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• VisualStateManager for WPF and Silverlight

  - by Allen Ho

  When you do code like VisualStates.GoToState(this, useTransitions, VisualStates.StateNormal); I believe this code will only work for Silverlight apps. will this affect the way a WPF app works... Trying to incorportae controls that can be shared between both silverlight and WPF apps and was just wondering what were the main pitfalls were...

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• One-Click Application Moving from WinForms to WPF

  - by Tyler

  I have a WinForms app that I recently re-wrote in WPF and I need to release to my end users. I'd like to be able to have the users go to the ClickOnce install point for the WPF application and have their WinForm application removed so they don't have both on their machine What's the best way (read: easiest for users) of accomplishing this? I have thought about creating an prereq command line app to detect the old version and uninstall, but would like to avoid having to write an something like that where it only get's run once.

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• Wpf usercontrol with parameterised constructor

  - by Miral

  Hi, We are using Microsoft Unity and we are using dependency injection and so we have parametrised constructor. So now how to call such a usercontrol in the main window. I see the below error when i added the usercontrol in xaml. "It does not define a public parameterless constructor or a type converter" I have added the usercontrol in XAML as below xmlns:usrRefundArrivalProcessor="Ttl.Refunds.Wpf.Dashboad.Application.Usercontrols;assembly=Ttl.Refunds.Wpf.Dashboad.Application"

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• WPF image zooming

  - by anwar

  WPF: What is the best way to implement Zoom In and Zoom Out option for an Image inside ScrollViewer in WPF at runtime and also other alternative methods for the same Please provide sample code and suggest links where I can find sample code and more info about various ways to Zoom the image. Regards, Anwar

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• WPF PropertyGrid - adding support for collections

  - by akjoshi

  Hi, I am working on wpf propertygrid(PG) control and I want the PG to support collection type(IList, ObservableCollection etc.) properties. I am bit confused on how to keep track of selected item(of that collection) and pass that to client. Any ideas? If the solution makes use of the Open Source WPF PropertyGrid (http://www.codeplex.com/wpg) I will implement the changes /additions back into the control.

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• Customly chromed Windows in wpf

  - by Alxandr

  I've tried creating a customly chromed window in wpf using WindowStyle None, and AllowsTransparency True, however, when I maximize the window it covers the entire screen (and goes beond it's edges, it also hides the Windows-bar at the bottom of my screen, just like a game in fullscreen). How can I make the behaviour like a normal window, but with my own customly made wpf-chrome?

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• Visual Studio 2008: Setting the vertical separation to default in wpf designer

  - by Nils

  I favour the vertical separation over the horizontal separation in VS2008 wpf designer. But after deleting the .suo (fresh checkout, new project, etc.) this setting is gone. Is there a way to tell visual studio to default to the vertical separation instead of the horizontal for wpf designer ? I can not find anything in the "options". Did I miss this setting?

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• Play RTSP/MMS/Http live video feeds in WPF

  - by James Cadd

  I'd like to pull a live video feed into WPF but the MediaElement doesn't appear to support these protocols. An example video stream is here (BP oil leak live feed): http://mfile.akamai.com/97892/live/reflector:45683.asx?bkup=45684 Are there any solutions for playing live streaming formats in WPF?

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• WPF Bind User Control Coordinates

  - by morsanu

  Another beginner WPF question from me :) Ok, so I have a User Control added to a Canvas. In another area of the application I have two TextBoxes that will get 2 values : X and Y. I need a two-way binding between the user control's top left corner coordinates and those 2 textboxes. I don't mind implementing a Converter or doing some calculations, but I need a push in the right direction from a more experienced WPF developer.

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• WPF - Sample App, Step by Step

  - by Randy Minder

  I'm new to WPF development. Is anyone aware of a site or resource that builds a somewhat simple WPF application step by step, with ample explanation and/or documentation?

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• What did you find hardest to understand when learning WPF

  - by Ian Ringrose

  What bit of WPF did you find hardest to understand or misunderstood for longest and how did you understand it in the end (please provide links etc). (I am asking this to guide my learning of WPF)

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• WPF Hide on Close?

