WPF MenuItem child controls width is less than parent menuitem - wpf

As shown in below code, The contextmenu has four menuitems one, two, three and four. MenuItem three has subitems embeded in list box and they are test1, test2 and test3. The width of test1 test2 and test3 is less than parent item (i.e menuitem or submenuitem). How to make the width stretched to takethe width of the parent.
<Window.Resources>
<ContextMenu x:Key="CustomContextMenu">
<MenuItem Header="One"></MenuItem>
<MenuItem Header="two"></MenuItem>
<MenuItem Header="three" Margin="0" x:Name="menu_three"
Padding="0"
Grid.IsSharedSizeScope="True" >
<StackPanel Background="Blue" Margin="0"
Width="{Binding Path=PlacementTarget.Parent.Width, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type MenuItem}}}">
<ListBox HorizontalAlignment="Stretch">
<ListBoxItem Content="test1"></ListBoxItem>
<ListBoxItem Content="test2"></ListBoxItem>
<ListBoxItem Content="test3"></ListBoxItem>
</ListBox>
</StackPanel>
</MenuItem>
<MenuItem Header="four"></MenuItem>
</ContextMenu>
</Window.Resources>
Thanks

Remove ListBox and use MenuItem to show your sub menu items
<ContextMenu>
<MenuItem Header="One"></MenuItem>
<MenuItem Header="two"></MenuItem>
<MenuItem Header="three" Margin="0" x:Name="menu_three" Padding="0" >
<MenuItem Header="test1"></MenuItem>
<MenuItem Header="test2"></MenuItem>
<MenuItem Header="test3"></MenuItem>
</MenuItem>
<MenuItem Header="four"></MenuItem>
</ContextMenu>

Related

xaml menu bottom and top alignment

I have a left-aligned vertical menu which stretches to my entire screen.
I want the first three options to end in the top left and the last two options to be in the bottom left.
Whatever I try I can't get the last two options to align to the bottom.
My current XAML is this:
<Menu HorizontalAlignment="Left">
<Menu.ItemsPanel>
<ItemsPanelTemplate >
<StackPanel Orientation="Vertical" VerticalAlignment="Stretch"/>
</ItemsPanelTemplate>
</Menu.ItemsPanel>
<MenuItem Header="Option A" VerticalAlignment="Top"/>
<MenuItem Header="Option B" VerticalAlignment="Top"/>
<MenuItem Header="Option C" VerticalAlignment="Top"/>
<MenuItem Header="Logout" VerticalAlignment="Bottom"/>
<MenuItem Header="Settings" VerticalAlignment="Bottom"/>
</Menu>
Current situation
Desired situation
Edit:
I'd prefer to not use rows if possible.
If you really do not want to use rows, consider using a DockPanel. Also note that the bottom-docked items are in reverse order.
<Menu HorizontalAlignment="Left">
<Menu.ItemsPanel>
<ItemsPanelTemplate >
<DockPanel VerticalAlignment="Stretch" LastChildFill="False"/>
</ItemsPanelTemplate>
</Menu.ItemsPanel>
<MenuItem Header="Option A" DockPanel.Dock="Top"/>
<MenuItem Header="Option B" DockPanel.Dock="Top"/>
<MenuItem Header="Option C" DockPanel.Dock="Top"/>
<MenuItem Header="Settings" DockPanel.Dock="Bottom"/>
<MenuItem Header="Logout" DockPanel.Dock="Bottom"/>
</Menu>

