I am working on a simple text editor that allows the user to hover over words in the text and get information about them. I am looking for a way to control a tooltip that pops up based on my own logic the drives from the MouseMove event. Trying to create a simple popup that acts similar to a code editing window when you are debugging and looking at variable symbol values by hovering the mouse over words in the text.
I am not seeing an obvious way to force the tooltip to show/hide on-demand.
Instead of using the ToolTip property, you could use a Popup element and set its IsOpen property to control when you want to display it.
You can style it to look like a ToolTip.
Related
I would like to build a multiline combobox in WPF. This would be similar to label control wherein the width of control will grow such that entire selected text is visible. The text displayed can go over next line if there is no enough space available on current line.
I tried few things around control template of combobox. But still no success.
Below is sample screenshot of how it should look like!
Any pointers?
Thanks,
Sambhaji
As per my understanding setting the control template for this particular scenario would be a tedious job. I would have created a TextBlock and tried setting the event triggers which will open a container on mouse hover or click event.
I want to show all the ToolTips on a view as soon as it's opened. That's fine, I can set the ToolTip.IsOpen properties to true. That certainly shows the ToolTips, the problem is they all show up at (0, 0). Apparently the positioning of the ToolTips doesn't happen until its target control is hovered. Only after hovering are the ToolTips positioned correctly. Setting focus to all the controls first doesn't help either; the target control has to receive the hover event. I'm assuming the ToolTip hooks into the hover event of its target and positions itself inside this event. Is there a protected method I can call in a ToolTip subclass or some such?
ToolTipService.SetPlacement(button1,
System.Windows.Controls.Primitives.PlacementMode.Top);
See this MSDN Page to see all the placement options
EDIT
See this article about the custom positioning of tooltips. It refers to a project on codeplex that contains the code: SmartToolTips
As far as I can tell what I'm asking here is not possible beyond manually doing layout or customizing the source. I implemented a completely custom tooltip instead. sigh
I want a button that
Displays an image with NO border, NO background, NO text
If I tab into the imagebutton, THEN it shows the background and border
Also if I hover over it, it shows the background and border
I've searched and I've tried so many different things, but nothing it exactly what I want. I've tried setting various properties on the button to make the background and border transparent, but it still shows up. I've tried a style with a custom control template. I'd rather not have to completely reinvent all the triggers etc to get the button to render on mouse over. The biggest problem with custom control template is that then I loose all existing functionality and I'm basically building a new control from the ground up.
Here is another link that came closest to what I wanted but it doesn't properly work for me.
How do you completely remove the button border in wpf? - BUT.... for some reason the hover effect gets stuck. One I mouse over the image and the button border draws, it stays stuck on until I click somewhere else.
Actually, you will want to override the control template. You're not "losing" any functionality (aside from the UI triggers).
Original/Default Template -- This is a good starting point... copy/paste that into you're XAML (wherever you want to style this button... ie Button resources, UserControl/Window resources, App Resources?). From there make your adjustments.
Another easy way is to use Expression Blend. You can easily create a new template based on the existing template, and the styling/authoring tools it provides are much better than hand-coding XAML (unless you're good at doing that).
As far as displaying an image instead of text, just set the image as the content. A Button is a type of ContentControl which means that it can house any type of content (Object).
I want to add the menubar to TextBox control in Silverlight 4. (I will create a new reusable control.) The menubar will consists of a few image buttons. The idea is that it will normally stay hidden and will show up only when the user puts his/her mouse cursor to the TextBox area. If used in a multiline textbox, whole menubar can fit inside it, this should be easy. (I hope. :-))
But how to solve situation when TextBox is in single line mode? I'd like to put the menubar above the TextBox. But I don't have a clue how to do it. Can somebody help? I need to let all other controls in a form to stay in their positions, and only add my menubar above my textbox. (So the menubar will NOT hide the textbox. Instead, it will hide other controls residing right above the textbox.) It should work in all arrangements of form, like Grid, StackPanel, Canvas etc. In the fact it would be similar to a classic right-click context menu, but not modal. (Right-click context menu is modal, i.e. while it is shown you cannot use other controls, and it automatically hides when you click anywhere else. I want my menubar to stay visible as long as user heeps mouse cursor over the textbox or the menubar.)
Example: Coordinates of textbox are top=100,left=20,bottom=115,right=120. So my menubar's coordinates should be bottom=100,left=20, right & top are based on size of menubar.
If many textboxes will be used on a single page, each single one should have its own menubar. (Of course.)
You can create your own control (custom control or UserControl, whichever you like should work) which has the TextBox, and the visual for the menu bar.
If the TextBox is single-line, you could display the menu bar in a Popup which you position just above the TextBox whenever the mouse is over it.
If the TextBox is multi-line, you'd simply use a StackPanel or Grid or whatever to do layout like normal, if I am understanding what you want.
No coding required if you use this menu:
http://sl4popupmenu.codeplex.com
To achieve this behavior you will need to set its IsPinned property to true.
I'm trying to create a custom UserControl that will mimic auto-complete as it works within Intellisense using WPF. I'm using a TextBox and a Popup containing a ListBox within my control.
I want to be able to keep keyboard focus set on the TextBox irrespective of whether or not the auto-completion popup is open so that a user can continue typing whilst simultaneously using up/down controls or the mouse to select elements in the popup to autocomplete the text. Is there any way this can be done in WPF?
Check out my article on CodeProject, it addresses the issue of the popup specifically.
A Reusable WPF Autocomplete TextBox