Click here to Skip to main content

Submit your article

XAML

XAML

Great Reads

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.

Multiplatform Avalonia .NET Framework Programming Basic Concepts in Easy Samples

by Nick Polyak

This article explains the most important and basic concepts of Avalonia WPF-like multiplatform UI package.

ListBox Styling (Part 3 - Additional Templates) in Expression Blend and Silverlight

by Alan Beasley

Explanation and examples of Additional Templates and Generated Content of a ListBox. Covering Layout, Transitions, and Animation.

Conceptual Children: A powerful new concept in WPF

by Dr. WPF

This article describes a new approach by which an element can remove its visual and logical relationships to its children while maintaining a conceptual parental relationship with those children.

Latest Articles

ChatGPT API in C# WPF / XAML / MVVM

by Peter Sun (247)

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

Xamarin Forms - Validations Made Simple

by Chandru BK

This article will assume you have basic knowledge of C# and Xamarin Forms and shows how to implement the Xamarin Form Validations using simple Data Annotations applied on the models.

Convert a Win32 Project to WinUI3 Automatically

by Michael Chourdakis

A set of tools to create a new VCXPROJ file automatically

Customizing ListBox for a Smooth Animated Navigation Bar in WPF

by vickyqu115

Control featuring design and animations specialized for mobile, but can be elegantly and structurally implemented using ListBox and Animation technologies available in WPF.

All Articles

XAML

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 (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.

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?

How do I add elements to a WPF canvas from a separate class file?

17 Apr 2010 by #realJSOP

I would create the Canvas object in question as a static (and globally accessible) object, and just use the static instance wherever it's needed.

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.

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...

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...

Put words in a sentence bold

2 Jul 2010 by #realJSOP

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

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.

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 keep the size ratio of a object as it is re sized?

3 Sep 2010 by #realJSOP

Put the image in a Viewbox control, and set the Stretch property to "Fill"

How to remove timeline button from rad scheduler

18 Sep 2010 by #realJSOP

Determine the x:Name of the component, and set its Visibility property to Collapsed.

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...

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

7 Dec 2010 by #realJSOP

No. XAML is a layout manager - nothing more.

Nested class object through XAML

12 Jan 2011 by #realJSOP

With either a DataTemplate, or an ItemTemplate.

WPF Styling Controls

18 Apr 2011 by #realJSOP

Microsoft makes the default styles available in a download, and are based on the selected windows theme.http://code.msdn.microsoft.com/wpfsamples#themes[^]Or you can find a 3rd party tool like Style Snooper[^].Google reveals all.

What to choise:Custom Control or User Control?

11 May 2011 by #realJSOP

What you're describing is a UserControl.

setting global values in xaml files

21 Jun 2011 by #realJSOP

You could do it this way: and then just use the style.

HELP ON Silverlight Toolbox for phone

20 Jul 2011 by #realJSOP

well first, I would do this:if (_area != null)before trying to use it for anything.Second, set the debugger setting that allows you to trace into the framework code so you can see what the LongListSelector.Balance() method is trying to do. That might steer you towards solving the...

How to Make WPF PopUpControl Sticky?

17 Aug 2011 by #realJSOP

Bind it's location to be relative to the position of the button it's related to.

C# equivalent of the Xaml code

31 Aug 2011 by #realJSOP

Why can't you work it out yourself? You have everything required to figure it out right in front of you. Intellisense will help you, too.EDIT ======================Google helps too:MSDN - Sample that shows how to create a transform programatically[^]It should be equally easy to...

Events not working in release build

23 Sep 2011 by #realJSOP

0) Look at the first line of your xaml. Remove the xmlns:x="#unknown">1) what is the removed property in the grid? I'm not familiar with that.

How to insert wpf UserConrol projects into a MainWindow project at runtime (Finally was solved:-)

22 Nov 2011 by #realJSOP

Something like this:MyControl control = new MyControl();this.rootGrid.Children.Add(control);

WPF ListViewItem Style

13 Jan 2016 by #realJSOP

I wanted to match my ListViewItem style my my treeview and listbox items, but I can't get the style to take. I've got the following XAML for the style. I set the colors to black in the triggers so that it would be real obvious if I got it to work. I also only included one of the triggers in the...

