wpf

Problem with finding the next word in RichTextBox

As I enter a character in my RichTextBox, I want to get the next character from the its TextRange. So here is how I do it: TextPointer ptr1= RichTextBox.CaretPosition; char nextChar = GetNextChar(); //we continue until there is a character while (char.IsWhiteSpace(nextChar)) { ptr1= ptr1.GetNextInsertionPosition(LogicalDirection.Fo...

Is there a way to capture a bitmap from a WPF window using native C++?

Imagine a document window in a MDI application which contains a child WPF window, say a sidebar for example. How can one get a bitmap containing both the WPF pixels AND the GDI (non-wpf) pixels? I've discovered that when making my thumbnail preview for the Win7 taskbar app icon hover, I get black in the parts of the preview where the WP...

EntityFramework EntityState and databinding along with INotifyPropertyChanged

Hello, all! I have a WPF view that displays a Shipment entity. I have a textblock that contains an asterisk which will alert a user that the record is changed but unsaved. I originally hoped to bind the visibility of this (with converter) to the Shipment.EntityState property. If value = EntityState.Modified Then Return Visibility...

Scale transform in xaml (in a controltemplate) on a button to perform a "zoom"

Hi all, I've got a button with an image in it and it's being styled by the following: <ControlTemplate x:Key="IconButton" TargetType="Button"> <Border> <ContentPresenter Height="80" Width="80" /> </Border> <ControlTemplate.Triggers> <EventTrigger RoutedEvent="Button.Cl...

How do I change the WPF Expander Header Text when expanded or collapsed?

Using a WPF expander, I want the Header to change from See More to See Less when the control is expanded, and back to See More when it's collapsed again. I'd prefer a WPF pure solution, rather than a C# or other code behind method. I get the feeling this should be easy, but I'm struggling for the right terms to get a solution via google....

Implementing commands in MMVM

I am trying to change the source property of the frame in Page1.xaml when the SampleCommand is excecuted. How do I acheive this in the View Model? Page1.xaml: <Page ...> <DockPanel> <r:ribbon> <r:RibbonTab Label="Keys"> <r:RibbonTab.Groups> <r:RibbonGroup GroupSizeDefinitions="{StaticRes...

Using Unit of Work design pattern / NHibernate Sessions in an MVVM WPF

I think I am stuck in the paralysis of analysis. Please help! I currently have a project that Uses NHibernate on SQLite Implements Repository and Unit of Work pattern: http://blogs.hibernatingrhinos.com/nhibernate/archive/2008/04/10/nhibernate-and-the-unit-of-work-pattern.aspx MVVM strategy in a WPF app Unit of Work implementation i...

Rendering EMF/WMF images in WPF XAML

how to display EMF/WMF image on WPF window. ...

Remove Specific Type of Children from Grid Control

I wan to remove suppose control whose type is of border, from the grid control. how can I achieve it in WPF C# ? Sorry Guys, My problem is that I have grid control which has GUI design at XAML end and user control which are added using C# and the some control are overlapped.some controls are removed but some are left wich are come one a...

WPF Animation / Processing priority

Hi all, I have a button which has an animation (in xaml) on it's click event. Cool so far. Problem is that I also have processing occurring on the click event (so I can do stuff) - and this occurs first. How do I prioritise or re-order so that the animation takes place before any custom processing... Thanks. ...

Wpf combobox selection change breaks Datatrigger

Hi, I am trying to set the selected value of a combobox from a style trigger.It works as long as we dont manually change any value in the combobox.But it stops working altogether after manually changing the selection.How can i solve this.A sample code is attached.Please do help <Window x:Class="InputGesture.Window2" xmlns="http://s...

WPF ComboBox drop-down (data bound) values not changing

I bind the ItemsSource of a ComboBox to an ObservableCollection<MyClass>. In code I change the collection (e.g. edit the MyClass.Name property). The problem: the change is not reflected in the dropdown box if the ComboBox, yet when I seled the item from the dropdown it is displayed correctly in the selected item box of the ComboBox. Wh...

icons for WPF application

It's recommended to use vector images in WPF application because of its scalability. Where I can find a free icons in vector format? ...

WPF Application doesn't work on some machines: Stopped working error

My WPF application works fine on a number of machines, but now I get a report about this error on a user machine: Description: Stopped working Problem signature: Problem Event Name: CLR20r3 Problem Signature 01: mysoftware.exe Problem Signature 02: 1.0.0.1 Problem Signature 03: 4bbcd9d9 Problem Signature 04: ...

Interpreting WPF Dependency properties as a set.

So, I have a control. It displays an image based some xml document and an optional parameter "Document" - XML document "RenderingOption" - optional image-rendering ( sharpen, soften ) So: <XMLRenderingWidget Document="xxxxxx"/> The above will render the document once <XMLRenderingWidget Document="xxxxxx" RenderingOption="Sharpe...

What's a good xmlns alias for the WpfApplication1.Properties namespace?

I know I can call it whatever, but just like there is a convention for project's namespace (xmlns:local), is there a good name I could call the Properties namespace so that any coder could walk up to my code and instantly recognize it? Currently, I use xmlns:Properties, but that's too long in my opinion. ...

WPF - How to bind a DataGridTemplateColumn

Hi, I am trying to get the name of the property associated with a particular DataGridColumn, so that I can then do some stuff based on that. This function is called when the user clicks context menu item on the column's header... This is fine for the out-of-the-box ready-rolled column types like DataGridTextColumn, since they are boun...

Best approch for creating Base control

Hi, I am looking for a solution for this scenario - I need to implement a feature to allow user to add various controls to canvas(WPF, custom and third party ) and then select any one of them and modify some properties in property grid(changes needs to be reflected in UI). I don't want to expose all the properties of any control only ...

scale animation for wpf popup

I have a nice little popup, when it shows, I d'like it to growth from 0 to 1x scaley, but I don't get it right, when I click multiple times, it looks like i "catch" the animation at various states during the "growth". <Window.Triggers> <EventTrigger RoutedEvent="FrameworkElement.MouseRightButtonDown" > <E...

WPF Animation on scrollviewer children clipped by scrollviewer

Hey folks, I'm hoping I have a fairly simple problem that can be fixed easily as it seems like I'm just missing something basic from the WPF world. I have a scrollviewer wrapping a stackpanel which contains several images, these images have animations to increasing in size when the mouse passes over them. All works fine without the scrol...