I don't know if this is possible but does anyone know if there is a way to put a user control inside a context menu, I have a dialog for adding items to a list but I would like when I click the add button for the control to be displayed in the context menu instead. (dont like having a lot of dialog's in my app).
Here is what I tried but it doesn't work:
<Button Grid.Column="2" Grid.Row="1" Content="Add Item" HorizontalAlignment="Right">
<Button.ContextMenu>
<ContextMenu>
<MenuItem>
<vm:MyControlView/>
</MenuItem>
</ContextMenu>
</Button.ContextMenu>
</Button>
Is there a way to achieve this? (or something similar)
You could try this link, it looks like you might be able to extend ContextMenu like John Dunn did to meet your needs.
Related
I am fairly new to WPF and have struggled trying to find an answer to this so maybe I am going about it the wrong way.
I have a ContextMenu that I wish to use multiple places so I have it defined as a Resource:
<Window.Resources>
<ContextMenu x:Key="MainContextMenu">
<MenuItem Header="Select All" Click="SelectAllButton_Click"/>
<MenuItem Header="Clear All" Click="ClearAllButton_Click"/>
<MenuItem Header="Export" Click="ExportButton_Click" Name="ExportCM"/>
<MenuItem Header="Priority" Click="PriorityButton_Click" Name="PriorityCM"/>
<MenuItem Header="Cancel" Click="CancelButton_Click" Name="CancelCM"/>
<MenuItem Header="Reallocate" Click="ReallocateButton_Click" Name="ReallocateCM"/>
<MenuItem Header="Release" Click="ReleaseButton_Click" Name="ReleaseCM"/>
<MenuItem Header="Hazard" Click="HazardButton_Click" Name="HazardCM"/>
<MenuItem Header="Reset" Click="ResetButton_Click" Name="ResetCM"/>
</ContextMenu>
</Window.Resources>
I also have a Menu with items with identical headers and click handlers but the Menu is not a resource since I only needed to place it once. With the Menu I am able to edit the visibility of certain MenuItems in codebehind. I would like to be able to do the same to my ContextMenu.
How can I access an individual ContextMenu MenuItem and set its visibility in code behind if my ContextMenu is a locally defined static resource?
You're looking for Custom Controls in WPF. You can extend a WPF control where you can add all your Menus / Menus Items and handle them as objects using XAML.
http://wpftutorial.net/HowToCreateACustomControl.html
After doing that, inside the Window you want to use your custom Menu, you need to add the namespace like in:
xmlns:controls="clr-namespace:YourProject.YourControl"
And then you can use your menu like this:
<controls:YourControl>
Also take a look at DataTemplates.
ContextMenu ctxmenu = (ContextMenu)this.Resources["MainContextMenu"];
And if you assign this context menu to say Button:Btn1, then Btn1.ContextMenu will give you the context menu of button Btn1.
To access a particular menuitem, you have btn1.ContextMenu.Items collections to play with.
I have a context menu that appears when a user right clicks which contains two menu items. The first item has a checkmark instead of the icon, and then a checkmark is placed on whichever one is clicked the next time the user right clicks. I have both IsCheckable and IsChecked set to 'False', but the checkmark still appears. Not sure what I'm doing wrong, any ideas?
This is the first time I right click, I don't want that check mark there.
This is what shows if I selected "add waypoint" the first time, and right clicked again. It should show this every time, but if I ever click "add known object", the checkmark always appears.
<ContextMenu Name="nodeContextMenu" >
<MenuItem x:Name="ko" IsCheckable="False" IsChecked="False" Header="Add Known Object" Click="Ko_Click" >
<MenuItem.Icon>
<Image Source="ko.png" Height="7.5" Width="7.5" />
</MenuItem.Icon>
</MenuItem>
<MenuItem x:Name="wa" IsCheckable="False" IsChecked="False" Header="Add Waypoint" Click="Wa_Click" >
<MenuItem.Icon>
<Image Source="w.png" Height="7.5" Width="7.5" />
</MenuItem.Icon>
</MenuItem>
</ContextMenu>
I found various elaborate WPF solutions for getting rid of the menu item checkmark to be really painful, so I ditched them all. Instead I solved it in a very simple way by having two menu items for what is effectively one menu item at runtime, and use Visibility=Collapsed to alternate between the two at runtime. This is incredibly simple whether you use bindings or events.
I used to have these menuitems as radio buttons, and had a method related to the radio buttons that did a function using the .IsChecked method. I had forgotten about that and it kept the first item checked every time. So I just got rid of it and it works fine. The snippet of code causing it is below:
knownObjectMenuItem.IsChecked = //random stuff
I have a context menu attached to a button on a toolbar on one of my controls in WPF (.NET 4.0). The context menu has a style assigned to it in the XAML that defines the context menu. Left clicking on the button opens the button's context menu if it isn't opened already.