Vertically rotated Label on all subMenuItems inside MenuItem

I have a Menu in my app, that consists of few MenuItems. I'd like a vertical label on the left side of all the MenuItems. Like this (of course with grey background, pardon my paint skill):
I've tried it this way:
<Menu IsMainMenu="True" Grid.Row="0" Grid.ColumnSpan="3">
<MenuItem Header="_File">
<TextBlock Text="Type1" VerticalAlignment="Top" HorizontalAlignment="Left" Margin="0,0">
<TextBlock.LayoutTransform>
<RotateTransform Angle="-90"/>
</TextBlock.LayoutTransform>
</TextBlock>
<MenuItem Header="_Open" Command="{Binding OpenFileCommand}" IsEnabled="{Binding CanOpenFile}"/>
<Separator/>
<MenuItem Header="_Save" Command="{Binding SaveFileCommand}"/>
<MenuItem Header="_Save As" Command="{Binding SaveAsFileCommand}"/>
<Separator/>
<MenuItem Header="_Exit" Command="{Binding ExitAppCommand}"/>
</MenuItem>
</Menu>
But it produces an output like this:
Then I tried it via background image (transparent with just a plain text):
<Menu IsMainMenu="True" Grid.Row="0" Grid.ColumnSpan="3">
<MenuItem Header="_File">
<MenuItem.Background>
<ImageBrush ImageSource="{Binding SelectedObjectResourcePath}"/>
</MenuItem.Background>
<MenuItem Header="_Open" Command="{Binding OpenFileCommand}" IsEnabled="{Binding CanOpenFile}"/>
<Separator/>
<MenuItem Header="_Save" Command="{Binding SaveFileCommand}"/>
<MenuItem Header="_Save As" Command="{Binding SaveAsFileCommand}"/>
<Separator/>
<MenuItem Header="_Exit" Command="{Binding ExitAppCommand}"/>
</MenuItem>
</Menu>
But it sets the background for the first menuItem only:
Using StackPanel (with horizontal orientation) here is the best solution in my opinion. Check this out. You just need to make it look as good as you want :)
<Menu IsMainMenu="True" Grid.Row="0">
<MenuItem Header="_File">
<StackPanel Orientation="Horizontal">
<Label Content="Type1" Margin="-30" HorizontalContentAlignment="Center">
<Label.LayoutTransform>
<RotateTransform Angle="-90"/>
</Label.LayoutTransform>
</Label>
<StackPanel>
<MenuItem Header="_Open" Command="{Binding OpenFileCommand}" IsEnabled="{Binding CanOpenFile}"/>
<Separator/>
<MenuItem Header="_Save" Command="{Binding SaveFileCommand}"/>
<MenuItem Header="_Save As" Command="{Binding SaveAsFileCommand}"/>
<Separator/>
<MenuItem Header="_Exit" Command="{Binding ExitAppCommand}"/>
</StackPanel>
</StackPanel>
</MenuItem>
</Menu>

MenuItem with image as header ignores alignment

First of all, I know there are lot of questions about alignment in wpf, and I've read some of them, but none seems to work in this case...
What do I have
I've a menu, where the third MenuItem doesn't have a text but an image. To be exact, this one:
I want this element to be right aligned, so after looking at some examples and problem with alignment questions in SO, I'm using the following code:
<MenuItem HorizontalAlignment="Right" HorizontalContentAlignment="Right">
<MenuItem.Header>
<StackPanel>
<Image Source="Resources/Img/donarBoton.gif" UseLayoutRounding="False" />
</StackPanel>
</MenuItem.Header>
</MenuItem>
Problem
As you can see, even whith the HorizontalAlignment set to right, it doesn't appear on the right side.
I've read about it and found that the Menu where it is, need to have the same property set to Stretch, what I've tried too with no success. I even tried it with the DockPanel where the menu is located (just to try, I'm not used to WPF yet), but it does nothing either.
I've tried to add a text element after my image element too, in order to see if the problem is the MenuItem or any other thing in my configuration, but it didn't move to the right side either.
What am I doing wrong?
There's the full DockPanel code:
<DockPanel x:Name="superiorDock" Height="25" LastChildFill="False" VerticalAlignment="Top" Width="307">
<Menu x:Name="superiorMenu" Width="307" Height="25" DockPanel.Dock="Top" HorizontalAlignment="Stretch" >
<MenuItem Header="{Binding XPath=#topMenu_1}">
<MenuItem Header="{Binding XPath=#topMenu_2}"/>
<MenuItem Header="{Binding XPath=#topMenu_3}"/>
<Separator/>
<MenuItem Header="{Binding XPath=#topMenu_4}"/>
<Separator/>
<MenuItem Header="{Binding XPath=#topMenu_5}"/>
</MenuItem>
<MenuItem Header="{Binding XPath=#topMenu_6}">
<MenuItem Header="{Binding XPath=#topMenu_7}"/>
<Separator/>
<MenuItem Header="{Binding XPath=#topMenu_8}"/>
</MenuItem>
<MenuItem HorizontalAlignment="Right" HorizontalContentAlignment="Right">
<MenuItem.Header>
<StackPanel>
<Image Source="Resources/Img/donarBoton.gif" UseLayoutRounding="False" />
</StackPanel>
</MenuItem.Header>
</MenuItem>
</Menu>
</DockPanel>
Thanks in advance
Use this:
<DockPanel x:Name="superiorDock" Height="25" LastChildFill="False" VerticalAlignment="Top" Width="307">
<Menu x:Name="superiorMenu" Width="307" Height="25" DockPanel.Dock="Top" HorizontalAlignment="Stretch">
<Menu.ItemsPanel>
<ItemsPanelTemplate>
<DockPanel HorizontalAlignment="Stretch" />
</ItemsPanelTemplate>
</Menu.ItemsPanel>
<MenuItem Header="{Binding XPath=#topMenu_1}">
<MenuItem Header="{Binding XPath=#topMenu_2}"/>
<MenuItem Header="{Binding XPath=#topMenu_3}"/>
<Separator/>
<MenuItem Header="{Binding XPath=#topMenu_4}"/>
<Separator/>
<MenuItem Header="{Binding XPath=#topMenu_5}"/>
</MenuItem>
<MenuItem Header="{Binding XPath=#topMenu_6}">
<MenuItem Header="{Binding XPath=#topMenu_7}"/>
<Separator/>
<MenuItem Header="{Binding XPath=#topMenu_8}"/>
</MenuItem>
<MenuItem HorizontalAlignment="Right">
<MenuItem.Header>
<StackPanel>
<Image Source="Resources/Img/donarBoton.gif" UseLayoutRounding="False" />
</StackPanel>
</MenuItem.Header>
</MenuItem>
</Menu>
</DockPanel>
The default ItemsPanel of the Menu uses a WrapPanel. The panel defined in the ItemsPanel will be used as the container of the MenuItems.
WrapPanel doesn't respect the HorizontalAlignment property of its children. That's why we change the ItemsPanel to one that does support this: DockPanel.

