I've got a user control defined as this:
<UserControl
x:Class="Client.UserControl1"
d:DesignWidth="640" d:DesignHeight="480" MinWidth="400" MinHeight="400"
ScrollViewer.HorizontalScrollBarVisibility="Auto"
ScrollViewer.VerticalScrollBarVisibility="Auto">
<Grid x:Name="LayoutRoot" Background="White">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="24"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<RichTextBox Margin="10" Grid.Row="1" HorizontalScrollBarVisibility="Auto">
<Paragraph><Run Text="RichTextBox"/></Paragraph>
</RichTextBox>
<sdk:Label Margin="0" Height="24" HorizontalAlignment="Center"
Content="Message"/>
</Grid>
</UserControl>
I then use this control in a page as follows:
<navigation:Page
Style="{StaticResource PageStyle}" ScrollViewer.HorizontalScrollBarVisibility="Auto"
ScrollViewer.VerticalScrollBarVisibility="Auto">
<Grid x:Name="LayoutRoot" Background="Blue"
ScrollViewer.HorizontalScrollBarVisibility="Auto"
ScrollViewer.VerticalScrollBarVisibility="Auto">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Client:UserControl1 Margin="10"/>
</Grid>
</navigation:Page>
I want the user control to fill the page. As the page expands, so does the user control. This works fine. However, I specify a minimum height and width for the user control. If the page is smaller than this, I want scroll bars to be shown. However, when I make the page smaller than the minimum size, no scrollbars appear.
I've tried wrapping the user control in a scrollviewer, but this does not give me the behaviour I want. It this case, the rich text box contains is now drawn in its entirety, i.e. it no longer has any scroll bars of its own. I still want the rich text box to be bound by the size of the page, i.e. if the browser is maximized and the rich text box contains 100s of lines of text, I can still see the border of the rich text box, and the rich text box will have scroll bars to allow viewing of its contenxt. When the browser window is smaller than the min size of the control, then I want scrollbars for the user control.
Is this possible?
Cheers
Just wrap a ScrollViewer around the "Client:UserControl1" on your page.
<ScrollViewer HorizontalScrollBarVisibility="Auto"
VerticalScrollBarVisibility="Auto">
<<Client:UserControl1 Margin="10"/>
</ScrollViewer>
Also remove all other references to ScrollViewer.HorizontalScrollBarVisibility and ScrollViewer.VerticalScrollBarVisibility.
Cheers
Related
The code below and screenshots show the issue I'm having below.
I need to have a listbox with Width set to Auto as the content size is variable. However, the number of items going into the listbox will also change, so sometimes a ScrollBar will be needed. The problem is, Auto Width doesn't seem to play well with a Scrollbar as per the images below. I could add a margin but I do not want a gap when no scroll bar is required.
I notice that this is only a problem when the textbox has a long string placed in it, if there is a short/no string entered, then the scrollBar presents correctly.
Is there a way to do this other than detecting if a ScrollBar is needed and dynamically adding a margin? I feel like there should be a way to achieve this in my XAML while still keeping the listbox column to be Width=Auto.
private void MainWindow_OnLoaded(object sender, RoutedEventArgs e)
{
for (int i = 0; i < 200; i++)
{
lbxDocs.Items.Add("TESTSTRING"+i);
}
txtImagePath.Text =
#"uPPvU18ijL9Tz6fqvwLsymkdxuS8h8jS9afzQ8i7LLXvrb2JO2hmPImVF5Dq5PZpdOkw2sTX9j6GeGL7IsaDuaf1ltY0MdzCRHGTZlUVkMa43meW3gavXAWMHyLPiyfGlHxuXcQOoH8ldxkYuxhVRcSJY3ZyCzlCsPjWuINTQyJCAU5hiDqroXWI8"+
"uPPvU18ijL9Tz6fqvwLsymkdxuS8h8jS9afzQ8i7LLXvrb2JO2hmPImVF5Dq5PZpdOkw2sTX9j6GeGL7IsaDuaf1ltY0MdzCRHGTZlUVkMa43meW3gavXAWMHyLPiyfGlHxuXcQOoH8ldxkYuxhVRcSJY3ZyCzlCsPjWuINTQyJCAU5hiDqroXWI8";
}
<Window x:Class="Grid_ScrollBar.MainWindow"
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"
xmlns:local="clr-namespace:Grid_ScrollBar"
mc:Ignorable="d" Loaded="MainWindow_OnLoaded"
TextOptions.TextRenderingMode="ClearType" WindowStartupLocation="CenterScreen"
TextOptions.TextFormattingMode="Display" Height="400" Width="500">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBox Name="txtImagePath"/>
<ListBox Name="lbxDocs" Grid.Column="1" Grid.Row="1"/>
</Grid>
</Window>
Scroll Bar is cut off;
Once we hit the longer string item in the ListBox the width increases to show the rest of the scrollbar;
The problem is that you are telling to your textbox to take all the available space, i.e. all the space left by your ListBox. Now since the firsts elements of your listbox take "less" space, WPF grant them the minimum space possible, and it doesn't take in count the scrollbar size.