Here's the relevant XAML:
<Button x:Name="fileButton" Foreground="White" Margin="7, 0, -3, 0" VerticalAlignment="Stretch" MaxHeight="70" MaxWidth="78" MinHeight="55" MinWidth="62" Style="{DynamicResource ImageButton}" utils:WpfImageUtil.Image="{StaticResource fileButton}" Template="{DynamicResource GlassButton}" Content="File" Visibility="Visible" Click="fileButton_Click">
<Button.ContextMenu>
<ContextMenu Style="{DynamicResource ContextMenuStyle}">
<MenuItem x:Name="saveMenuItem" Header="Save" Click="saveMenuItem_Click" Style="{DynamicResource MenuItemStyle}" />
<MenuItem x:Name="saveDrawingMenuItem" Header="Save Drawing" Click="saveMenuItem_Click" Style="{DynamicResource MenuItemStyle}" />
<MenuItem x:Name="openMenuItem" Header="Open" Style="{DynamicResource MenuItemStyle}">
<MenuItem x:Name="openFromFile" Header="From File" Style="{DynamicResource MenuItemStyle}" />
<MenuItem x:Name="openFromDesktop" Header="From Desktop" Style="{DynamicResource MenuItemStyle}" />
</MenuItem>
<MenuItem x:Name="iconsMenuItem" Header="Icons" ItemsSource="{Binding}" Style="{DynamicResource MenuItemStyle}"/>
<MenuItem x:Name="prefsMenuItem" Header="Preferences" Style="{DynamicResource MenuItemStyle}"/>
</ContextMenu>
</Button.ContextMenu>
</Button>
ContextMenuStyle is defined in a resource dictionary that is properly referenced.
When the context menu is opened with a left click, the style I have defined isn't applied to the menu, as shown below:
However, if the user right-clicks and opens the context menu the traditional way, the style is applied as expected:
Afterwards, left-clicking the button will show the style correctly:
I have been trying to figure this out for some time, but haven't been able to come up with any reason that this issue occurs. It seems like some kind of bug to me, but I'm not entirely sure. I also don't know what happens at the lower level when controls are right-clicked on that would cause the style to get applied correctly.
You should assign ContextMenu Style property in code (FindResource method msdn):
private void fileButton_Click(object sender, RoutedEventArgs e)
{
if (fileButton.ContextMenu.Style == null)
fileButton.ContextMenu.Style = this.FindResource("ContextMenuStyle") as Style;
fileButton.ContextMenu.IsOpen = true;
}
ContextMenu Overview (http://msdn.microsoft.com/en-US/library/ms742558.aspx)
A ContextMenu is attached to a specific control. The ContextMenu
element enables you to present users with a list of items that specify
commands or options that are associated with a particular control, for
example, a Button. Users right-click the control to make the menu
appear. ...
When you right-click on the control, style will be applied to the ContextMenu. So if you want to open ContextMenu in code, you should check if style is equal null and if it's true, you should assign appropriate style.
I have a datagrid and it contains the list of files from the folder. I want to display the default window files right click options in right click on the filename.
That is when ever i right click the filename in the datagrid, a default windows right click pop up should appear.
Can anyone help me to sort this out. The project is in C#.
Thank you.
You should be able to add a Context menu to your data grid. The Context Menu will allow you to add in all the regular Windows right click menu options. The example below only shows copy, cut and paste.
<my:DataGrid
ItemsSource="{Binding}"...>
<my:DataGrid.ContextMenu>
<ContextMenu >
<MenuItem Command="Cut" />
<MenuItem Command="Copy" />
<MenuItem Command="Paste" />
</ContextMenu>
</my:DataGrid.ContextMenu>
</my:DataGrid>
You are able to add icons to the menu options as well if you'd like by writing the menu items more like this.
<MenuItem Command="Paste">
<MenuItem.Icon>
<Image Source="Images/paste.png" />
</MenuItem.Icon>
</MenuItem>
I have the following piece of XAML code:
<controlsInputToolkit:ContextMenuService.ContextMenu>
<controlsInputToolkit:ContextMenu
Height="75"
Width="200"
IsOpen="False"
Visibility="Collapsed"
Closed="mnuPopup_Closed"
x:Name="mnuPopup">
<controlsInputToolkit:MenuItem
x:Name="mnuAnswer911Call"
Header="Answer Call"
Click="mnuAnswer911Call_Click"
IsEnabled="True"/>
<controlsInputToolkit:MenuItem
x:Name="mnuHangup911Call"
Header="Hangup call"
Click="mnuHangup911Call_Click"
IsEnabled="True"/>
</controlsInputToolkit:ContextMenu>
</controlsInputToolkit:ContextMenuService.ContextMenu>
Let's say, based on context, I wanted to add a submenu to the mnuAnswer911Call menu item. How would I go about it?
The Silverlight Context Menu does not support submenus yet. But there are open source alternatives to help you achieve this. Here is one:
www.sl4popupmenu.codeplex.com