Articles by Clifford Nelson (Articles: 50, Tip/Tricks: 62)

Articles: 50, Tip/Tricks: 62

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Technical Blogs
Tips and Tricks
Reference Articles
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Average article rating: 4.87

Desktop Programming
WPF	Creating a Cursor from a Font Symbol in a WPF Application 23 Mar 2016 Updated: 2 Apr 2018 Rating: 5.00/5 Votes: 17 Popularity: 6.15 Licence: CPOL Views: 28,382 Bookmarked: 20 Downloaded: 522 Please Sign up or sign in to vote. This gives the code to create a cursor from a character in a font.
	WPF MVVM View Binding to a Singleton and WeakReference 25 Apr 2018 Updated: 25 Apr 2018 Rating: 5.00/5 Votes: 13 Popularity: 5.40 Licence: CPOL Views: 16,647 Bookmarked: 7 Downloaded: 242 Please Sign up or sign in to vote. Concept to create a Singleton for WPF MVVM Binding, and using Weak reference for the property that is bound to.
	Value Converter to Evaluate User Equation Input 19 Jan 2012 Updated: 19 Jan 2012 Rating: 5.00/5 Votes: 10 Popularity: 5.00 Licence: CPOL Views: 26,542 Bookmarked: 16 Downloaded: 421 Please Sign up or sign in to vote. This value converter makes it very quick and easy to add the ability for the user to input equations in text boxes that are bound to numeric properties.
	WPF IValueConverter/IMultiValueConverter Helper Class 9 Aug 2015 Updated: 2 Apr 2018 Rating: 4.17/5 Votes: 14 Popularity: 4.78 Licence: CPOL Views: 21,275 Bookmarked: 24 Downloaded: 209 Please Sign up or sign in to vote. Presents a class to help create flexible value and multi-value converters that use the ConverterParameter to specify return values for true and false results using the ?: operator
	Using DescriptionAttribute for enumerations bound to a WPF ComboBox 10 Nov 2011 Updated: 27 Jan 2016 Rating: 5.00/5 Votes: 22 Popularity: 6.71 Licence: CPOL Views: 50,378 Bookmarked: 28 Downloaded: 647 Please Sign up or sign in to vote. How to use DescriptionAttribute for enumerations bound to a ComboBox.
	Numeric Up/Down Textbox that Inherits from TextBox 2 Nov 2010 Updated: 17 May 2011 Rating: 4.83/5 Votes: 28 Popularity: 6.83 Licence: CPOL Views: 103,959 Bookmarked: 26 Downloaded: 2,873 Please Sign up or sign in to vote. Describes how to create a control that inherits from a base control
	Enumeration RadioButton ListBox Control 3 Jan 2012 Updated: 3 Jan 2012 Rating: 5.00/5 Votes: 11 Popularity: 5.21 Licence: CPOL Views: 20,712 Bookmarked: 18 Downloaded: 399 Please Sign up or sign in to vote. An enumeration RadioButtion ListBox control.
	Generic WPF-Silverlight implementation for IValueConverter 18 Jun 2012 Updated: 18 Jun 2012 Rating: 5.00/5 Votes: 11 Popularity: 5.21 Licence: CPOL Views: 27,382 Bookmarked: 17 Downloaded: 221 Please Sign up or sign in to vote. A generic implementation for IValueConverter.
	Shadow Panel Inheriting from a Panel in C# 21 Nov 2015 Updated: 21 Nov 2015 Rating: 5.00/5 Votes: 9 Popularity: 4.77 Licence: CPOL Views: 12,332 Bookmarked: 8 Downloaded: 238 Please Sign up or sign in to vote. This article shows how to create a very simple control in C# that overrides the ArrangeOverride, GetVisualChild, and VisualChildrenCount to create a panel that shadows and disables contained controls.
	Behavior to Make a UIElement Visible on MouseDown 16 Feb 2016 Updated: 16 Feb 2016 Rating: 5.00/5 Votes: 11 Popularity: 5.21 Licence: CPOL Views: 10,290 Bookmarked: 11 Downloaded: 197 Please Sign up or sign in to vote. This article presents a behavior that can make another UIElement visible when the mouse down event occurs on the UIElement this behavior is attached to. Have extended this to directly support fading of a Popup control
	WPF Embedded Touch Keyboard 26 Feb 2016 Updated: 26 Feb 2016 Rating: 5.00/5 Votes: 11 Popularity: 5.00 Licence: CPOL Views: 21,751 Bookmarked: 14 Downloaded: 1,220 Please Sign up or sign in to vote. There are cases where it might be desirable to support character input without a keyboard attached in a more embedded application where the keyboard is displayed as part of the window.
	Creating an Image from a Font Symbol (Font Awesome) for WPF 29 Feb 2016 Updated: 29 Feb 2016 Rating: 4.94/5 Votes: 16 Popularity: 5.81 Licence: CPOL Views: 29,788 Bookmarked: 18 Downloaded: 530 Please Sign up or sign in to vote. This article presents a control that makes it very easy to create an Image control from a font symbol, with special support for Font Awesome.