  - by Petoj

  How do i do this in wpf VB.NET Private Sub FrmSettings_FormClosing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing e.Cancel = (e.CloseReason = Forms.CloseReason.UserClosing) Me.Hide() End Sub c# private void FrmSettings_FormClosing(object sender, System.Windows.Forms.FormClosingEventArgs e) { e.Cancel = (e.CloseReason == Forms.CloseReason.UserClosing); this.Hide(); } as wpf's Close event just gives me e.Cancel and no closereason :(

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• Column aligment in WPF datagrid

  - by Prashant

  Hi all, I'm using WPF datagrid which is bundled in WPF toolkit... the problem is I'm not able to align some column data to center Please help me guys

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• Button in a WPF ListItem

  - by Joel Martinez

  Hi, I'm a bit new to WPF. I am working on a list UI where each item in the list will have a set of corresponding buttons to operate on that particular data item. Coming from a web background, I normally would have bound the value into a hidden element in that particular list item or something. However, I just need to find the corresponding technique in this WPF world :-)

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• WPF: Is there a built-in TreeGrid / TreeListView?

  - by John Gietzen

  I need something just like this: But, I need it in WPF. is this something that is built in, or am I going to have to build it myself? I assume it has to be somewhere in the framework, since VS2010 is build in WPF.

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• some troubles with WPF and Windows XP

  - by Sorush Rabiee

  is .net framework 3 compatible with xp? i install visual studio 9.0 (.net 3.5) on win XP. when i compile a WPF project and try to run it, this error occurs: cannot initialize application ...... at address 0x<some digits> (antivirus protection is off) after first fail of wpf, all other project types (windows application, console &...) after compiling don't run. where is problem?

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• Image Resize Aliasing in WPF v4 but not under v3.5

  - by McKAMEY

  I am using WPF for an image resizing pipeline which has been working beautifully under .NET v3.5. I just upgraded the project to target v4.0 and now all of my resized images are heavily aliased. None of the image pipeline code has changed. Has a default setting changed between v3.5 and v4.0? How do I control the dithering of my resized bitmap images in WPF?

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• How do I conditionally format a WPF TextBlock?

  - by Scott Ferguson

  I have a WPF TextBlock bound to a string. If that string is empty, I want the TextBlock to display a warning message in another colour. This is easy to do in code, I was wondering if there was a elegant WPF pure XAML solution for it? I have investigated Style Triggers, but the syntax doesn't come naturally to me. Thanks!

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• How popular is WPF as a technology?

  - by Vaibhav

  I had a discussion with some colleagues mentioning that there are not too many projects that we do which make use of WPF for creating UI for a windows application (we almost always use Windows Forms instead). Are your experiences the same - i.e. there is not too much adoption of this technology? Why do you think that is? And will we have a time when we see much more of WPF?

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• WPF Open Word Document without open dialog

  - by Mitch

  I have the path to a Word document saved in an SQL Database. I am able to retrieve the path but I cannot work out the best approach to open the Word document from WPF without using the OpenFileDialog. I've given up any thoughts of embedding Word in WPF as it has too many gotchas. I just want to be able to click a button or hyperlink and using the retrieved document path, open Word.

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• WPF: ComboBox Max Items?

  - by Jonathan Allen

  What is the maximum number of items you can put in a WPF ComboBox before it starts suffering serious performance degration? (Assume bare-bones XP business-class computer.) What is the maximum number of items you can put in a WPF ComboBox before a typical user will start complaining?

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• Best reporting engine for WPF without a database?

  - by Cameron MacFarland

  Does anyone know of a Reporting Engine for WPF? Most of the ones I could find are still for WinForms. I'm happy enough using a WinForms one in WPF with a WinForms host so long as the tool has a UserControl that can be embedded in a window. Also, I'm not using a database and all my data is in XML so the Reporting Engine needs to be able to handle that. Any suggestions?

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• how to save a WPF image to a file

  - by tbischel

  in WPF, the System.Windows.Clipboard.getImage() function returns a BitmapSource object. As a newbie in WPF coming from a WinForms background, its not clear to me how to save this image to a file. What are the steps I must take?

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• WPF StringFormat={}{0:N} Error "Expected '"

  - by bkmtan

  I'm getting an error in VS 2008 SP1 with WPF using the stringformat binding, is there an inherent problem with wpf in vs 2008? Error 1 Expected ' ConstituentCrossrateGridControl.xaml 70 141 PriceViewWpfLibrary

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• BeginUpdate equivalent in WPF?

  - by Lith

  My problem is that I need to add a lot of items to a ListBox in WPF. In WinForms you'd just use the BeginUpdate(); method, add everything, and finally use the EndUpdate(); method. So, how would I stop the drawing in a WPF listbox until every item is added and then draw everything in one go?

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