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Introduction to D3DImage

by Dr. WPF

.NET 3.5 SP1 is here! It's time to break out your DirectX skills. This article provides the information necessary to get started using a new DirectX interop feature in WPF called D3DImage.

Calcium: A Modular Application Toolset Leveraging PRISM – Part 2

by Daniel Vaughan

Calcium provides much of what one needs to rapidly build a multifaceted and sophisticated modular application. Includes a host of modules and services, and an infrastructure that is ready to use in your next application.

WPF 3D FlipPanel

by Fredrik Bornander

WPF Implementation of the spinning panel frequently used on the iPhone

WPF: If Carlsberg did MVVM Frameworks: Part 6 of n

by Sacha Barber

It would probably be like Cinch, an MVVM framework for WPF.

Latest Articles

WPF: DataGrid Filterable, Multi Language

by Macabies Gilles

An easy-to-use filterable, multilingual custom DataGrid control for managing and filtering data for your WPF applications

OpenGL and WPF: Integrating an OpenGL Window inside a WPF Window

by gabriel4sonic

Shows how to use OpenGL in a .NET WPF application by directly incorporating an OpenGL window as a child of the main WPF window, making it behave more like a control

Part 2 of German Cards Game 'Schafkopf'

by Jo_vb.net

Part 2 of my article about 'Schafkopf' introduces Automated Bidding

ChatGPT API in C# WPF / XAML / MVVM

by Peter Sun (247)

Implement ChatGPT API in C# WPF with GPT3.5-turbo

All Articles

WPF

Use Themes?

15 Mar 2010 by #realJSOP

We have a number of button images used in our app. As expected, management isn't sure that it's happy with the current images, so I am trying to come up with several different sets that can easily be swapped into the application. What's the best way to go about doing this? Is "use themes" the...

Need an advice about starting a raster drawing program with WPF

7 Aug 2009 by #realJSOP

0) Start Visual Studio1) Click File | New... | Project...2) On the left side of the subsequent dialog box, click "Windows"3) On the right side, click "WPF Application"4) At the bottom of that dialog, enter an entertaining, yet applicable name for...

Unhandled Exception in XAML - How to solve ?

9 Jan 2010 by #realJSOP

You have to have Microsoft Expression to work on the project (or find the redistributables somewhere (probably the MSDN site).

Wpf - Removing resourcedictionary creates problem

12 Jan 2010 by #realJSOP

If you remove the resource file, your *application* won't find it. I think your ownly recourse is to merge the resource file in each window that needs it (and take the merging out of your app.xaml file).

Comparing to results in method C# wpf

17 Jan 2010 by #realJSOP

Why are you comparing label values? That's really bad form. The code you posted doesn't make any sense at all.

Index was outside the bounds of Array

21 Jan 2010 by #realJSOP

USE THE DEBUGGER.It would have allowed you to discover that there is only one item in the rdr object. Using a value greater than 0 will almost always result in an exception.

SQL-Server-2005

Insert animations to a StoryBoard programmatically

21 Jan 2010 by #realJSOP

Just create one storyboard for each animation.

WPF Base Page problem

12 Feb 2010 by #realJSOP

Your xaml isn't correct.You need to do something like this:

15 Feb 2010 by #realJSOP

Use the DispatcherTimer object instead of System.Timers.Timer. BTW, this is EASILY answered by using google.

WPF (mouse hover)

18 Feb 2010 by #realJSOP

In the buttons template, you need to set a trigger for the mouseover event. You should be able to easily find an example using google.

Binding mutilple columns in WPF listview

7 Mar 2010 by #realJSOP

WPF's ListView doesn't have "SubItems" like the Windows Forms ListView does.do this in yur C# code:listView.ItemsSource = myCollection;and something like this in your XAML ...

Vb.net coding with WPF application Video Tutorials.

