I have just found this page indicating the support for Silverlight mouse cursors:
http://msdn.microsoft.com/en-us/library/system.windows.input.cursor(VS.95).aspx
Is that it!!! :-| what are they thinking, at least there is stylish looking Eraser!
Is there aany other way to use custom cursors? How efficient/usable would it be to hide the cursor and show a png instead?
Related
How does the user change the columns in a XamDataGrid such that it sets the ColumnSpan and/or RowSpan properties? I know how to do this programatically, but I can't seem to figure out how to do it via the keyboard and mouse at runtime. Are there any options I need to set on the grid in order for this to work?
By default this isn't supported in the XamDataGrid. Doing this programmatically is the only way to achieve this so if you have some mechanism in place to change these programmatically during runtime then you can do it but it's something you'll need to write yourself.
This does sound like a very useful feature though so you should head on over to the Infragistics site and submit a feature request for this.
https://www.infragistics.com/my-account/feature-request/
Is there a free implementation of the text box in Blend's property grid that allows you to change the number by clicking and dragging? Or perhaps another way to ask is what kind of control called so I can google it?
just try this
http://www.codeproject.com/KB/WPF/MicrosoftBlendStyleTextBo.aspx
It's called a numeric UpDown control. (Terrible name, I know).
MS has a sample implementation for WPF, although I think you'll have to provide the draggable part yourself.
I need to create some mini-windows, like the ones shown in the image bellow, in my winform main form.
It would be nice if they could be draggable, resizable, and, mainly, closable.
How can I approach this design? Has anybody already seen some control (with code available) implementing something similar?
alt text http://img716.imageshack.us/img716/5765/imagea.png
A normal Form works fine for this. Set its FormBorderStyle to either FixedToolWindow or SizableToolWindow as desired.
If you want to keep your floating windows inside your main window, use MDI (Multiple Document Interface). Here is a tutorial (Google can find you many more).
Have you tried just setting the FormBorderStyle property to SizeableToolWindow?
Is that what you're after?
You can create them as resizable and draggable custom controls.
You could use my example at:
http://hourlyapps.blogspot.com/2008/07/resizable-and-movable-controls-c-net.html
i would like to create a simple winforms or wpf application where i can drag and drop virtual "cards". this below is not exactly what i want to do, but it the closest thing that i found on the web to represent the user interface.
http://www.greenpeppersoftware.com/confluence/plugins/advanced/gallery-slideshow.action?imageNumber=1&pageId=24870977&decorator=popup&galleryTitle=Task+board+and+transitions
so basically i want to have columns in the GUI where i can drag and drag from one to the other.
My questions are:
would this be easier in winforms or wpf
where do i start?
In both winForms and WPF dragging and dropping can be done in a similar way by working with the events on the target DragOver and Drop.
However with WPF you have other options. You will also be able to make the application look better by having a thumbnail as you drag (this is possible in winforms but harder to achieve).
Have a look at this WPF sample it uses a helper class and think it does exactly what you need.
I agree with John in that WinForms and WPF are quite close to one another w.r.t. drag'n'drop. But WPF offers more of a "common base" for ItemsControl, allowing to implement more independent of the final UI elements used (ListBox, ListView, TreeView... can be easily switched). And obviously WPF allows much more fancy effects.
I would strongly recommend this blog post:
http://www.beacosta.com/blog/?p=53
both for some drag'n'drop basics and for a clean WPF drag'n'drop approach.
It shows a nice implementation of a rather generic helper for drag'n'drop from/to WPF ItemsControls, I really like that "Insertion Adorner". And I do like that the drag'n'drop code is nicely separated from the user control itself by using attached properties, which makes it much easier to use and maintain.
It would probably be slightly easier in WPF because of the Thumb control which provides easy to use built-in support for dragging. (If I remember correctly, in WinForms you would need to handle the mouse events yourself, whereas the WPF Thumb does this for you and translates them into drag start, delta and end events.)
However if you are much more familiar with one framework than the other than that would probably dwarf the difference that the Thumb control would make.
You should also have a look around for toolkits/frameworks that could handle this for you -- I think they exist for both WinForms and WPF (not sure though).
A good way for darg and drop are explained as
Detect a drag as a combinatination of MouseMove and MouseLeftButtonDown
Find the data you want to drag and create a DataObject that contains the format, the data and the allowed effects.
Initiate the dragging by calling DoDragDrop()
Set the AllowDrop property to True on the elements you want to allow dropping.
Register a handler to the DragEnter event to detect a dragging over the drop location. Check the format and the data by calling GetDataPresent() on the event args. If the data can be dropped, set the Effect property on the event args to display the appropriate mouse cursor.
When the user releases the mouse button the DragDrop event is called. Get the data by calling the GetData() method on the Data object provided in the event args.
You can find the complete article here
How would you render a tag cloud within a .NET 2.0+ WinForm application?
One solution that I am thinking of would be using the WebBrowser control and generating to some ad-hoc HTML, but that seems to be a pretty heavy solution.
Am I missing something more simple?
How about creating a user control that implements the Flow layout control? You could have a method for "Add(string tagName)" that would create a link label on the fly and add it to the Flow Layout control. The Flow Layout works just like the web, in that controls added to it are put in the order of creation.
Then you only have to add some logic to resize the Link Label based on hit count for that tag.
Well, you'll want a control with these major features:
Automatic layout of variable sized string snippets
Automatic mouse hit testing
Those are a bit hard to come by in WF controls. A RichTextBox with ReadOnly = true gives you the automatic layout, but not the hit testing. A ListBox with DrawItem can give you variable sized strings and hit testing, but not a natural layout.
I think I would use RTB and make hit testing work with the MouseDown event and GetCharIndexFromPosition(), reading back the tag at the clicked location. You'll need a bit of logic to find the starting and ending white space around the word.