I'm using the CellToolTipTextNeeded event of a DataGridView, and the tooltip is being shown under the mouse. I can get the ToolTip object out via reflection, but I don't have any control over where it's positioned since I'm not the one calling Show(). How do I move a tooltip?
How about a custom one?
I think the short answer is: you can't, not yet anyway. I would probably think about building a custom one like 'unknown (yahoo)' suggested.
You'll have to control the tooltip yourself using the Show and Hide methods if you want any control over how and where it is positioned using the 2.0 framework unless you want to get into Window's API calls.
Unfortunately, it looks like the tooltip position is set very, very early on in its creation. The tooltip only has 3 events to handle, and we aren't very interested in Dispose in this case.
The Draw event is fired after the Popup event and it seems as if the position has already been set as the Bounds property in the PopupEventArgs is readonly.
Here's a link to one of many articles (at the time of this post) on creating a custom control:
http://andrusdevelopment.blogspot.com/2007/10/implementing-custom-tooltip-in-c.html
And the MSDN documentation on using the tooltip's Show and Hide methods is actually fairly decent:
http://msdn.microsoft.com/en-us/library/44atyhsa(VS.80,printer).aspx
Sorry, but it just doesn't look like there is a quick and easy answer to this one. Hopefully someone will prove me wrong for both are sakes.
Scott
There is a good answer at this link that uses a Tooltip object.
How to override default tooltip behavior of a C# datagridview to increase the tooltip delay for particular cells
Related
I'm working on an UWP application and I have buttons on it. I added a simply ToolTipService:
But when I hover the mouse on the button, the tooltip takes almost 2 seconds for being show, and I'd like this to be instant. I looked for solutions, but all I find is about WPF and these solutions DON'T WORK. For example:
Change the ToolTip InitialShowDelay Property Globally
This doesn't work,
Than You!
ToolTip Class:
It can´t be done the way I proposed, so as #MoDu mentioned, the best way is to show/hide a control handling onPointerEntered() event
I have 3 textboxes that will change while it's being typed on a 4th one. I have tried the TextChanged="function" and change the content of the other three, but by chaging the .Text property, the event TextChanged is triggered again providing an undesired result. I was thinking of checking which textbox has the focus at the time, but I have no idea on how to implement that. I am experienced with Java and I'm very frustrated with all this c# and XAML. Thank you in advance.
If you search for FocusManager then you will find two kind of FocusManager class. But you have to go for
Windows.UI.Xaml.Input.FocusManager
not
System.Windows.Input.FocusManager.
It has static method GetFocusedElement() which queries the focus system to determine which object in the UI has focus.
There is a FocusManager-class, which might help you. Use the textbox' parent as scope-element.
When I drag and drop a ToolTip object on my form in C#, every control on the form gets a new property called ToolTip which didn't exist before. I'm trying to create something just like ToolTip so that when I drag and drop it onto my form all of the controls will automatically get its new property.
I would also be grateful if anyone could give me a definition for this so that I can edit my question to convey my intention and meaning better.
What you are looking for is an "Extender Provider". Very simply, you don't actually add the new property to the controls' grids. You instead implement an interface that the VS designer looks for, that tells VS how to "transform" the property set in the grid to a call to the Extender Provider to really do the trick.
In addition to ToolTips, LayoutPanels like TableLayoutPanel and FlowLayoutPanel do similar things, as well as certain other "meta-window components".
ToolTip is an Extender Provider. The full documentation for implementing it is here, with a full example here.
ToolTip would likely be implemented like this:
[ProvideProperty("ToolTip", typeof(IComponent))]
class ToolTip : IExtenderProvider {...}
I want to create a custom tooltip, with a different style so that when I click on a control (for example a label or a user-control) it appears.
Something similar to what Google does in Google Maps for coordinates.
I tried to create a user-control and show it when user clicked on a label, but it didn't work well.
It is WinForms!
I attached a picture of what I want. Thank you in advance!
Use a standard ToolTip but override the painting method so it can appear as you want it, while still behaving like a normal tool tip.
Haven't done this before so I can't provide an example.
EDIT: here is an example: http://cboard.cprogramming.com/csharp-programming/119414-custom-tooltip.html
I'm using ObjectListView and I'm trying to wrap the text in a column.
I have 2 columns and have set the WordWrap property of the second column to true. It doesn't appear to work.
In the image below the last line should wrap
I have searched SO and tried all the suggestions including setting OwnerDraw to true but nothing helps.
Any ideas?
"Owner draw" means: I (the control) will not draw anything, I will assume that you (the control consumer) will do it all for me.
That is a general statement, I know nothing of this specific control. It seems to me that the WordWrap feature is not implemented. So you either have to implement the feature in the control itself or use OwnerDraw which means doing it all yourself.
Updated
By the way, I encounter this need myself quite often. I don't bother with ListView or 3rd party controls, I simply use a DataGridView and make it look and behave like a ListView. It can do wrapping text columns.
According to this answer, your ObjectListView must be "OwnerDrawn".