7 Mar 2010 by #realJSOP

If you can use google, you can find them. It's easy - really.

what is blend in WPF

12 Mar 2010 by #realJSOP

nav234 wrote:why it is considered to be de rigeur for XAML application development.Because Microsoft thinks an arbitrary separation of programmers and "designers" would be a good way to make more money ($600 for the entire Expression library). Every question asked of Microsoft by a...

how to integrate fusionchart with wpf + c# desktop application

21 Mar 2010 by #realJSOP

You have to use Flex to develop a SWF that exposes functionality (like specifying the database connection, passing in data, and other control considerations). Once you do that, you can access the SWF programatically via C#.Specific info on interfacing a SWF with C# is available on the web. ...

WPF UserControls - Running public void in Parent Window?

19 Mar 2010 by #realJSOP

If it were me, I'd change the protection level (if necessary) on the internal UserControl, and then subscribe to the appropriate event from the main form.private void Load(){ this.userControl.innerUserControl.Button.Click += ....}I know, it's not very OOP-centric to expose...

How to export data from WPF toolkit datagrid to Excel

23 Mar 2010 by #realJSOP

I found this exchange with google:WPF's DataGrid is a bit different than ASP.net's DataGrid. One way you can export to excel with WPF's DG is to use the DataGrid.CopyToClipboard command which makes a copy in a CSV, html, and text format. From there you can either just create a csv file or...

WPF/C# - Scanning a Directory for Files?

30 Mar 2010 by #realJSOP

Look at the DirectoryInfo.GetFiles() method. It does exactly what you need (returns an array of strings that represents the file names that exist in the folder in question.

WPF - How to access an element in page from a Custom User Control

5 Apr 2010 by #realJSOP

The proper way to do it is to have the parent form subscribe to the button-click event for the button on the user control. I think you may have to change the button to be public in order to do it, but I don't remember exactly if that's necessary.Once you've done that, simply rotate the grid...

Setting non-numeric grid row/column sizes in WPF/Silverlight

22 May 2010 by #realJSOP

Programatically set grid row/column sizes (yes, even "Auto", "*", and "X*" - thanks Nish).

Can I use wpf (not wpf 4.0) with 3.5 net framework to write programs for microsoft surface ?

11 Apr 2010 by #realJSOP

Yes. Surface is written completely with WPF. There are plenty of details if you'd only use google.

Crystal Report Viewer very slow

12 Apr 2010 by #realJSOP

Have you run this under the debugger to see exactly what part of it is slow? Which line is taking the most time?

WPF program doesn't seem to call functions or make changes to canvas outside of Window() function

18 Apr 2010 by #realJSOP

You need to handle the click event for the "node" (the visual representation of it on the screen).This means you need to add the handler when you create the node.

It does not work off MenuItem in ContextMenu

19 Apr 2010 by #realJSOP

Well, your element name is ListViewTask, and your trigger is using listView.

How to Display two image in one image control in Wpf

19 Apr 2010 by #realJSOP

Two at the same time? You could write a custom PictureControl template that would allow two images. That would be the first thing I'd try.

WPF-UserControl Binding does not Work when colsing a Dialog

21 Apr 2010 by #realJSOP

Looks to me like you forgot to put Mode=TwoWay into your XAML snippet.

Tree view in Wpf(xaml)

28 Apr 2010 by #realJSOP

You can do it pretty much the same way. In fact, the code should pretty much be able to be dropped in exactly the way you already have it (with the appropriate variable name change for the treeview itself).

Bag O'Tricks with NumericUpDown?

5 May 2010 by #realJSOP

http://weblogs...

How to get parent control in wpf?

9 May 2010 by #realJSOP

UIElement parent = this.Parent;

Line Graph Plotting for the values retrieve from sql

12 May 2010 by #realJSOP

You didn't mention which graph library you're using, but usually, you need to bind the data to a Series, and map the appropriate data properties.

edit list in wpf

15 May 2010 by #realJSOP

Your question is porrly word. Do you want to allow the user to edit the row in a listview, or do you want to change the value in the List?

edit list in wpf

15 May 2010 by #realJSOP

Find the item in the list with the desired ID and change the desired property for that item. There are a couple of ways you can find the item - iterating the list with a for loop, or using Linq. Personally, I think a for loop is more efficient, but a Linq statement requires less code.for...

