeview...)
I think you should to know about wpf's panels and layouts. The grid is an excellent panel and you can get almost any common layout. But for getting this you should works with columns and rows (not only with margins and vertical/horizontal orientations). The stack panel is not the best control for stretching an image: if the stackpanel's orientation is vertical the item'a height is the item's desired height, and if the orientation is horizontal, the item's width is the item's desired width, so, if you want to stretch the image you can group it inside a content control, or (if there is no more controls) do not group.
I suggest you to use a dockpanel, the dock panel alows you put the items in the locations top, right, bottom and left:
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Alg="clr-namespace:AS.Views.DeformableModel"
xmlns:Controls="clr-namespace:Assergs.Windows.Controls;assembly=Assergs.Windows" x:Class="AS.Window1"
Title="Window1"
>
<DockPanel Margin="0,0,2,0">
<Controls:RibbonPanel DockPanel.Dock="Left" Header="Menu" Width="213.388">
<TreeView /> <!--The tree view will be vertican and horizontally stretch-->
</Controls:RibbonPanel>
<StatusBar DockPanel.Dock="Bottom" Height="41.433">
<Label Content="Pret" Width="36.737"/>
</StatusBar>
<Image Stretch="UniformToFill" Source="image-interface2.jpg"/> <!--The last item take all aviable space-->
</DockPanel>
</Window>
Hope this helps...
Read about Layout Containers.
http://www.codeproject.com/Articles/140613/WPF-Tutorial-Layout-Panels-Containers-Layout-Trans
In your case you may use dock panel as parent panel.
Use Grid or Border instead panels. (I have not tested this code)
<DockPanel Margin="0,0,2,0">
<Grid DockPanel.Dock="Bottom">
<Label Content="Pret" Height="41.433"/>
</Grid>
<Grid DockPanel.Dock="Left" Width="213">
<TreeView Width="210.449" HorizontalAlignment="Left"/>
</Grid>
<Grid>
<Image Source="image-interface2.jpg" Stretch="Fill"/>
</Grid>
</Grid>
I'm developing Windows Store App with using Caliburn Micro.
In one of the pages I have ContentControl, which display UserControl. In UserControl I have GridView. My question is: How to set UserControl.Width same as ContentControl.Width? Note: whet set UserControl.Width=Auto - width the same as GridView.Width
in page.xaml
<ContentControl x:Name="ActiveItem" />
in usercontrol.xaml
<UserControl
x:Class="Test.Views.GroupView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" Width="Auto" Height="Auto">
<Grid Margin="0,20">
<GridView x:Name="Groups" Margin="0" />
</Grid>
</UserControl>
UPDATE
Adding
VerticalAlignment="Stretch"
HorizontalAlignment="Stretch"
To UserControl doesn't solve the problem.
Figured this out after a lot of trial and error:
<ContentControl Name="MyContent" HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch">
The key is to use the Horizontal/Vertical*Content*Alignment property (not the Horizontal/VerticalAlignment properties).
Here is what you should do when problem like your's appears.
Try to set ContentControl's Background property to some disturbing color. For example Purple or Pink. And also set Background property on your UserControl for example Green. It will allow you to see where exactly is your ContentControl and where is UserControl. If you can't see any Green you can tell that content of UserControl is stretched to fill whole UserControl.
Try to set UserControl's VerticalAlignment and HorizontalAlignment properties to Stretch. FrameworkElement.HorizontalAlignment, VerticalAlignment
Note: In order to let these work. You can't explicitly set Width and Height on your UserControl.
Try to set ContentControl's VerticalContentAlignment and HorizontalContentAlignment to Stretch. Control.HorizontalContentAlignment, VerticalContentAlignment . These stretches the child element to fill the allocated layout space of the parent element.
If you still see some Purple or Pink then something's wrong again :) you can check Margin/Padding MSDN
If it's still messed up. Then I don't know how else can I help you. Last possible solution would be binding. And I am not sure if it works.
<UserControl
Width="{Binding RelativeSource=
{RelativeSource FindAncestor,
AncestorType={x:Type ContentControl}},
Path=ActualWidth}"
Height="{Binding RelativeSource=
{RelativeSource FindAncestor,
AncestorType={x:Type ContentControl}},
Path=ActualHeight}">
...
</UserControl>
I hope something helps. I believe you that it could be really annoying problem.
Especially for #AlexeiMalashkevich
I solve it with using binding like this:
In root Page you have:
<ContentControl x:Name="ActiveItem"/>
Then add the child page:
<Page
Height="{Binding ActualHeight, ElementName=ActiveItem}"
Width="{Binding ActualWidth, ElementName=ActiveItem}"
......
/>
And that's all.
You should be able to bind UserControl's width to the ContentControl's ActualWidth.
<local:MyUserControl1 Height="50" Width="{Binding ElementName=contentControl, Path=ActualWidth}"/>
Here is some sample code:
<Page
x:Class="stofUserControlWidth.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:stofUserControlWidth"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Border Background="Cyan"/>
<ContentControl Grid.Column="1" x:Name="contentControl">
<local:MyUserControl1 Height="50" Width="{Binding ElementName=contentControl, Path=ActualWidth}"/>
</ContentControl>
</Grid>
</Page>
Here is MyUserControl1.xaml code:
<UserControl
x:Class="stofUserControlWidth.MyUserControl1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:stofUserControlWidth"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
d:DesignHeight="300"
d:DesignWidth="400">
<Grid Background="Magenta">
</Grid>
</UserControl>
Hope this helps!
For me this is working:
<UserControl
...
Height="{Binding ActualHeight,
RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ContentControl}}}">
...
</UserControl>
You have to make sure that your ContentControl has the desired size.
For example my ContentControl look like this: It is always fill the whole size of the window. And the size of the UserControl in the ContentControl dinamically changes as well.
<Grid>
<ContentControl HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" DataContext="{Binding StartViewModel}" Name="ContentArea" />
</Grid>