<telerik:RadExpander Header="View My Team" HorizontalAlignment="Left" Width="274" Margin="34,170,0,450" FontSize="20">
<ListBox x:Name="myTeam" HorizontalAlignment="Left" Height="214" VerticalAlignment="Top" Width="264" Margin="0,0,-103,-1" Background="Transparent" Foreground="{x:Null}" BorderBrush="{x:Null}">
<MenuItem Header="Ben Clarke" Background="Transparent"/>
<MenuItem Header="Jack Davies" Background="Transparent"/>
<MenuItem Header="Harry Potter" Background="Transparent"/>
<MenuItem Header="Bill Gates" Background="Transparent"/>
</ListBox>
</telerik:RadExpander>
I have this code where my list box is inside the expander which is all working fine, but i cannot get the list box to be transparent background so that it just shows the names and then the roll-over effect etc ... The background is just appearing white.
As you can see i have added the background Transparent to all the MenuItems and the Listbox itself and it still hasn't worked :(
Maybe some usage of the Opacity property can do it? Either on the ListBox or on the MenuItems (don't know if they got Opacity property)?
Related
If I use this code:
<MenuItem x:Name="MenuSave" Header="Save" IsEnabled="False"/>
when MenuSave is disabled (in real code by a RoutedUICommand programmatically), the Header is disabled and text is gray.
But if I need more text like here:
<MenuItem x:Name="MenuSaveAs" IsEnabled="False">
<MenuItem.Header >
<StackPanel Orientation="Horizontal">
<TextBlock Text="Save as"/>
<TextBlock> ...</TextBlock>
</StackPanel>
</MenuItem.Header>
</MenuItem>
In this case, the Header is disabled but text is not gray.
How can I obtain text gray with composite text?
This is just simplified code to explain the problem, the real code is combination of translated terms.
If you add the TextBlock thorough a HeaderTemplate, the color will be applied for the disabled state. By the way, you can use multiple Runs instead, so the same TextBlock is populated. If you bind a data item as Header, you can bind its properties in the template to the Runs.
<MenuItem x:Name="MenuSaveAs" IsEnabled="False">
<MenuItem.HeaderTemplate>
<DataTemplate>
<TextBlock>
<Run Text="Save as"/>
<Run> ...</Run>
</TextBlock>
</DataTemplate>
</MenuItem.HeaderTemplate>
</MenuItem>
Alternatively, if you need to format a string with a bound property, use HeaderStringFormat.
<MenuItem x:Name="MenuSaveAs"
IsEnabled="False"
Header="{Binding NameOfTheSavedItem}"
HeaderStringFormat="Save as {0}...">
If you really insist on setting the header directly, a workaround would be to bind the Foreground of TextBlock explicitly to the TextElement.Foreground of the ContentPresenter in the MenuItem control template. You can bind it on each TextBlock or add an implicit style that applies to all TextBlocks in scope automatically. Please note the word all.
<Menu>
<Menu.Resources>
<Style TargetType="TextBlock" BasedOn="{StaticResource {x:Type TextBlock}}">
<Setter Property="Foreground" Value="{Binding (TextElement.Foreground), RelativeSource={RelativeSource AncestorType=ContentPresenter}}"/>
</Style>
</Menu.Resources>
<MenuItem x:Name="MenuSaveAs"
IsEnabled="True">
<MenuItem.Header>
<StackPanel Orientation="Horizontal">
<TextBlock Padding="0" Text="Save as"/>
<TextBlock Padding="0" Text="..."/>
</StackPanel>
</MenuItem.Header>
</MenuItem>
</Menu>
Please be aware that I suggest to use a single TextBlock with Runs for sentences or paragraphs in general, because panels with multiple TextBlocks result in incorrect spacing and alignment that do not match the typesetting that TextBlock and other document related types provide. It usually looks odd and disjointed and does not take into account the characteristics of a font.
I found an other easy way using <Label Padding="0"..>, instead af <TextBlock ..>:
<MenuItem x:Name="MenuSaveAs" IsEnabled="False">
<MenuItem.Header >
<StackPanel Orientation="Horizontal">
<Label Padding="0" Content="Save as"/>
<Label Padding="0" Content="..."/>
</StackPanel>
</MenuItem.Header>
Hi I want to click through my listBox (click on empty space) and want the click on the underlying border control. I'm really sure that I have done this in the past using {x:Null} as the Background for a control. But this time it doesn't work.