ObservableDictionary!

22 May 2010 by #realJSOP

In WPF/Silverlight, you might want to bind to a dictionary. Here's a couple of websites I found.

Using Excell, Word in .net App

25 May 2010 by #realJSOP

Google "microsoft office sdk", and see what you come up with. (I'll give you a hint - there are 1.78 MILLION hits).

How to override default wpf button style?

25 May 2010 by #realJSOP

The only thing I can think of is it's because you haven't overridden the ENTIRE style/template. Microsoft has all of the standard templates available as a download, or if you have Expression Blend, you can just create a copy of the template.

WPF user controls -> Warning: Could not load type ... from assembly

4 Jun 2010 by #realJSOP

You might have some invalid xaml in your control that's not working. WPF is real touchy about that. Does the control show up in the designer?

Problem with WPF dynamic nested controls selected item

4 Jun 2010 by #realJSOP

The problem I think is that your tiNew variable is being reallocated, so the program has the same tab twice. You sholud write a method that creates a new TabItem and sets all the appropriate properties, and returns the TabItem to be added to the TabControl.Items collection.

Code has error but runs correctly in IDE

7 Jun 2010 by #realJSOP

I think you might be able to do this:In your Convert method:return new string(value);In your ConvertBack method:return ((string)value).ToArray();

disable/invisible controlbox in wpf user control

7 Jun 2010 by #realJSOP

Set it's Visibility property to Hidden or Collapsed.

Change the color of a custom button

9 Jun 2010 by #realJSOP

Do you mean change color while the left mouse button is down, or change color permenantly after it's clicked?For the first choice, you need to add a trigger (in your XAML) that changes the color when the button is pressed. In the second, you could bind the button's Background property to a...

Display percentage on pie charts in WPF

9 Jun 2010 by #realJSOP

Try use the legend to do that. You might even find some code (using google) to do that.

Bind a border's size to canvas size

1 Jul 2010 by #realJSOP

Try {Binding RelativeSource{RelativeSource=TemplatedParent}, Path=(property name goes here)instead of{Binding ElementName=thumbCanvas, Path=ActualWidth}

iterating through an array 10 items at a time and adding to listbox through button press

2 Jul 2010 by #realJSOP

The following will undoubtedly need some tweaking, but it should be close:int m_itemCounter = 0;bool TopOfList { get { return m_itemCounter == 0); } }bool EndOfList { get { return m_itemCounter >= listBox.Items.Count; } }private List GetNItems(int count){ List...

WPF Data Entry with Linq

2 Jul 2010 by #realJSOP

Are you using an ObservableCollection, and are your collection items derived from INotifyPropertyChanged?

Put words in a sentence bold

2 Jul 2010 by #realJSOP

You can't do it in a single TextBlock control.

WPF cancelling twoway binding

9 Jul 2010 by #realJSOP

Change the trigger to bind to the state of an internal bool property that indicates whether or not the user clicked okay or not...

Rotating 3D model

9 Jul 2010 by #realJSOP

This is just a wild guess, but I suspect it involves a storyboard/animation which changes the perspective. I found this with google, and you could have, too.http://www.codegod.de/WebAppCodeGod/wpf-3d-animations-and-textures-AID439.aspx[^]

Can one write Conditional XAML?

30 Jul 2010 by #realJSOP

No, but you can write conditional code in the code behind that sets styles or in converters that set properties.We don't have conditional stuff in our code, but pretty much the entire layout/content is determined after reading database settings, and that's how we do it.

problem with swf file in wpf

31 Jul 2010 by #realJSOP

Are you playing the swf file into a web browser control? If so, you should be able to set the following on the web browser: It *should* cause the swf do grow with it.

wpf window

2 Aug 2010 by #realJSOP

Do all of these things:0) Set the HorizontalAlignment and VerticalAlignment properties to Center.1) Remove the Margin property completely2) Set the Width and Height to something that does not exceed the resolution of the monitor.