	Simple WPF Bar Graph Control 1 Apr 2016 Updated: 1 Apr 2016 Rating: 5.00/5 Votes: 9 Popularity: 4.77 Licence: CPOL Views: 11,771 Bookmarked: 9 Downloaded: 344 Please Sign up or sign in to vote. This article presents a simple bar graph using an ItemsControl with a custom DataTemplate
	Displaying HTML in a WPF RichTextBox 2 May 2016 Updated: 2 May 2016 Rating: 4.92/5 Votes: 14 Popularity: 5.64 Licence: CPOL Views: 60,981 Bookmarked: 14 Downloaded: 2,795 Please Sign up or sign in to vote. Presents code to display bindable HTML text in a WPF RichTextBox or a WebBrowser.
	Capturing a Content Change in a ContentPresenter 5 May 2016 Updated: 5 May 2016 Rating: 5.00/5 Votes: 11 Popularity: 5.21 Licence: CPOL Views: 17,032 Bookmarked: 11 Downloaded: 201 Please Sign up or sign in to vote. This presents a way to capture a PropertyChanged on a DependencyObject, in this case to capture when the Content on a ContentPresenter changes and setting focus.
	WPF Text Outline Font 14 Jun 2016 Updated: 14 Jun 2016 Rating: 4.87/5 Votes: 10 Popularity: 4.87 Licence: CPOL Views: 21,483 Bookmarked: 8 Downloaded: 768 Please Sign up or sign in to vote. This presents as control inherited from the Shape control for displaying an outline font.
	WPF Advanced Format Converter 22 Jun 2016 Updated: 22 Jun 2016 Rating: 4.88/5 Votes: 11 Popularity: 5.08 Licence: CPOL Views: 12,792 Bookmarked: 9 Downloaded: 232 Please Sign up or sign in to vote. Format converter to handle more cases than the StringFormat, including infinity, and NaN
	Concept on Creating Graphics Elements in WPF 21 Sep 2016 Updated: 21 Sep 2016 Rating: 4.95/5 Votes: 8 Popularity: 4.47 Licence: CPOL Views: 9,943 Bookmarked: 16 Downloaded: 238 Please Sign up or sign in to vote. I have had two projects that I have worked on that required a lot of graphics. In general there has been minimal interaction between the user and the graphics, so the implementation has been very straight forward.
	How to Embed Arbitrary Content in a WPF Control with Binding 27 Sep 2016 Updated: 27 Sep 2016 Rating: 5.00/5 Votes: 7 Popularity: 4.23 Licence: CPOL Views: 10,838 Bookmarked: 7 Downloaded: 94 Please Sign up or sign in to vote. This is an alternative for "How to Embed Arbitrary Content in a WPF Control"
	WPF Selected RadioButton Control 29 Aug 2017 Updated: 29 Aug 2017 Rating: 4.90/5 Votes: 9 Popularity: 4.68 Licence: CPOL Views: 15,644 Bookmarked: 14 Downloaded: 207 Please Sign up or sign in to vote. There are times when want to have associated RadioButton controls on a window, and it would be much easier to interface to these controls with a single property instead of independent properties for each RadioButton. This control allows multiple RadioButton controls to be on a single Binding.
	WPF Multi-Data Type Control 14 Sep 2017 Updated: 14 Sep 2017 Rating: 4.83/5 Votes: 16 Popularity: 5.68 Licence: CPOL Views: 10,232 Bookmarked: 17 Downloaded: 201 Please Sign up or sign in to vote. A custom control that adapts to the datatype of the source.
	Expander Control with On/Off Content using RadioButton Control 2 Oct 2017 Updated: 2 Oct 2017 Rating: 4.53/5 Votes: 8 Popularity: 4.09 Licence: CPOL Views: 6,780 Bookmarked: 7 Downloaded: 101 Please Sign up or sign in to vote. This is a control that is like a Expander Control but there is both Expanded and not Expanded Content. It demonstrates some concepts on how to easily create controls whose functionality can be mostly implemented in the XAML with the code behind being mostly DependencyProperty definitions.
	Dynamic Binding of Static Properties 2 Nov 2011 Updated: 2 Nov 2011 Rating: 4.92/5 Votes: 14 Popularity: 5.64 Licence: CPOL Views: 41,092 Bookmarked: 15 Downloaded: 539 Please Sign up or sign in to vote. How to do dynamic binding of static properties.
	Binding using IDataErrorInfo with Attributes in WPF 13 Sep 2015 Updated: 13 Sep 2015 Rating: 4.92/5 Votes: 14 Popularity: 5.64 Licence: CPOL Views: 19,846 Bookmarked: 18 Downloaded: 438 Please Sign up or sign in to vote. This article presents an implementation to support IDataErrorInfo with attributes on the properties for WPF. It also covers other aspects of displaying error information using WPF.