XAML Centering menuitem

So I made a simple menu with a Width of 55 I try to make my title ("FILE") centered within the button itself while still being on the left of the window.
At the moment the basic code looks like that
<Menu Height="25" VerticalAlignment="Top" Width="800" Margin="0">
<MenuItem Header="File" Margin="0" Height="25" Width="55" HorizontalContentAlignment="Center">
<MenuItem Header="Login"/>
<MenuItem Header="New User"/>
...
</MenuItem> </Menu>
I've already tried playing around with a code like
<Menu.ItemsPanel>
<ItemsPanelTemplate>
<Grid/>
</ItemsPanelTemplate>
</Menu.ItemsPanel>
To remove the grid but no sucess it's only the actual menu being centered and not the text "FILE" within the button.
Here's an example of what the "FILE" looks like at the moment and I try to make it centered within the blue area.
http://i.stack.imgur.com/KRXw2.png
(Cannot post the actual image I don't have enough rep.)
Thanks.
You an achieve this by setting the MenuItem's header template to be a TextBlock, with the TextBlock being the same width of the MenuItem itself. Also, you will need to add a Margin to compensate for the default MenuItem template.
<Menu Height="25" VerticalAlignment="Top" Width="800" Margin="0">
<MenuItem Margin="0" Height="25" Width="55" HorizontalContentAlignment="Center">
<MenuItem.Header>
<TextBlock Text="File" HorizontalAlignment="Stretch" Margin="-7" Width="55" TextAlignment="Center"/>
</MenuItem.Header>
<MenuItem Header="Login"/>
<MenuItem Header="New User"/>
</MenuItem>
</Menu>

Center header in menu control

How do I vertically center a header in the menu control?
This was my try:
<MenuItem Header="File" StaysOpenOnClick="True" FontFamily="Arial" VerticalAlignment="Center">
<MenuItem Header="Open" Click="Open_Click" IsEnabled="True"/>
</MenuItem>
</Menu>
But its aligned to the Top-left.
What am I doing wrong?
[EDIT]
My whole menu now looks like this:
<Menu Canvas.Left="0" Canvas.Top="0" Name="menu1" Margin="0,0,0,384">
<MenuItem Header="File" StaysOpenOnClick="True" FontFamily="Arial" VerticalAlignment="Center">
<MenuItem Click="Open_Click" IsEnabled="True">
<MenuItem.Header>
<TextBlock Text="Open" VerticalAlignment="Center"/>
</MenuItem.Header>
</MenuItem>
</MenuItem>
</Menu>
The header text 'file' still isn't vertically centered (which is what i want to center).
What exactly is this code centering? Is it the text 'open'?
[/EDIT]
If you want to format the header you'll need to explicitly layout the header control:
<MenuItem StaysOpenOnClick="True" FontFamily="Arial" VerticalAlignment="Center">
<MenuItem Click="Open_Click" IsEnabled="True">
<MenuItem.Header>
<TextBlock Text="Open" VerticalAlignment="Center"/>
</MenuItem.Header>
</MenuItem>
</Menu>
Update:
To format the position of a MenuItem in the Menu you'll need to override the Menu's ItemsPanelTemplate. By default the Menu uses a vertical WrapPanel which justifies the items to the top. Replace the default with a panel of your choice (StackPanel, Grid, DockPanel, etc) and you'll be able center the menu items as you please. Here's an example:
<Menu Canvas.Left="0" Canvas.Top="0" Name="menu1" Margin="0,0,0,384">
<Menu.ItemsPanel>
<ItemsPanelTemplate>
<Grid/>
</ItemsPanelTemplate>
</Menu.ItemsPanel>
<MenuItem Header="File" StaysOpenOnClick="True" FontFamily="Arial" VerticalAlignment="Center" >
<MenuItem Header="Open" Click="Open_Click" IsEnabled="True"/>
</MenuItem>
</Menu>
Information gathered from this post on MSDN.
I think you would want to set the VerticalContentAlignment. If the aligmnet is still not to your liking there is probably a problem with the default MenuItem Template, it may not bind to the property or there are some margins or Paddings which shift the header.

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