WPF ListViewItem Style

13 Jan 2016 by #realJSOP

I figured it out. It was a "Stupid Programmer Trick" (tm). I was only loading the resource dictionary in one window. When I changed it to merged dictionaries in the app.xaml, everything fell into place. :)

Another Take on a WPF Wizard

11 Apr 2020 by #realJSOP

Any technology suitably advanced will generally be viewed as "magic".

Getting the whole custom control in my mousedown event

25 Oct 2016 by #realJSOP

Put one of these in your event handler:Canvas ctrl = sender as Canvas;- or -Canvas ctrl = (Canvas)sender;If canvas is null, call this method:/// /// Finds the parent./// /// /// The...

How do I set "ischecked" for nested toggle buttons (WPF, C#)

25 Oct 2016 by #realJSOP

The binding for the inner button's IsSelected property merely needs to refer to the value of it's parent control's IsSelected property, something like this:"IsSelected={Binding IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ToggleButton}}}"

How to add teh dictionary(key and values) values in datd grid in WPF?

1 Nov 2016 by #realJSOP

Define your Dictionary as a public property in your C# code, and do this in the XAML. ...

Can only base on a style with target type that is base type 'datagrid'

7 Nov 2016 by #realJSOP

Set TargetType="DataGrid" on both styles.

Get access to elements outside of XAML

4 Jan 2017 by #realJSOP

If the control is a child of the current control/form, use this.rtbBill.

Rows in XAML added as many elements in observablecollection

16 Feb 2018 by #realJSOP

Use a DataGrid or ListView, and bind the collection to the ItemsSource property. Keep in mind that WPF performance degrades with large collections. This can be addressed, but you'll have to google for the solution to that, because it's a big topic. You may be able to find an article on CP that...

Which button is clicked based on property in textblock XAML

20 Feb 2018 by #realJSOP

You could set the button's Tag property to the object it's associated with. button.Tag = collection[index]; When the button is clicked, inspect the Tag property to perform some operation on the object. EDIT================================= If it were me, I wouldn't use a series of TextBlock...

This freezable cannot be frozen. In WPF viewport2dvisual3d visual

15 Oct 2018 by #realJSOP

It's because the IFreezable object's CanFreeze flag is false. Since you provided no real info, that's the best I can do for you.

Wpf app: save datagrid changes to database using XAML and visual basic

1 Oct 2019 by #realJSOP

If you want the data to go both ways, you need to bing to an UbservableCollection of objects that are derived from INotifyPropertyChanged.

Wpf resources from referenced library not showing during design time

4 Nov 2021 by #realJSOP

When you reference a resource from outside the file where it is implemented, you have to use {DynamicResource} to reference it. You also have to create a ResourceDictionary in your xaml.

How do I add my codes to dictionary and call them wherever I need?

17 Nov 2021 by #realJSOP

You probably want to create a usercontrol that uses that stackpanel layout. Alternatively, you could put it into a resource library and deal with it that way. Either way, you'd have a re-usable stackpanel. Google is your friend for both strategies.

How do I add a glass effect to the selected combobox items in WPF?

29 Jan 2022 by #realJSOP

"Glass" is a theme in the OS, and affects all applications. I've found that making an application control its own transparency without specific relevance to the application itself is annoying to many users. I personally find no use for glass...

Dynamically load a XAML file with code behind

1 Jan 2017 by #realJSOP

Why don't you try creating a UserControl that contains your xaml. That way, you get all the benefits of having the code behind and can instantiate the code in your calling method:this.gridMain.Children.Add(new MyUserControl());That way, you maintain proper compartmentalization, and can...

Access to parent user control from children

11 Feb 2020 by .Net Perfect Dev

hi, i create a project WPF with 3 files xaml of user control in this architecture my question is how can i access from User control 1.1 to the the Grid control Parent? my objectif is maximize the popup child1.1 in same height and width of Grid...