Any hint why?
<Grid>
<Border x:Name="BrushBorder" Background="{Binding ActualBrush}" Margin="7,0" Height="10"
VerticalAlignment="Top" Cursor="Pen">
<dxmvvm:Interaction.Behaviors>
<dxmvvm:EventToCommand EventName="MouseDown" Command="{Binding NewGradientStopCommand}" PassEventArgsToCommand="True" />
</dxmvvm:Interaction.Behaviors>
</Border>
<ListBox x:Name="GradientStopListBox" ItemsSource="{Binding GradientStops}" SelectedItem="{Binding ActualGradientStop}"
HorizontalContentAlignment="Stretch"
VerticalContentAlignment="Stretch"
Background="{x:Null}" BorderBrush="{x:Null}">
I found the answer. The ListBox includes a ScrollViewer and this is causing the mouse click the stay in the ListBox regradless of the BackgroundBrush.
See this question for further information:
Transparent WPF ListBox with selectable items
Can someone suggest the best way to have a button with an arrow and dropdown list like in visual studio toolbar button new item. As you can find in VS the mouse hover is highlighting both default button and arrow button and after selecting an item from list the default button is changing according your selection.
Here is a piece of code which is showing drop down menu, but not for full functionality described above:
<StackPanel Orientation="Horizontal">
<Border CornerRadius="0" BorderBrush="Black" BorderThickness="1">
<Button Name="CreateButton" Click="CreateButton_Click" Background="Transparent" BorderBrush="{x:Null}">
<Image Source="/OMS.Resources;component/Resources/Images/LibraryImages/add1.png" />
<Button.ContextMenu>
<ContextMenu HorizontalAlignment="Right">
<MenuItem Header=" doc" Click="CreateDocButton_Click">
<MenuItem.Icon>
<Image Source="/OMS.Resources;component/Resources/Images/LibraryImages/add_sheet.png" Width="24" Height="24" />
</MenuItem.Icon>
</MenuItem>
<MenuItem Header=" xls" Click="CreateXlsButton_Click">
<MenuItem.Icon>
<Image Source="/OMS.Resources;component/Resources/Images/LibraryImages/add_sheet.png" Width="24" Height="24" />
</MenuItem.Icon>
</MenuItem>
<MenuItem Header=" txt" Click="CreateTxtButton_Click">
<MenuItem.Icon>
<Image Source="/OMS.Resources;component/Resources/Images/LibraryImages/add_sheet.png" Width="24" Height="24" />
</MenuItem.Icon>
</MenuItem>
</ContextMenu>
</Button.ContextMenu>
</Button>
</Border>
<Border CornerRadius="0" BorderBrush="Black" BorderThickness="1">
<Button HorizontalAlignment="Left" VerticalAlignment="Stretch" Background="Transparent" BorderBrush="{x:Null}"
ContextMenuService.IsEnabled="False" Click="AddButtonContextMenu_Click">
<Image Source="/OMS.Resources;component/Resources/Images/LibraryImages/arrow_down.png" VerticalAlignment="Center" Width="9" />
</Button>
</Border>
</StackPanel>
The solution is to make use a menu item and decorate it.
XAML Code:
<MenuItem Click="AddPresetButton_Click" x:Name="AddPresetButton">
<MenuItem.Icon>
<Image Source="/MyApp.Application;component/Resources/add.png" Height="20"/>
</MenuItem.Icon>
<MenuItem.Header>
<StackPanel Orientation="Horizontal">
<TextBlock Text="Add Preset"/>
<Image Source="/MyApp.Application;component/Resources/arrow_down_simple.png"
Height="10" Margin="2,0,0,0"/>
</StackPanel>
</MenuItem.Header>
<MenuItem.ContextMenu>
<ContextMenu>
<MenuItem Header="Add 1"/>
<MenuItem Header="Add 2"/>
<MenuItem Header="Add 3"/>
</ContextMenu>
</MenuItem.ContextMenu>
</MenuItem>
C# Code:
When the menu is pressed the context menu is opened.
