I'm havnig some beginner's problem with WPF. I want to scale up my ribbon, so that it spans the entire window width, the other controls are doing just that, just my ribbon doesn't want to. It sits in the upper left corner with a width of maybe 100 pixels. I can scale it up manually by giving it a width, but it doesn't take its width from the grid column like the other controls do.
What am I missing?
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="100"/>
<RowDefinition Height="*"/>
<RowDefinition Height="20"/>
</Grid.RowDefinitions>
<Custom:Ribbon x:Name="mainRibbon" Grid.Row="0" Grid.Column="0" HorizontalAlignment="Left" Margin="0,0,0,0" VerticalAlignment="Top"/>
<DockPanel x:Name="mainPanel" Grid.Row="1" LastChildFill="False"/>
<StatusBar x:Name="mainStatusbar" Grid.Row="2"/>
</Grid>
Related
I have a grid that has a header, content and a footer:
<Grid.RowDefinitions>
<RowDefinition Height="55"/> <!--HEADER-->
<RowDefinition Height="*"/> <!--CONTENT-->
<RowDefinition Height="55"/> <!--FOOTER-->
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="30"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="30"/>
</Grid.ColumnDefinitions>
<Rectangle Grid.Row="0" Grid.ColumnSpan="3"></Rectangle>
<ScrollViewer Grid.Row="1" Grid.Column="1" >
<Grid>
...
</Grid>
</ScrollViewer>
<Rectangle Grid.Row="3" Grid.ColumnSpan="3"></Rectangle>
</Grid>
I want to have it so that the header and footer are fixed and the content is scrollable. Within the second nested grid there is a lot of content, hence the scroll view. When I run the application, the scrollviewer still scrolls with the header and footer! I can't figure out what I'm doing wrong, is there a better layout I should be using?
Please let me know! I'd rather not use C#.
Thanks!
Unless you are doing something strange either around the XAML you have posted or inside the nested Grid object, your XAML works as you intended.
I very slightly modified your XAML, just to visibly show your header and footer, and to add some content to your inner grid.
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="55"/><!--HEADER-->
<RowDefinition Height="*"/><!--CONTENT-->
<RowDefinition Height="55"/><!--FOOTER-->
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="30"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="30"/>
</Grid.ColumnDefinitions>
<Rectangle Grid.Row="0" Grid.ColumnSpan="3" Height="55" Fill="Red"/>
<ScrollViewer Grid.Row="1" Grid.Column="1" >
<Grid >
<ListBox ItemsSource="{Binding Path=myItems, FallbackValue='123456789abcdefghijklmno'}"/>
</Grid>
</ScrollViewer>
<Rectangle Grid.Row="3" Grid.ColumnSpan="3" Height="55" Fill="Blue"/>
</Grid>
Shown below is the result. Your ScrollViewer scrolls just fine while leaving the header and footer in place.
I'm not sure what else you have going on in your window, but this is the only XAML in the window I used for testing, and it works perfectly. As a note, I limited the height of the window to '400' so the inner grid did not continue to grow since it's height was set to *. You can achieve the same result by setting a maximum height on your outer Grid.
I am trying to get something like an image with adjustable margins done. The image itself is actually a path and resides in a StackPanel, stretching vertically. The StackPanel's width can be adjusted, and I want to keep the image's ratio and the ratio of path size to margin.
<StackPanel>
<Grid HorizontalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="0.25*"/>
<RowDefinition Height="0.5*"/>
<RowDefinition Height="0.25*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.25*"/>
<ColumnDefinition Width="0.5*"/>
<ColumnDefinition Width="0.25*"/>
</Grid.ColumnDefintions>
<Path Grid.Row="1"
Grid.Column="1"
Data="...blabla..."
Fill="#FF0072C6"
Stretch="UniformToFill"/>
</Grid>
</StackPanel>
Now, the problem is, even though the path object gets drawn in the grid, the first and third rows are always of zero height, instead of getting set based on the height of the 2nd row. I know this happens because the Grid resides in a StackPanel, which ignores automatic height settings and doesn't even let the Grid stretch vertically (or horizontally depending on orientation). It does work if I set a fixed height to the grid but that would ruin the aspect ratio of the image when resizing. How can I get this to work?
This is what I have:
This is what I want:
EDIT:
It seems there is confusion concerning my question. So to hopefully clarify, here's the desired result after resizing the StackPanel:
As you can see, the whole grid is supposed to resize like it was an actual image. The Grid should keep its aspect ratio. This is not about the Path inside the Grid.