WPF how to run a WPF window maximized

2 Aug 2010 by #realJSOP

Your Margin, HorizontalAlignment, and VerticalAlignment properties are all whacked out. Part of the problem with VS2008 is that when uyou move stuff around in the designer, it CHANGES those properties for based on what it THINKS you want to do. I don't know if VS2010 still does this, but I...

How to disable the close button of a form?

12 Aug 2010 by #realJSOP

button.IsEnabl...

How to set new location for control

12 Aug 2010 by #realJSOP

Change the Margin property.

ActiveX controls in WPF

19 Aug 2010 by #realJSOP

You need to use Winforms integration to make that work. Here's a link that might help.http://blogs.msdn.com/b/mhendersblog/archive/2005/09/23/473065.aspx[^]If that doesn't help enough, google this phrase:"activex control in wpf"

Data Binding Using Controls in Two Windows in WPF

20 Aug 2010 by #realJSOP

Have you tried using a globally accessible object (derived from INotifyPropertyChanged), change it with one window, and read it with the other.

How to get ActiveX component into WPF ?

25 Aug 2010 by #realJSOP

You might be able to enclose them in a WinForms control, and then include the WinForms control in your WPF app, but that's highly theoretical. Maybe google can help answer that, or you can just be a programmer and try it out.BTW, why would you want to ruin your app by using Active-Xcrement?

How to use Windows C# Forms in WPF MDI nature ?

25 Aug 2010 by #realJSOP

There's no support for MDI in WPF - at all.

Mouse Events flow through to Parent Window from MessageBox in WPF

7 Sep 2010 by #realJSOP

You have to make the messagebox modeless, but still stay on top.This might mean creating your own messagebox class.

Enum to Wpf ListBoxItem as CheckBox

21 Sep 2010 by #realJSOP

0) You could create a new property in your data item that combines the item text with the enum name, and bind that new property to the listbox item.1) You could create a custom ListBoxItem template that contains an element for the listbox item text AND the enum name, and bind the two fields...

how to set a scroll bar in wpf

22 Sep 2010 by #realJSOP

I recommend that you learn how to use google. It takes much longer to get an answer to your question here than doing a search on google.

WPF window update

6 Oct 2010 by #realJSOP

The timer thread should perform the while loop and at the desired interval, send a message back to the form which can then use Dispatcher.Invoke to update the button.At least, that's the way I'd do it.

I`m new To vb.net with Wpf, i have got some issues please , i`m expecting some solutions

6 Oct 2010 by #realJSOP

Why don't you let the WinForm control be in charge of scrolling itself, and just put it in the WPF form?

Reasons for using WPF

13 Oct 2010 by #realJSOP

i rfs 2 rply 2 ne1 uzing txtspk

WPF Designer causes exception when viewing newly added user control

18 Oct 2010 by #realJSOP

You have to make sure the app is compiled with the new user control before trying to use it in the designer.

MouseEnter Event not firing - WPF

22 Oct 2010 by #realJSOP

When I come up against stuff like this, I resort to creating a simple test application to see what happens. That's what I suggest you do to find your answer.A worm with overlapping (but not completely overlapping) controls with the mouse enter event specified. Then run it under the debugger...

How to make a complete project in WPF using Visual Studio 2008

25 Oct 2010 by #realJSOP

NNow that you've learned the basic concepts of WPF, what does it have to do with a conent management system? You could possibly convert your knowledge of WPF to Silverlight, but a CMS is pretty heavy software for Silverlight. You'd have to be very careful with loading modules so you don't...

how can i set the Grid.Row and Grid.Column in Code?

1 Nov 2010 by #realJSOP

Grid.SetColumn...

finding the textbox created in wpf

16 Nov 2010 by #realJSOP

Why are you making it hard on yourself? If you're creating it dynamically, why not just hold onto in in a global static variable? That way, you can access it from anywhere you might need to.Did you assign it a Name? If so code like that shown at this link should...

WPF controls wrap around problem

21 Nov 2010 by #realJSOP

You should rethink your UI design. A form full of buttons is one of the worst ideas I've seen. If your buttons can be categorized into groups, consider using a TreeView or even better, a menu. If they can't be categorized, consider a ComboBox or ListBox to contain the form names. If for...

