custom-controls

Note: I am not having problem with controls inside User Control like other similar articles on StackOverflow, I am having with a Property of the User Control itself. I am making a Custom Control based on Canvas, with a Dependency Property (using propdb template): public sealed partial class PresentationViewer : Canvas { #region Properties public ISlide PresentationSlide { get { Debug.WriteLine("Get PresentationSlide"); return (ISlide)GetValue(PresentationSlideProperty); } set { Debug.WriteLine("Set PresentationSlide"); SetValue(PresentationSlideProperty, value); this.ShowSlideContent(); } } //

Trying to create a custom cyclical horizontal manager which will work as follows. It will control several field buttons where the buttons will always be positioned so that the focused button will be in the middle of the screen. As it is a cyclical manager once the focus moves to the right or left button, it will move to the center of the screen and all the buttons will move accordingly (and the last button will become the first to give it an cyclic and endless list feeling) Any idea how to address this? I tried doing this by implementing a custom manager which aligns the buttons according to

I created a custom line with some text next to it. The shape is a subclass of System.Windows.Shapes.Shape . For some reason the text does not refresh when I change the coordinates for the line. I know about the InvalidateVisual() approach, but then every time I move elements around I would have to call it to redraw the shape. I am sure there is a better way of doing it. What am I doing wrong? ATM I am out of ideas. public class MyShape : Shape { LineGeometry line; FormattedText text; public MyShape() { line = new LineGeometry(); text = new FormattedText( Edge.Length.ToString(), Thread

I created a custom canvas control inheriting from WPF Canvas . I am using it like this in main window - <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto"> <RTD:RTDesignerCanvas Margin="5" Background="White" x:Name="canvas1" Focusable="True" AllowDrop="True"> </RTD:RTDesignerCanvas> </ScrollViewer> Everything works fine but when I try to set the position of controls inside it like this Canvas.SetTop(item, 200); scrollbars are not visible and control is hidden down somewhere. Interestingly, if I add another control to it scroll bars are visible and I can

I've created a combo box control with a edittext and spinner. I'm trying to let the android:prompt attribute be passed onto the spinner, which means I need to catch it in the constructor which passes my the AttributeSet and set it on the spinner. I can't figure out how to get the value of the prompt. I'm trying, int[] ra = { android.R.attr.prompt }; TypedArray ta = context.getTheme().obtainStyledAttributes(ra); int id = ta.getResourceId(0, 0); I get back 0, which means it didn't find the attribute. I also did a ta.count() which returned 0. So I'm not getting anything back. My XML simply

I want to customize the SeekBar as shown below in the image. I'm a beginner in programming and I looked for tutorials, but every where the progress starts in the leftmost corner. Can someone please guide me how can I customize the SeekBar. So In onProgresschanged. @Override public void onProgressChanged(SeekBar seekBar,int progress, boolean fromUser) { brightness = progress; putGestureImageOnScreen(doBrightness(imageBitmap, brightness)); } Thanks. Seekbars in Android cannot have negative values. Assuming you have specified a value of '100' for your maximum range of the progress bar (for