How do I geocode in Windows Phone 8?

28 Sep 2015 by 09hadi

Hello, I would like to get help regarding this. I have used a plethora of open source projects but due to my inexperienced-ness, I havent been able to get the result.I am working on this project, in which I have gotten my current location and the coordinates but I havent been able to get the...

Simple WPF MVVM Concepts

30 Jun 2015 by 1sumitanand

This tip is for newbie developers.

Sorting in WPF-MVVM

1 Jul 2015 by 1sumitanand

Sorting of simple ListView Elements in Ascending/Descending Order

WPF ItemsControl:- Changes Property of Items inside ItemControle after ItemSource Property of ItemsControl being changed at Run-Time

21 Jul 2011 by 2irfanshaikh

I think you should do it in XAML it self.When we change the CurrentPage simply Notify itand in xaml, use Multiple Trigger and Condition check the button content is same as CurrentPage then change the background.Put the Multiple Trigger Style

Real-Time Multilingual WPF Demo

29 Jul 2008 by 2sky

Translate a WPF User Interface using the Google AJAX Language API in real-time

Cannot edit in celleditingtemplate

16 Feb 2024 by 4711a

I have a DataGrid with a DataGridTemplateColumn. I'm not able to edit the Comment field. When I double click on a Comment field, the background changes a expected to LightSalmon and the content of the bound property Comment is shown but I cannot...

A "little snake" leads us through the most important features of the Windows Phone 7

29 Jan 2011 by 69Icaro

Analyzing the Snake game, we'll study an application for the new Windows Phone 7 platform, focusing on localization, Inversion of Control, navigation, transition effects, triggers, Isolated Storage, audio and we'll also use Blend to create a rounded glowing button, and other things...

Windows-Phone-7

Simplest MVVM Tutorial -A Quick Refresher to WPF MVVM

13 Apr 2016 by @nkit Bajpai

This article discuss a simple application built using WPF MVVM design pattern and explain the basics of Command Binding and DataBinding.

System.Visibility Problem in wpf

14 Oct 2015 by _Amy

You are trying to use something that is null. This means you either set it to null, or you never initialized it.I would suggest you to step through the code and find the null object. You should check your MyScreen2 object.--Amy

Store and Organize your Shortcuts for Easy Launching of Files and Applications

5 Jan 2009 by _anil_

Store and organize your shortcuts for easy launching of files and applications

how to use web API to access data frome the database

18 Mar 2014 by _Asif_

Check this linkhttp in c# GET a page[^]

WPF Image Buttons 100% in XAML

27 Sep 2016 by _eol_

The goal of this article is to create flat image buttons with bindable properties.

Strange Behavior When I Press Enter Button.

8 Mar 2015 by _Maxxx_

After you click the +/- button, the button still has focus, so pressing enter 'clicks' the button - so changes the sign.

Understanding SelectedValue, SelectedValuePath, SelectedItem & DisplayMemberPath + Demo

21 Oct 2013 by _Noctis_

Sorting out the confusion about these properties, and providing a demo app for them

The Big MVVM Template

20 Apr 2016 by _Noctis_

To save you from doing this every time you want a WPF/MVVM project, here it is, all rolled into one.

JukeBox API - A Project for Artists and Developers

23 Aug 2009 by A Eastman

Project aimed at joint development between programmer and graphics artist

XLS0503 a value of type 'geometrymodel3d' cannot be added to a collection or dictionary of type 'uielementcollection'

14 Jun 2021 by A-Games

Why am i getting this error? This is code from the microsoft website:

How to change XAML page on button click

6 May 2010 by A5KEXTREME

HtmlPage.Windo...

Access datacontext of a control's parent's parent

16 Jul 2012 by aajeesh

Is there is any way in silverlight to access datacontext of a control's parent's parent. I have a user control bound to a viewmodel. User control contains a pivot control bound to one of viewmodel's property. So the pivot control item's datacontext is that property. Now i need to bind that...