Get control from ElementHost

29 Nov 2010 by #realJSOP

Try this:0) Get the parent container from the control's Parent property1) Get the collection of children from the parent's Children property2) Find the control int he children collection that's currently got the focus3) Set the focus on the next child in the children collection.

Can XAML be used to declare other objects than WPF components?

7 Dec 2010 by #realJSOP

No. XAML is a layout manager - nothing more.

Drag 'n Drop & UAC

7 Dec 2010 by #realJSOP

What you could do is change the icon when the object is dragged over an app that's running in admin mode (and your app isn't).

C#: Writing/Reading From Text File At Same Time + WPF

11 Dec 2010 by #realJSOP

Have the program that's writing to the file open it with write exclusive, and have the other program run a FileSystemWatcher on the file. When it detects that the file has been written to, it can then read from the file.Yes, threading will be required so that you don't lock up the UI on the...

Why BorderBrush Color cannot change in Trigger ?

17 Dec 2010 by #realJSOP

This is just a stab in the dark, but try changing the TargetType in the style to just be "TextBox" (instead of "x:Type TextBox").EDIT ====================Try moving the style into the grid: If that doesn't work, move it into the...

WPF best way to track buttondown event

20 Dec 2010 by #realJSOP

You probably need to create a thread on the ButtonDown event, and abort that thread on the ButtonUp event.The thread will sit/spin until aborted, and every 1/2 second (or the interval you specify), the target value is increased. If it were me, I'd use a BackgroundWorker object as my...

Will WinForms be deprecated in favor of WPF

20 Dec 2010 by #realJSOP

What makes you think we have any better insight than people that work at Microsoft? Depending on what day it is and who's blog you're reading, Microsoft is talking about abandoning WPF, Silverlight, and now, Winforms. I guess we'll all soon be out of a job.

convert c# code to work in wpf

23 Dec 2010 by #realJSOP

The only way to convert it to WPF is to do it by hand (manually). You could also use the WPF/Winform Interoperability to bring the whole form over as is, but that's kinda ugly, and is not, of course, pure WPF. If you do decide to go this route, I would put the Winform form into its own...

Right click context menu

25 Dec 2010 by #realJSOP

To add to Eddy's answer, you would do something like this:if (sender is TextBlock){ // ... do something }else if (sender is Button){ // ... do something }

Grid.FindName and Grid.Children[]

24 Dec 2010 by #realJSOP

Try this:Grid eobj1 = (Grid)(LogicalTreeHelper.FindLogicalNode(this.poolTable, "poolBall"));The FindName method is universally despised due to its apparent flakiness. I'm sure there are rules regarding its use, but sometimes it's better to just accept that aspect, and find another way to...

mdi equivalent for WPF

26 Dec 2010 by #realJSOP

WPF does not support the MDI paradigm. That's one of the reasons VS2010 (in its own UI) doesn't support it anymore either. People have complained, but I don't know if MS is going to take steps.

WPF tab control like Winfrom

27 Dec 2010 by #realJSOP

Google this phrase - "c# wpf tab control", and revel in the glow of 248,000 returned results. There are several good links on the very first page.

.Net Framework 4.0

29 Dec 2010 by #realJSOP

No. That subject is way to broad to be answered here. The best thing you can do is develop some initiative and google ".Net 4.0". There are MILLIONS of results awaiting your perusal.

Disable animation in WPF ProgressBar

7 Jan 2011 by #realJSOP

It's not the ProgressBar that's cpu-intensive - it's your code. If you want to prove that theory to yourself, simply comment out all of the calls to all of your ProgressBar controls.

Nested class object through XAML

12 Jan 2011 by #realJSOP

With either a DataTemplate, or an ItemTemplate.