When you have this kind of problem (size of content that can very) my best advice is to not set width to auto. Instead go with proportional sizing (this will avoid also the the effect of physically shift columns to make more room for your listbox items).
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="9*"/>
<ColumnDefinition Width="1*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBox Name="txtImagePath" Grid.Column="0" Grid.Row="0" TextWrapping="Wrap" Margin="0,0,10,0"/>
<ListBox Name="lbxDocs" Grid.Column="1" Grid.Row="1" />
</Grid>
you can add also TextWrapping="Wrap" to show the full text.
However if you really want to keep the width to auto you can force wpf to take in count the scrollbar using
<ScrollViewer Grid.Column="1" Grid.Row="1">
<ListBox Name="lbxDocs"/>
</ScrollViewer>
EDIT: to fix the problem with the scrollviewer you need to set the height of the listbox to the heigh of the scrollviewer, or the Auto setting will not work:
<ScrollViewer x:Name="test" Grid.Column="1" Grid.Row="1" VerticalScrollBarVisibility="Auto">
<ListBox Name="lbxDocs" Height="{Binding ElementName=test, Path=ActualHeight}"/>
</ScrollViewer>
try adding the scrollview to your listview without changing the rest of xaml
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBox Name="txtImagePath"/>
<ListBox Name="lbxDocs"
Grid.Column="1"
Grid.Row="1"
ScrollViewer.CanContentScroll="True"
ScrollViewer.VerticalScrollBarVisibility="Auto"
ScrollViewer.HorizontalScrollBarVisibility="Auto"
/>
Width = "*" means you will use all the rest of the available space.
Width = "Auto" means you will adjust the size of your content so that everything fits and not over any excess space
so (as you did) in your window will be column 1 adjusted to the size of the listview and column 0 with the rest of the window.
I have the following Grid with a TextBox in it:
<UserControl ...>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="30px"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="1px"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBox Grid.Column="1" Grid.RowSpan="3" AcceptsReturn="True"
TextWrapping="Wrap" HorizontalScrollBarVisibility="Hidden"
VerticalScrollBarVisibility="Visible" HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"/>
<!-- content in other cells of the Grid's first column -->
</Grid>
</UserControl>
I want the TextBox to fill all space that is available on the control (width and height-wise) and should the user enter more text than fits into it I want its vertical scrollbar to become active, without resizing the TextBox. What happens instead is that the size of the TextBox changes to accomodate the content and the whole grid grows with it.
How do I achieve what I need?
Edit: Here's an illustration of what happens.
The above screenshot is of the situation when the content fits comfortably into the TextBox. The below screenshot is of the situation when there is not enough room to fit all content - the TextBox is then resized to fit it and this resizes also the grid that it is placed in, making it look broken.
Edit 2: The project that demonstrates this behavior is here.
I have managed to solve this by adding an invisible Border in the same cells of the Grid as the TextBox, then setting TextBox' Width and Height to ActualWidth and ActualHeight of that Border respectively:
<Border x:Name="b" Grid.Column="1" Grid.RowSpan="3"
HorizontalAlignment="Stretch"/>
<TextBox AcceptsReturn="True" TextWrapping="Wrap" Grid.Column="1"
Grid.RowSpan="3" Width="{Binding ActualWidth, ElementName=b}"
Height="{Binding ActualHeight, ElementName=b}"
HorizontalScrollBarVisibility="Hidden"
VerticalScrollBarVisibility="Visible" HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"/>
This then caused the TextBox to stay of fixed Height regardless of its content, but there was another problem with its Width: it grew when the interface was expanded, but didn't shrink afterwards, because of the underlying ScrollViewer. The trick was to set that ScrollViewer's HorizontalScrollBarVisibility to Disabled, instead of Hidden as I had done previously.
I pushed changes of the example project to GitHub, so the solution is now available here.
The TextBox doesn't fill the Grid. You can confirm this yourself by specifying a Background for the Grid:
<UserControl>
<Grid Background="Yellow">
...
This is because the height of the Grid is 30 px + whatever the height of the TextBox is + 1 px. For the contents of the row 2 or 3 to fill the Grid, you need to change the Height of at least one of the RowDefinitions to *:
<UserControl>
<Grid Background="Yellow">
<Grid.RowDefinitions>
<RowDefinition Height="30px"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="1px"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBox Grid.Column="1" Grid.RowSpan="3" AcceptsReturn="True"
TextWrapping="Wrap" HorizontalScrollBarVisibility="Hidden"
VerticalScrollBarVisibility="Visible" HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"/>
</Grid>
</UserControl>
I am displaying a web browser inside a Grid in the XAML of my application. The browser currently displays websites correctly, and allows the user full interaction with the website.
However, for some reason, the <Grid> in which I am displaying the browser is not expanding to fill the application window when it is resized, and it appears that the CefSharp:ChromiumWebBrowser that I am using as my web browser is not expanding to fill the <Grid> in which I am displaying it...