Logical / Visual Tree Walking in WPF

15 Feb 2016 by Aaron Amberman

Advanced custom logical and visual tree walking methods

Change RichTextBlock Fint Size in Windows 8 Merto App

24 May 2013 by Aarti Meswania

Some Text.... Some Text.... Some...

2 Data Grid on Form. In second binding doesn't work

5 Jan 2012 by Abbath1349

I posted two DataGrid on a form, but in the 2nd DataGrid binding does not work. The properties ItemsSource they show the same values. If one change in the second changes automatically. How do I make it work properly?

2 Data Grid on Form. In second binding doesn't work

6 Jan 2012 by Abbath1349

relevant code: private void themeSelector2_SelectionChanged(object sender, SelectionChangedEventArgs e) { try { if (myDataSet.Tables["Asks"]!=null) myDataSet.Tables["Asks"].Clear(); ...

Prayer Times Windows Phone 8

20 Sep 2014 by Abdallah Gomah

Here you will find all about prayer time calculation:http://praytimes.org/[^]You will find the calculation method in addition to javascript code and also c# and other languages.

Windows-Phone-7

Designing your Azure MySQL DB with a UWP Demo

15 Apr 2019 by Abdelrahman El Kinani

Azure MySQL DB, how to design it, basic UWP todo demo

Checkbox lost in textchanged event (filtering )

14 Sep 2020 by abdou_31

I have a datagridView and I'm trying to filter some row using Id row , it work fine but the problem is when for example I check the datagridCheckboxColumn and I click in the searchbox ( TextChanged event ) , I lost the items checked How can I...

How to pass parameter in user control ?

27 Nov 2020 by abdou_31

I have a nested user control ( user control in other user control ) . Suppose that User Control 2 is in User Control 1 , I'm trying to set the Dependency property of TextDependesce in the User Control 1 , what I have exactly: The User Control 2...

How to make a dragable items list in windows phone like home page tiles of phone

5 Apr 2013 by Abdullatif M. Abu Al Rub

here is my solution using only XAML:1- in the headers of the .XAML pageadd this reference:xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"2- for any XAML object you want to set as drag-able use the following code(my example is on...

Windows-Phone-7

position in windows phone 7

5 Apr 2013 by Abdullatif M. Abu Al Rub

to be more professional you should use the row and column definition property of Grid control.here is a complete example:http://msdn.microsoft.com/en-us/library/system.windows.controls.rowdefinition(v=vs.95).aspx[^] if you found that useful please don't forget to mark as solution.Regards

Windows-Phone-7

Generic WPF CRUD Control (Solution Design)

22 Dec 2016 by Abdulrahman Emad, Muhammad Magdi

A generic CRUD control implemented based on the MVVM pattern

Generic WPF CRUD Control (Getting Started)

22 Dec 2016 by Abdulrahman Emad, Muhammad Magdi

A generic CRUD control implemented based on the MVVM pattern.

Using Silverlight Chart Controls With SharePoint 2010

25 Nov 2010 by Abhijit Jana

How to use Silverlight Chart Control with SharePoint 2010

Building Adaptive UI in UWP

25 Oct 2015 by Abhilash Raja

Building adaptive layout in a windows 10 app with relative panel and adaptive triggers

How to select all checkboxes in when one check box is clicked in WPF.The value in the list box is taken from database(flat-number).

11 Oct 2012 by Abhimanyu Rawat

Here you can use javascript function HeaderClick(CheckBox) { //Get target base & child control. var TargetBaseControl = document.getElementById(grvLeaveDetails); var TargetChildControl = "chkSelect"; ...

Finding a Child Control Inside Another Control

20 May 2009 by Abhinav S

Finding a child control inside another control

A Simple Quickstart - Using the Unity Container with Silverlight

12 Jan 2010 by Abhinav S

A simple Quickstart for using the Unity Container with Silverlight.

Unhandled Exception in XAML - How to solve ?

9 Jan 2010 by Abhinav S

You need to add a reference to the Microsoft.Expression.Interactions dll. To get the location of this dll - read here[^].Also, if you are opening someone else's project, make sure you have the right version of .Net installed.

