I have a Windows Modern App with a custom cursor, that is implemented by having an image that follows the system's cursor.
I just add the custom cursor image to the main grid of my application and everything works fine.
public MainPage() : base(true)
{
this.InitializeComponent();
MainPageGrid.Children.Add(new CustomCursor());
}
But when a popup opens, it gets above my custom cursor. Is there anyway that I can set the Z-index (or something similar) of a component in order for it to be the uppermost visual component of my modern application?
I would recommend using an actual custom cursor. I think this article looks like a decent intro to using these. You could also check this question for some tips on changing cursors. Other than that - I don't think you can tell when a random popup opens. You can poll for these with VisualTreeHelper.GetOpenPopups(), and then do something to make your popup show on top (maybe just reopening would work or maybe you'd need to create a new one every time) but that might not give you a good user experience or performance. You could also figure out all the events that could display a popup from ComboBoxes, Flyouts etc, but that sounds painful. It would probably be best to create an attached behavior that you could attach to all such popup-source-elements to trigger z-index fix-ups of your XAML-rendered custom cursor...
There is no need to implement a component as a custom cursor, as it is possible to override the maximum size limitation:
How to override maximum 32x32 mouse size in Windows like this program can
Related
I need to access a WPF usercontrol's designheight and designwidth at runtime. I know this is impossible, so I'll explain why I want to do it, and hopefully someone can provide an example of the right approach.
From a C# winforms app, I open a new window containing a very large WPF usercontrol. If the monitor I'm running on can handle it, I want it to open the window at the full design size of the usercontrol. If the monitor I'm running on can't handle it, then I want to open the window as large as possible, leaving 1 pixel on each side of the screen. So I need to know the usercontrol's current design width and height before the usercontrol is displayed.
I want to avoid hard coding values in the winforms app, or using unbound public properties in the user control, because then I have to trust other developers to update them when they change the user control. I don't know if it's possible to bind a local variable to designheight or designwidth, or how to code that in XAML. Since I don't know a lot of WPF, there may be some other way to reach the goal that I don't know about.
Thanks for your help and advice.
Why don't you try something like Resize WPF Window and contents depening on screen resolution
The answer suggests that you bind the screen size to the window height and width. It will automatically size the window according to screen size. You can even set a % value for the size of the window.
I would like the same tool tip message (the one entered in the "ToolTip on myControlId" field) to be displayed when the mouse is hovered over an area which contains multiple controls. I tried putting the controls inside a Panel and GroupBox, but it only works when the mouse is in the "white space" area of the Panel/GroupBox, and, of course, does not work when the mouse is on a control within the Panel/GroupBox.
I'm from the web dev world so I'm open to suggestions for a new approach if I'm going about this the wrong way.
In standart windows developmern (WindowsForms) tootltip or tooltip control is associated to a single control. But you can use ToolTip control (see example how: ToolTip: Windows Forms .NET) and assign to all controls that recieve mouseover event.
If you're in WPF, the story becomes easier as you have message routing so usually it's enought to have subscription in one place.
Hope this helps.
I have button it possible create animate on click?
with photoshop i have created a two image (enabled and disabled). Insert the picturebox in Windows Forms and Click event..Click the image changes from enabled to disabled, but you can have an animation?
Like this:
It looks like you mentioned WinForms so I'll address that. Yes animation is possible but in general it's going to be a bit of work.
There appears to be an implementation of a general purpose animation framework (although limited) over on CodeProject. In the comments schallos posted a better implementation of the reflection code using expression trees.
The general principle is:
Use a PictureBox so you get double buffering
Use a timer control to control repainting (calling Invalidate() on your PictureBox)
You'll probably want to add some easing into the animation so it appears smoother; a bit of acceleration added to it when the user clicks goes a long way.
A timer is not required using a GIF.
Using windows forms you could start by creating an animated GIF for each button. It would have to include both the forward and backwards direction. You can do this through Photoshop via the "Animation" panel. On the PictureBox click event you can set the image to play or stop.
The code below would set your image on the beginning frame.
imgButtonDimension = new FrameDimension(imgButtonDimension.FrameDimensionsList[0]);
imgButton.SelectActiveFrame(imgButtonDimension, 0);
pictureBox.Image = imgButton;`
If this is the approach you'd like to take I can provide further elaboration.
I just wasted my entire evening on something which I thought would be very simple but it seems WPF and Google are letting me down completely.
I need a grid, 6x6 of which I fill every row and column with a custom control. I want to be able to navigate through this grid via the keyboard (I can get those events, no problem) but I cannot seem to find how I can always have the selected grid row/column in the center of my window.
I found some carousel alike implementations, but most of them only work in a single direction and I want two way navigation, yet none seem to support this nor can I extend them to do this.
I essentially want to create a PSP alike grid navigation.
One easy way is to do this:
Create a scrollable form.
Add a 6x6 grid of child controls.
In the GotFocus (or similar) event for all the controls, set the parent form scroll offset to an appropriate position to centre the child.
This is pretty straight-forward thing to implement, with a little bit of maths to work out how to centre the x,y position of a control by setting the scroll offsets (it can be tricky/confusing, but as long as you understand the coordinate systems used for scrolling, not too bad)
Or, another approach that avoids scrolling via the windows APIs and using custom controls:
Create a form
Override OnPaint to draw your grid of 6x6 "controls" as simple graphical shapes or bitmap images centred on the selected "control".
Handle keyboard (KeyDown/Up) and mouse handling (MouseDown/Up) events to make the 36 areas of the graphic respond to user inputs in the way you desire. You'll have to track the selected item and force the window to redraw its graphics to show the new state. Enable double buffering to stop it flickering.
The first approach gives you a lot of windows-based handling for free (tabbing between controls, remembering where the input focus is, and directing events to separate classes for each "control", for example). The second approach strips away all this "help" but gives you complete control over everything, which can often help avoid unintended behaviours (e.g. it won't move the input focus when the user presses Tab unless you specifically write the code to make it do that).
I have a Windows Mobile project built in C#.
I have a lot of ready made forms having various controls on it, from Listviews to Editfields.
When user changes orientation some elements are not refreshing correctly. For example the Listview's columns are same and doesn't accommodate the new screen width change (scrollbars appear or half of the screen is filled).
How do you handle these changes?
Do I need to call for each form these fixes by hand, or I can create some kind of global way to fix this? I would like to go with the simplest method if possible.
I would like to avoid the classic way, to add code to all of my forms. So I am looking for better ways, and I would like to see more ideas.
I'm assuming that most of your controls are using a DockStyle, and that will get you 90% of the way in terms of updating the GUI on orientation changes. For the ListView, you'll have to add in some code.
You can add an event handler on Form.Resize, and there put in code to resize the ListView columns. You can tell portrait vs landscape by comparing width vs height. There's also a way to add an event handler on an actual orientation change, but it's interop and I don't remember the code offhand. Form.Resize should be sufficient for most cases.
You can check out an example here