Suppose I want to show list of objects where each object should have a name and a suitable image (for example MenuItems with Icons, or buttons with text and image). All examples and programs exposed the image in the viewmodel as a path to a PNG file and then bound the Source of an Image to that. But what if I want to use vector images (...
Hello, I'm trying to create a Observable Dictionary Class for WPF DataBinding in C#. I found a nice example from Andy here: http://stackoverflow.com/questions/800130/two-way-data-binding-with-a-dictionary-in-wpf/800217 According to that, I tried to change the code to following: class ObservableDictionary : ViewModelBase { public O...
I just completed a "dialogue-box solution" for my WPF/MVVM application in which the ViewModel changes its ViewModel properities, and the View uses triggers to accordingly display and hide the dialogue box, etc. From a UX experience it is satisfactory. However, the "dialogue box" that I use is a Border element which gets its Visibility p...
I'm reading data from a serial port using an event listener from the SerialPort class. In my event handler, I need to update many (30-40) controls in my window with xml data coming over the serial port. I know that I must use myControl.Dispatcher.Invoke() to update it since it's on a different thread, but is there a way to update lots ...
How do I display a wpf window in my application when the application resides in a dll, not an exe? This project will be compiled to a dll and loaded into another application as an add-in. In WinForms, I would just have the following code: dim frmUserData as frmDataEntry = new frmDataEntry frmUserData.ShowDialog() How do I accomplish ...
I'm working on a custom panel control and one of the things I'm trying to have it do is swap it's content at run-time. There's two states to this control: Maximized and Normal. When the user clicks a button on the control the state switches. There's two properties on this control: MaximizedContent and MinimizedContent. When the button to...
Is there a way for a parent MenuItem to be notified when a child MenuItem is pressed. For example, I you have <MenuItem Name='a'> <MenuItem Name='b' Header='...'/> </MenuItem> how can I add an event handler to a to be notified when b is clicked. Ideally, the Click event would be either a tunnel or bubble event but this is not the ...
Hello everyone. I have some 5+ years' background in C++/Unix development. I have been trying my hand at C#/.Net/WPF based software development for some time now. I am at a stage where I can write functioning applications fluently, but am not sure how to take my skills to the next level. So, my question(s) to you all, especially to thos...
Is there a way to convert HTML into XAML? I noticed that you can paste HTML into a RichTextBox and you can get the XAML by looking at the FlowDocument. However, this is a hack. Is there a better way? ...
I have a canvas with a scale translation applied in XAML. Using DrawingContext I draw lines on the canvas. I now need to add text to the screen. I thought with formatted text I could apply a translation, but neither Formatted Text or DrawingContext accepts RenderTransform. How do I apply a scale translation to the text so it will coun...
I am trying to use the MVVM model to create a test application. I have Customers and Orders. Now, I want to display Customers list and when the user click on the customer it should display the Order. It works perfectly when I use the following code: <StackPanel DataContext="{Binding Path=Customers}"> <ListBox IsSynchroni...
How do you go about dividing the views into smaller views. Let's say I have Customer object and each Customer can have Orders. Should I create a single view "CustomerOrderView" or should I create 3 views "CustomerOrderView", "CustomerView", "OrderView"? ...
Is there any way to make a DataTemplate reference itself just from XAML? In this particular case trying to reference a DataTemplate from a ListBox contained within the same DataTemplate. Here is the solution I'd like, which doesn't work. <DataTemplate x:Key="nestedItem" DataType="{x:Type local:NestedItem}"> <Expander Header="{Bind...
This should be pretty easy, but it throws VS2008 for a serious loop. I'm trying out WPF with MVVM, and am a total newbie at it although I've been developing for about 15 years, and have a comp. sci. degree. At the current client, I am required to use VB.Net. I have renamed my own variables and removed some distractions in the code b...
I have been using WPF for a few years now and don't have any experience with anything but managed code. I started writing an app that uses a lot of win32 interop and i started wondering if i was leaking memory or generally doing something stupid that i didn't know about... So i thought i would seek some advice! Is there any gotchas/tips...
I would like to create a simple control that inherits from HeaderedContentControl, and has some basic dependency properties called Title, Subtitle, Icon. I would like to be able to provide a default header template that databinds these properties. For this example, I have named this class HeaderedView. I am having trouble in providing a...
I have read the MSDN article on MVVM and I am not really convinced. If the model already implements INotifyPropertyChanged/INotifyCollectionChanged, what's wrong with the View binding directly against the Model? It seems the extra ModelView introduces some code without much benefit. Am I missing something? ...
Here is the code that cause me problem since few hours: TabItem newTab = new TabItem(); newTab.Header = source.Name; newTab.Content = source.GetGui(); newTab.HorizontalContentAlignment = HorizontalAlignment.Stretch; newTab.VerticalContentAlignment = VerticalAlignment.Stretch; this.inputSou...
I have a MediaElement in WPF playing a WMV, that I'm rewinding 4 seconds (and I've also tried 4000 Milliseconds with same result). I want to simply loop the last 4 seconds of the video, so i'm .... protected override void videoBase_MediaEnded(object sender, RoutedEventArgs e) { //would reset to zero (replay) //base.MediaDisplayC...
I'm having the following problem using the Visual Studio 2010 Team System Beta 1: While working on some printing code, I tried to declare a variable of type System.Printing.PrintTicket, but Visual Studio doesn't seem to recognize that the class exists. It appears in the MSDN documentation, and other classes like System.Printing.PrintQue...