How to change XAML page on button click

7 May 2010 by Abhinav S

Indrajeet Sutar wrote:but it does not execute serverside code What if this serverside code is called in the constructor of bkdgghome.xaml?

Silverlight 3 Toolkit : How to get the Drop Target from ListBoxDragDropTarget

28 May 2010 by Abhinav S

See if this post can help you out in anyway.

Put words in a sentence bold

25 Jun 2010 by Abhinav S

Found a post here - just one solution is given there but it might help.You could actually use multiple text blocks - some bold and others normal to display data.

Create a textbox event in WPF?

21 Jul 2010 by Abhinav S

I guess you are talking about two-way binding.See here.

Binding a Textbox to a particular column from a DB

26 Oct 2010 by Abhinav S

where FirstName will be a property within your model.

Styles and User.Resources - Silverlight

30 Oct 2010 by Abhinav S

On the whole, you should be doing that. All common resources should be moved to a common dictionary.Just as a sample, see here[^].

TextBox problem

9 Dec 2010 by Abhinav S

First of all, I dont see a binding that says TwoWay.So whatever you type into the textbox your underlying datasource is not going to change.Second make sure you are not doing changes in code that could be formatting the text inside this textbox.

Best Way to Learn Silverlight4 very quickly

11 Dec 2010 by Abhinav S

You might want to start with some quickstarts[^].

[Solve]]WPF Toolkit Grid Control issue

25 Dec 2010 by Abhinav S

Maybe you could try setting a margin on each of the column headers.

Nested class object through XAML

12 Jan 2011 by Abhinav S

See here[^] for a workaround.

C# : How Write text with Underline or Overline in C#

24 May 2011 by Abhinav S

Have a look at the RichTextBox[^] class in WPF.

How to set series color in SilverLight?

28 May 2011 by Abhinav S

You can re-style See here[^] for an example.

WPF Dimension in pixel instead of logical units

4 Jun 2011 by Abhinav S

A logical unit is a 1/96 of an inch.Have a look at the last section in this article to get a solution to do this - http://www.wpftutorial.net/DrawOnPhysicalDevicePixels.html[^].

most suitable database for wpf

5 Aug 2011 by Abhinav S

A choice of database depends not so much on which programming language but rather on the requirements and what you / the client can afford. For a small web application, using Oracle would not make sense - the administration costs would be high. MySQL would be a good choice. Thus choose...

XAML code in CodeProject Article

16 Aug 2011 by Abhinav S

Paste you code and then choose code block (if you are using an HTML5 compliant browser).Example as below - Xaml here

Silverlight label display style

31 Aug 2011 by Abhinav S

AFAIK, there is no control that does this for you.So you will need to build something of your own.This article[^] might give you some ideas though.

Shadow or reflection in WPF

15 Oct 2011 by Abhinav S

These articles might help you -Creating Inner Shadow Effects for WPF and Silverlight[^]http://www.silverlightbuzz.com/2009/10/09/using-blurs-and-shadows-in-blend/[^]http://asimsajjad.blogspot.com/2010/09/drop-shadow-effects-for-beginners.html[^][Update] Link for 3D shadows added -...

Xaml to C# , how to write in c# code

16 Oct 2011 by Abhinav S

Go through a book or some documentation on msdn / the internet for each of these parts individually.You should be able to find more information.For starters - Control Styles and Templates[^]WPF Data Binding - DataTriggers [^]

how i can retrieve xml data form web service to silverlight

27 Oct 2011 by Abhinav S

These links should help you out - http://forums.silverlight.net/t/11702.aspx[^]http://blogs.silverlight.net/blogs/msnow/archive/2009/02/10/silverlight-tip-of-the-day-93-reading-xml-with-silverlight.aspx[^]

how to know which item in canvas is clicked - WPF

9 Jan 2012 by Abhinav S

If you can understand Routed Events, then will able to figure out the exact control the click is coming from - go through this[^].