I'm using Devexpress charts for winforms. I'm using the SwiftPlotSeriesView for preformance, but since the hittesting is off for that type I can't get the clicked point on the chart. That's why i whould like to get the text value from the crosshair label so that i know where in my series the user clicked. I nope my explanations is good enough :)
Any help?
After hours of work we concluded that this is not possible in Devexpress SwiftPlotSeries.
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I am looking for a control like the one in Expression Blend and Photoshop, which shows a small triangle and when clicked expands an area with more controls.
I could style/program it myself but perhaps there's an already available control out there.
Any help appreciated !!
See picture:
It's just a ComboBox... with Style.
My aim is to get fine control "animation" when it is mouse-over-ed. For example, I have a "map" of controls (game map that represent different type of terrain), each of them is an image with trees/rocks/hills on the green grass or water (lake or see) image of blue/cyan color. When user point any image with mouse it should get shiny: either get more bright background or get a shiny border.
It is hard to say what exactly I want to have (either background change or border), I would like to try each of them and see what is the most appropriate for me.
I am going to have a custom control (MapTile) that will represent a map tile. I know how to catch MouseEnter/MouseLeave events, but not sure how to change control style and if it is a good idea to work with control style in CodeBehind, probably there are better XAML-based solutions.
Could you please help with a solution that provide few goals:
Goal1: Add highlighted border around the control (it will be squares/rectangles, or circles; use what is easier) on mouse enter, remove border on move leave;
Goal2: Change some properties of my CustomControl (for example, background color).
Thank you very much!
1. How to han
You might find it easiest to get hold of Expression Blend and use it to create a custom template for your control.
The Learn Expression Blend page would be a good place to start. Look for tutorials on customising buttons and this is the same sort of thing that you want to do.
You need to use an attached behavior on your control. You don't need to learn Blend for this.
Check this one as an example, but you can search the site for Mouse Over for other examples.
http://gallery.expression.microsoft.com/en-us/MouseOver3D
Hii
Can anyone tell me how can I show percentage on the piechart....
The percentage is seen on mouseover event but I dont know how to show
the percentage on the piechart's slices....
If you are looking to put labels on the chart itself (instead of tooltip), take a look at this great blog post by WPF guru Bea Stollnitz.
It shows how to do this, in many different modes, and explains not only how, but why.
Take a look at amCharts Bundle for WPF. Pie chart supports labels on the slices, outside connected labels and includes an algorithm to prevent label overlapping.
I've just followed this tutorial (just to make sure) and I get the percentages of each slice as tooltip on mouse over by default.
If you post your code we might be able to spot if there's a problem with it.
You can use labelFunction in mx:PieSeries, and lableFunction look like that
private function pieSeries_labelFunc(item:Object, field:String, index:Number, percentValue:Number):String
{
return StringUtil.substitute("{0} ({1}%)",item.description,percentValue.toFixed(1));
}
Where description is the label that you want to see.
feel free to ask any question.
I want to make a WPF Grid in which users can drag and drop controls from one cell to another and when the user is dragging I need to draw tips on the screen, like arrows. It's as if the tips were in ANOTHER LAYER in the screen. That is, they are not drawn IN the grid I mentioned.
The problem is: I don't know how to OVERLAP a "transparent" canvas over my Grid so that I can draw on it.
Do you experienced guys have some tip? THANKS.
I think what you are looking for are Adorners. You can read something about them here:
http://marlongrech.wordpress.com/2008/02/28/wpf-overlays-or-better-adorner/
Heres an example with a listView control, pretty good.
Heres a tut also decent.
And even a section in msdn
I'm looking for a WPF Gradient Picker example and source code.
The goal is to allow the user of a WPF application to pick the gradient brush to use for a background or foreground. I've seen pickers in Blend (too confusing for a casual user) and Photo Shop. I'm looking for a WPF implementation of something along the line of the Photo Shop picker implemented as a WPF dialog box.
Any pointers to good examples much appreciated.
Thanks.
Found it, this one too on the CodeProject: .Net Protoshop-like gradient picker. Enjoy ;)
Random gradient wallpaper generator. closest thing I could find... unfortunately it only has four possible gradient stops, one in each corner... worth looking at the code perhaps, and getting a few tips...
It seems like something that would be pretty easy to code, in terms of a custom control.
Just have a canvas that you change the background of, with some other controls for changing the colour and the stop points.