If i have correctly understood the problem, a simple solution could be fixing sizes and using a viewbox:
<StackPanel>
<!--The other rows-->
<Viewbox>
<Grid Width="100" Height="100">
<Grid.RowDefinitions>
<RowDefinition Height="25"/>
<RowDefinition Height="50"/>
<RowDefinition Height="25"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="25"/>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="25"/>
</Grid.ColumnDefinitions>
<Path Grid.Row="1" Grid.Column="1" Data="M8.5,13.5L11,16.5L14.5,12L19,18H5M21,19V5C21,3.89 20.1,3 19,3H5A2,2 0 0,0 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19Z" Fill="Blue" Stretch="Uniform" />
</Grid>
</Viewbox>
</StackPanel>
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 designed my page to be 4:3 scalable and I'd like to have my grid to scale to 4:3 on any screen.
For example, on a 1900x1200, my grid will scale to 1600x1200 and we'll have 150px on each side of my grid. How can i manage to have this behavior ?
I've started with the following lines :
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="1024*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="768*"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid Grid.Row="1" Grid.Column="1" Name="my_grid" />
</Grid>
But I don't see how to manage the 4:3 thing. I'd like to force my grid to stretch until it has the highest 4:3 resolution possible and then let the free space on the sides.
Do you think I can manage to do this only in WPF ?
Thanks
You could use the ViewBox control. Design your XAML as you have done and place it inside it. The ViewBox will scale to fit the content to the available size. It will not resize the content so everything (ratios, width, etc.) will be left intact.
See http://msdn.microsoft.com/en-us/library/system.windows.controls.viewbox.aspx
Thanks to Sascha i did :
<Viewbox Name="grid_jeu" Stretch="Uniform" HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Column="1" Grid.Row="1" >
<MyControl Name="my_grid" />
</Viewbox>
My Control is designed this way :
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="32" MaxHeight="32"/>
<RowDefinition Height="72" MaxHeight="72"/>
<RowDefinition Height="10" MaxHeight="10"/>
<RowDefinition Height="*"/>
<RowDefinition Height="20" MaxHeight="20"/>
<RowDefinition Height="90" MaxHeight="90"/>
<RowDefinition Height="32" MaxHeight="32"/>
</Grid.RowDefinitions>
</Grid>
I'd like to have only one row and one column which scale. As you can see I tried to put "MaxHeight" and "MaxWidth" to avoid my rows to scale but it doesn't work. When I launch my application I have my 309px column which scales to 420.
From past 3-4 days i am trying to learn WPF.
As a sample xaml ,i tried to create a grid and place some controls in it in the form of textblocks and text boxes.
The problem i am facing is that when i keep on enter the texts in the text boxes ,then my text boxes width keep on increasing,which in turn will ruin my whole form.
Can anyone please help me fixing the issue.
Here is my sample XAML Code which consists of text boxes:
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="2*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBox Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="2" FontSize="25" Margin="5 30 130 0"/>
<TextBox Grid.Row="2" FontSize="25" Grid.Column="1" Grid.ColumnSpan="2" Margin="5 30 130 0"/>
<TextBox Grid.Row="3" FontSize="25" Grid.Column="1" Margin="5 30 160 0"/>
<TextBox Grid.Row="5" FontSize="25" Grid.Column="1" Grid.ColumnSpan="2" Margin="5 30 130 0"/>
</Grid>
Please anyone help me with this regard.All sorts of help will be appreciated.
You can use AcceptsReturn and TextWrapping properties on TextBox to allow newlines and allow text to wrap when the text size exceeds the width of the TextBox respectively
e.g.
<TextBox TextWrapping="Wrap" AcceptsReturn="true" />
AcceptsReturn ensures that the user can press return instead of CTRL + Return to put a newline in the text box. Otherwise the textbox loses focus and the default button is pressed as per the standard behaviour. (I think if there is no default button a newline is inserted anyway)
Are you sure the TextBox is getting bigger or is it just filling up with text?
For test put a border brush on it and HorizontalContentAlignment="Stretch".
If you want to constrain the width then set width otherwise it is going to use all available space.
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="40"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBox Text="text" BorderBrush="Red" BorderThickness="2" HorizontalContentAlignment="Stretch" />
</Grid>