When I run my application, it currently displays like this:
The border of the <Grid> in which the browser is displayed is the green rectangle- as you can see, the browser has not expanded to fill this area. If I expand the window of my application by dragging one of its corners, the window resizes to display:
From the second screenshot, you can see that the application window has been resized, but the content has not expanded to fill the new size of the window. Why is this? How can I get the website to fill the size of the browser element in which I am displaying it, and how can I get the browser itself to fill all of the available space in the <grid> in which it's displayed?
The XAML I am using to display this in my GUI is:
<Grid x:Name="grdBrowserHost" MinHeight="900" Height="Auto" MinWidth="1100" Width="Auto" Margin="0,0,0,0" DockPanel.Dock="Bottom" Grid.ColumnSpan="4" >
<cefSharp:ChromiumWebBrowser Name="browser" Height="Auto" Width="Auto" Grid.Row="0" Address="https://web.riviam.com" />
</Grid>
I tried editing the XAML to set the <Grid> Row & Column definitions to auto:
<Grid x:Name="grdBrowserHost" MinHeight="900" Height="Auto" MinWidth="1100" Width="Auto" Margin="0,0,-137,0" DockPanel.Dock="Bottom" Grid.ColumnSpan="4" >
<Grid.RowDefinitions>
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<cefSharp:ChromiumWebBrowser Name="browser" Height="Auto" Width="Auto" Grid.Row="0" Address="www.google.com" />
</Grid>
But this doesn't actually make a difference to how my application is displayed when it's run.
How can I resolve this, so that the <Grid> and its content are dynamically resized to fill the size of the window when it is resized?
<Grid x:Name="grdBrowserHost" MinHeight="900" Height="Auto" MinWidth="1100" Width="Auto" Margin="0,0,0,0" DockPanel.Dock="Bottom" Grid.ColumnSpan="4" >
<cefSharp:ChromiumWebBrowser
Name="browser"
Height="{Binding ElementName=grdBrowserHost,Path=ActualHeight}"
Width="{Binding ElementName=grdBrowserHost,Path=ActualWidth}"
Grid.Row="0" Address="https://web.riviam.com" />
</Grid>
My question is similar to:
Prevent WPF control from expanding beyond viewable area
with the difference that the accepted solution (specific to the issue with StackPanel) does not really help me much.
I have a Window that currently only contains the following Grid:
<Grid ShowGridLines="True">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="265"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="147*"/>
<RowDefinition Height="173*"/>
</Grid.RowDefinitions>
<Button Content="Button" HorizontalAlignment="Right" VerticalAlignment="Bottom" Width="75" Click="Button_Click" Grid.Row="1" Grid.Column="1"/>
<local:BatteryGraphicsView x:Name="batView" HorizontalAlignment="Stretch" ClipToBounds="True" Width="265"/>
</Grid>
I want now that if my GraphicsView extends over the width of its column, that the scrollbars are displayed and the control does not paint it self beyond the bounds of the column.
This happens as soon as I press the button.
The user control basically is a grid that contains WinFormsHosts, when pressing the button there are more columns created for the grid and so the grid grows
(Usercontrol grid xaml)
<ScrollViewer VerticalScrollBarVisibility="Hidden" HorizontalScrollBarVisibility="Auto" ClipToBounds="True">
<Grid x:Name="Maingrid" ClipToBounds="True">
<Grid.RowDefinitions>
<RowDefinition Height="40*"/>
<RowDefinition Height="20*"/>
<RowDefinition Height="40*"/>
</Grid.RowDefinitions>
<WindowsFormsHost x:Name="host1" />
<WindowsFormsHost x:Name="host2" Grid.Row="2"/>
</Grid>
</ScrollViewer>
While the Scollviewer realises that it needs to display it self, the mainGrid anyway is displayed beyond the bounds of the column.
In multiple related posts I saw that you need to set the "ClipToBounds" property to true, but I set the property for every control and there is still no reaction.
The problem is that your ScrollViewer inside your UserControl doesn't know what the GridColumn & and GridRow sizes are.
There are two things you can do.
1: Specify a MAX Width for your Column & Max Height for you Row
2: Instead of adding your scrollViewer in the UserControl, add it in your grid and give it a height and width.
In my wpf project I have one main window(Mainwindow.xaml) file and remaining all windows are user controls. If I click any menu of the mainwindow.xaml then the corresponding usercontrols will appear in the mainwindow.xaml form.
My requirement is, when the usercontrol window is resized, I need to resize all controls width (i.e textboxes,comoboxes,..etc). How can I achieve this.
First of all, the components you need to resize dynamically should not have fixed sizes. You should put everithing into Grid and set width/height to "Auto"/"x*"/ Alignment to stretch...
<UserControl ...>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="2*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="2*"/><!--2/5 of total height-->
<RowDefinition Height="3*"/>
</Grid.RowDefinitions>
<TextBlock Grid.Column="1" Grid.Row="1">Text </TextBlock>
<TextBox Grid.Column="2" >Enter</TextBox>
<TextBox Grid.Row="2" Grid.ColumnSpan="2">Button 5 Button 5 Button 5 Button 5</TextBox>
</Grid>
</UserControl>
Main
<Grid Width="Auto" HorizontalAlignment="Stretch">
<ContentControl ..." />
</Grid>