private void AddPresetButton_Click(object sender, RoutedEventArgs e)
{
var addButton = sender as FrameworkElement;
if (addButton != null)
{
addButton.ContextMenu.IsOpen = true;
}
}
It looks like you have three problems to solve:
Styling / Layout
Highlight dropdown and button OnMouseOver
Change default button according to menu's last selection
Styling / Layout
Here are a couple of examples:
http://dvoituron.wordpress.com/2011/01/06/toolbar-dropdownbutton-in-wpf/
http://blogs.msdn.com/b/llobo/archive/2006/10/25/split-button-in-wpf.aspx
I am sure there are many other ways (e.g. using a plain button and ComboBox styled appropriately)
Highlighting dropdown and button OnMouseOver
Experiment with triggers; e.g:
WPF Mouseover Trigger Effect for Child Controls
WPF - How to change children's style on mouseover of parent
Change default button according to menu's last selection
Try the MVVM approach:
The button element will be bound to a property on your ViewModel. Each menu item will call an action (ICommand) in your ViewModel. This ViewModel will know which menu item was called, and update the button's property on the ViewModel. The button will automatically update using data binding.
I have a simple ListView bound to a collection of Calculations. The view calls the calc Name property in the display. I have set the contextmenu to the individual items in the listview but on right click the context menu shows up as a tiny box with nothing in. What am i missing?
<ListView x:Name="CalcList" ItemsSource="{Binding Calculations}">
<ListView.ItemTemplate>
<DataTemplate DataType="x:Type lib:Calculation">
<DataTemplate.Resources>
<ContextMenu x:Key="CalcMenu">
<MenuItem Header="Delete Calculation" Click="MenuItem_Click"/>
<MenuItem Header="Another"/>
<MenuItem Header="Another"/>
</ContextMenu>
</DataTemplate.Resources>
<Border BorderBrush="Black" BorderThickness="1" Margin="2">
<Border.ContextMenu>
<ContextMenu ContextMenu="{StaticResource CalcMenu}"/>
</Border.ContextMenu>
<TextBlock MouseLeftButtonDown="DisplayCalc" Text="{Binding Path=Name}"></TextBlock>
</Border>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
Thanks.
If anything, you have a syntax error the way you define the Border.ContextMenu element. The correct syntax (of the Border Element):
<Border BorderBrush="Black" BorderThickness="1"
Margin="2"
ContextMenu="{StaticResource CalcMenu}">
<TextBlock ... />
</Border>
Saying that, there is a lot of optimization you can do. First, instead of instantiating a context menu for each item, you can move the CalcMenu to the section (one level up), or even farther up - to the main window.
Second, why do you define a separate context menu for each item? Is it really important context menu won't popu when mouse is in the margin between items? simply set the context menu to the entire list:
<ListView x:Name="CalcList" ContextMenu="{StaticResource CalcMenu}">
...
and define the CalcMenu as a main window resources, or inline the ListView element (not a static resource).
I'm trying to find a way to get rid of the border around the container of the MenuItems of a menu, in Expression Blend 4.
Here is an image of what I mean, I'd like to make the big white border around Item2 and Item3 disappear.
http://i.stack.imgur.com/dhOwY.png
And here is the XAML of this menu:
<Menu Background="{DynamicResource MenuGradient}" Margin="8,3,0,0" Height="26" VerticalAlignment="Top" ItemTemplate="{DynamicResource GeneratedMenuItem}">
<MenuItem x:Name="itm1" Header="Item1" FontSize="16" Foreground="White" Template="{DynamicResource CustomMenuItemStyle}">
<MenuItem x:Name="itm2" Header="Item2" Style="{DynamicResource CustomSubMenuItemStyle}"/>
<MenuItem x:Name="itm3" Header="Item3" Style="{DynamicResource CustomSubMenuItemStyle}"/>
</MenuItem>
<MenuItem x:Name="itmOptions" Header="Options" Foreground="White" FontSize="16" Template="{DynamicResource CustomMenuItemStyle}"/>
</Menu>
I think you need to edit the popup part inside the template of the menu item.