How to show Lines of listview

12 Jan 2011 by #realJSOP

You could use google to find the answer. BTW, they're called "gridlines".http://www.designerwpf.com/2007/12/11/how-do-i-set-up-grid-lines-for-my-listview/[^]

wpf web application draft printing

14 Jan 2011 by #realJSOP

Googling "wpf printing" giveds back 348 THOUSAND results. This is one of them:http://www.eggheadcafe.com/tutorials/aspnet/9cbb4841-8677-49e9-a3a8-46031e699b2e/wpf-printing-and-print-pr.aspx[^]Feel free to google it yourself if that link doesn't help you.EDIT===============If you...

web_development

"path property must set before calling the send method"

16 Jan 2011 by #realJSOP

If this is in connection with a web service, that error means that the WSDL doesn't have a Service section defined to specify where the web service is located.If you google the error, you'll probably be able to find an more precise description of your problem.

WPF Control Visibility and Button Click Lifecycle

19 Jan 2011 by #realJSOP

Put the code in CheckConnection into a thread, and then display/update the progressbar via appropriate mechanisms (Invoke).

load image from database to image control in wpf

21 Jan 2011 by #realJSOP

You're also not setting the image source property to what you're hoping is the returned image.I don't know if you need it or not, but I use this method to convert a byte[] array to an BitmapImage...

Dynamic WPF App

21 Jan 2011 by #realJSOP

We're not going to do your work for you. If you have a question about something you've actually tried to do, we might be able to help, but coding from scratch? For You? For Free? Not gonna happen, Sparky.

Chat application in WCF

7 Feb 2011 by #realJSOP

AppSettings if for settings not necessarily related to the WCF service. How the clients connect are determined by how you decide you want to do it. If it were me, I'd develop a centralized sever app that marshalls messages between connecting clients. That way, each client would simply need to...

Provide Interview questions for .NET 4yrs Exp.

8 Feb 2011 by #realJSOP

If that's what you heard, then that's what you should study up on. Chances are pretty good that they'll be asking fairly basic questions, but that really depends on the amount of experiecne they're looking for. Without a fairly basic understanding of the cited technologies, you're going to have...

Explain about what is WCF & WPF

8 Feb 2011 by #realJSOP

Based on the last question of yours that I answered, if your upcoming interview mentioned WCF and WPF, you should probably look for work elsewhere. By the looks of things, you don't even have the mental chops to use google on your own.

How to access inner elements of a WPF custom control that doesn't implement the AutomationPeer class?

9 Feb 2011 by #realJSOP

Handle the control's Loaded event, and see if its Children colleciton is populated at that point. A WPF control doesn't have any children until it has been rendered.

custom-controls

Need help to develop Stock Market Simulation system

18 Feb 2011 by #realJSOP

Really? Evaluate the requirements, decide on your supported platform, and choose the appropriate language/framework. Analisys part of learning how to be a programmer.

How to cut a particular part from a string?

28 Feb 2011 by #realJSOP

string code = "";string myString = "{ name = tuutusdydfh, code = cs11 }";myString = myString.Replace("{", "").Replace("}", "").Replace(" ", "");string[] parts = myString.Split(',');foreach(string part in parts){ if (part.StartsWith("code=")) { code =...

Problem in Wait for a thread to finish in C #

16 Mar 2011 by #realJSOP

What do you WANT to happen? Once a thread is started, it shouldn't be blocking the UI. public void button_Click(...){ Thread thread = new Thread(new ThreadStart(ThreadProc)); thread.Start();}public void ThreadStart(){ // do something}Even if you use a...

Chat application which can work on internet

16 Mar 2011 by #realJSOP

They ALL work over the internet. And yes, WCF should be fine. You don't have to worry about clients IP addresses because they don't change as long as their connection to the internet is alive. The only time their IP will change (about 99.99% of the time) is if they cycle the power on their...

WindowsFormsHost and Popup control

16 Mar 2011 by #realJSOP

Have you run it under the debugger to see what's happening when you try to select a list item?

WPF, C# Sorting and two-dimensional ArrayList

16 Mar 2011 by #realJSOP

Don't use an ArrayList - use a generic collection. Once you've converted your code, check out this tip/trick:A Generic Comparison Class for Collection Items[^]

Fastest way to add text on canvas dynamically

24 Mar 2011 by #realJSOP

Why are you putting stackpanels on a canvas? Are you animating the canvas? If not, it just seems redundant.