How to close the WPF Popup in a WPF Control if clicked outside the Popup area or if the Parent Control is moved ?
I cannot check it from the Parent Control, Everything must be done by the control itself.
<Popup x:Name="pop" IsOpen="False" StaysOpen="False">
in WinRT and universal app you can use
IsLightDismissEnabled="True"
its will close automatically when click any where.
Related
I created a WPF application that has an overlay mode. In this mode, the whole application gets semi transparent. I'd now like to be able to click through this window to operate with elements behind it [other program UI's, desktop icons etc.]
I wonder if there is the possibility to configure the window right away to represent this behaviour. I set up my application window like this:
WindowStyle="None" AllowsTransparency="True" Opacity="0.5" Background="Black" IsHitTestVisible="True" Focusable="True" IsTabStop="False"
If I set the Background to x:Null or Transparent, I can click through the application. However, the application is not visible at all any more then.
If this is not possible directly, I thought about another solution:
When clicking on the Application, minimize it, execute another mouse click, and then maximize the application. I found some example code for a global mouse click which looks like this:
MouseEventArgs e = new MouseEventArgs(Mouse.PrimaryDevice, 0);
e.RoutedEvent = Mouse.MouseEnterEvent;
youUIElement.RaiseEvent(e);
// Or
InputManager.Current.ProcessInput(e);
However, I think this will not work when trying to do double-clicks.
So, general desire in a few words:
Semi-transparent WPF application, always on top, click-through. Also Keyboard input should pass through.
I set up a special hotkey that brings the application back.
Any helps / ideas?
I'm developing a custom control which has a button that opens a popup.
When that popup contains another instance of my custom control (which also has a button that opens another popup, e.g. a calendar) some problems occur.
The second (nested) popup won't act as suspected. Clicks don't work, won't close, when parent popup is closed.
Are there any specific best practices when using nested popups?
I had the same issue. We have a custom DropDownSubsetSelector control in our wpf controls library. This control has a Popup in its control template with StaysOpen="False". Today I had to put this control on a custom view that is located inside wpf's Popup control with StaysOpen="False" and was wondered of this unexpected nested Popups behaviour. My workaround for this issue was to inspect Microsoft's source code of a classical ComboBox control. You can find it here Combobox Source. As you can see its behaviour on a Popup control is exactly the same you expect from Popup being located on another Popup, and it's template has Popup inside (dropdown for selectable Items).
You must subscribe to events MouseDownEvent and LostMouseCaptureEvent and deal with mouse capturing for proper handling of MouseDownEvent outside of Popup control's area. Inspect and just copy some source code for your nested ExtendedPopup. You can inherit it from classical Popup.
Hi I have a WPF application with various UserControls that contain key functionality. I want to be able to show say a FileManager UserControl in a tab on the main application, or have a dialog pop up when required, that contains the same UserControl.
It seemed like a good idea to create a modal Window and set its Content to the FileManager Usercontrol. But when I am finished with it, I am not sure how to close the containing Window, using a button on the UserControl. Is there an elegant way of doing this without having to store a reference to the Window in the UserControl?
Thanks for any advice!
Create an Event which is called when the respective button on the user control is clicked. That way, the containing control can react to the event in the appropriate manner. For example, a dialog could just close itself.
Is closing a window something that is integral to the functionality of the control in all the contexts where the control is hosted? E.g Does closing a window apply to the case where the control is hosted in a tab of the main app?
If not then you might be better off separating window closing code out of the UserControl in into the window/dialog that is hosting it - using events or whatever to tie the two together.
I am hosting windowsforms control in WPF popup. Problems below:
If i make StaysOpen=False i can't interact with winform control. StaysOpen to false is required because when clicked outsidet the Popup region, it should close.
if i make StaysOpen=True i can interact with winform control but when i click outside the area of popup, it is not getting closed.
I tried setting StaysOpen=true in MouseEnter of popup and StaysOpen=False in MouseLeave, but MouseLeave fires as and when mouse is over winform control resulting in unexpected behaviour.
I even tried IsMouseCaptureWithin property of popup and found it does not work with winforms (i guess its a bug in framework).
Another problem, i was trying to close popup when root main form (which is windows form) is deactivated (pressed Alt+Tab), but this event (deactivate) is fired even when i enter into one of the controls in windowshostControl in popup.
Desired Behaviour:
should be able to host and interact with winform control in wpf popup.
on clicking on outside the area of popup, popup should close.
Appreciate any inputs.
Thanks.
I've had many problems with the defacto-standard popups in WPF, because they are in fact a new window with their own handle. This means if you drag your application around the screen, the popup stays put (it doesn't move with your window). It also means your popup has some strange behaviors and doesn't interact with your application in ways other controls normally do.
I've created 2 decorator classes to address this problem:
PopupDecorator.cs and
TimeoutPopupDecorator.cs
It's pretty simple to use:
Add a namespace declaration for the new popup classes. i.e.
xmlns:dday_wpf="clr-namespace:DDay.WPF"
Surround the area you want the popup to be able to be displayed with the decorator. i.e.
<dday_wpf:PopupDecorator x:Name="popup">
<dday_wpf:PopupDecorator.Popup>
... contents of popup go here ...
</dday_wpf:PopupDecorator.Popup>
... contents of panel go here ...
</dday_wpf:PopupDecorator>
It works pretty much identically to a normal Popup from that moment on.
This may not solve all your problems, but hopefully it helps.
This sounds a bit like my problem launching a modeless winform control from a WPF form.
Check out my question Why is my WPF textbox "kinda" readonly?.
The just being, based on what Doug said about popups being a window with its own handle, makes this applicable.
I want to create a UI sequence where the user clicks a button and it pops up a small panel below it with a button and a textbox and maybe a small list of items.
The dialog is non-modal and more importantly, it just goes away when you click somewhere else in the main window.
For example, when you click the 'Favorites' Star icon in Internet Explorer 7 or you click the Star in the location bar in Firefox twice and it brings up the bookmark editor dialog.
What's the cleanest way to achieve this?
Should I use a UserControl and absolutely fix the location of it when a button is clicked?
If so, how do I hide it when the user clicks somewhere else?
I'd say the cleanest way to do what you are looking for is to use a Popup. The Popup class displays an element that floats above the rest of the elements on the screen, but is non-modal and can be configured to disappear when the user clicks away from it - perfect for your non-modal dialog. The Popup class has properties that allow you to control where it shows up relative to another control (in your case, the button you want the user to press to open the popup).
Here's an all-XAML example:
<Grid>
<ToggleButton HorizontalAlignment="Center" VerticalAlignment="Top"
x:Name="PopButton" Content="Pop"/>
<Popup Placement="Bottom" PlacementTarget="{Binding ElementName=PopButton}" StaysOpen="False"
IsOpen="{Binding ElementName=PopButton, Path=IsChecked, Mode=TwoWay}">
<Rectangle Height="100" Width="200" Fill="Blue"/>
</Popup>
</Grid>
You can also use commands or event handlers to open/close the popup from code.
The Placement and PlacementTarget properties set where the popup will appear, and which control it will appear relative to (there are other options that allow you to have it appear relative to its current position and relative to the mouse, too). Setting StaysOpen to False will have WPF automatically close the popup when the user clicks outside of it.
By default, a Popup has no style of it's own - it's just a container for floating content - so you'll have to style it to look like your window chrome/toolbar/etc. as appropriate.