	Behavior to support Window Closing in WPF 2 Feb 2016 Updated: 2 Feb 2016 Rating: 5.00/5 Votes: 8 Popularity: 4.52 Licence: CPOL Views: 24,376 Bookmarked: 17 Downloaded: 528 Please Sign up or sign in to vote. A problem with the WPF MVVM design pattern is closing a window from the ViewModel. This article presents a method that allows the use of dependency properties to be used to control the closing of a window
	MarkupExtension for Resources and Settings 25 May 2016 Updated: 25 May 2016 Rating: 4.93/5 Votes: 11 Popularity: 4.93 Licence: CPOL Views: 14,502 Bookmarked: 12 Downloaded: 93 Please Sign up or sign in to vote. Presents simple MarkupExtension for accessing the Properties.Resources and Properties.Settings files. Also, with Resources, which are always strings, conversion is supported.
	WPF/Silverlight Binding Using Flags Class 8 Jul 2011 Updated: 8 Jul 2011 Rating: 5.00/5 Votes: 6 Popularity: 3.89 Licence: CPOL Views: 16,820 Bookmarked: 9 Downloaded: 183 Please Sign up or sign in to vote. A special class is needed to support binding a set of flags to a View.
	WPF Dynamic Application Settings 5 Oct 2011 Updated: 5 Oct 2011 Rating: 3.82/5 Votes: 11 Popularity: 3.98 Licence: CPOL Views: 32,462 Bookmarked: 24 Downloaded: 480 Please Sign up or sign in to vote. WPF Dynamic Application Settings
	Discovering the Limitations of IValueConverter in WPF 14 Dec 2011 Updated: 14 Dec 2011 Rating: 4.65/5 Votes: 10 Popularity: 4.65 Licence: CPOL Views: 27,851 Bookmarked: 15 Downloaded: 224 Please Sign up or sign in to vote. Discovering the limitations of IValueConverter in WPF
	Using a TypeConverter for Binding in WPF 20 Aug 2012 Updated: 20 Aug 2012 Rating: 4.91/5 Votes: 15 Popularity: 5.78 Licence: CPOL Views: 51,823 Bookmarked: 20 Downloaded: 658 Please Sign up or sign in to vote. This article will show you how to implement a class that will provide type conversion for another class. In this particular case will be providing conversion to and from a string.
	Advanced WPF Localization 16 Jun 2016 Updated: 16 Jun 2016 Rating: 4.93/5 Votes: 10 Popularity: 4.93 Licence: CPOL Views: 15,473 Bookmarked: 13 Downloaded: 180 Please Sign up or sign in to vote. This is an alternative for "Advanced WPF Localization" that adds functionality for capitalizing and pluralizing the text to be display.
	Behaviors to create double or TimeSpan Value TextBox for WPF Masked TextBox 26 Oct 2016 Updated: 26 Oct 2016 Rating: 5.00/5 Votes: 7 Popularity: 4.23 Licence: CPOL Views: 11,084 Bookmarked: 10 Downloaded: 338 Please Sign up or sign in to vote. Presents a concept for creating a masked TextBox, and has the implementation for a TimeSpan and double value
	WPF Loading Wait Adorner 5 Dec 2016 Updated: 5 Dec 2016 Rating: 4.89/5 Votes: 10 Popularity: 4.67 Licence: CPOL Views: 15,333 Bookmarked: 11 Downloaded: 574 Please Sign up or sign in to vote. This is an alternative for "WPF Loading Wait Adorner"
	A Real MVVMLight Example 1 Mar 2017 Updated: 1 Mar 2017 Rating: 5.00/5 Votes: 18 Popularity: 6.28 Licence: CPOL Views: 40,166 Bookmarked: 23 Downloaded: 2,720 Please Sign up or sign in to vote. This is a more comprehensive example of how to implement a project with MVVMLight
	Generic WPF/Silverlight Value Converter 24 Nov 2011 Updated: 24 Nov 2011 Rating: 5.00/5 Votes: 9 Popularity: 4.77 Licence: CPOL Views: 31,551 Bookmarked: 20 Downloaded: 298 Please Sign up or sign in to vote. A generic WPF/Silverlight value converter.
	WPF Evaluated Value Binding Using Converter Parameter 26 Jan 2012 Updated: 26 Jan 2012 Rating: 4.53/5 Votes: 10 Popularity: 4.53 Licence: CPOL Views: 37,662 Bookmarked: 13 Downloaded: 191 Please Sign up or sign in to vote. A value binding converter for WPF.
XAML	Prism EventAggregator Sample 27 Mar 2012 Updated: 27 Mar 2012 Rating: 4.96/5 Votes: 30 Popularity: 7.33 Licence: CPOL Views: 117,048 Bookmarked: 35 Downloaded: 4,389 Please Sign up or sign in to vote. This is just an introduction to the EventAggregator, with a sample that is easy to understand.
Productivity Apps and Services
Microsoft Office	Excel Add-in Framework for Validating and Exporting Data 17 Aug 2012 Updated: 17 Aug 2012 Rating: 5.00/5 Votes: 13 Popularity: 5.40 Licence: CPOL Views: 53,604 Bookmarked: 32 Downloaded: 1,807 Please Sign up or sign in to vote. A framework for scanning a worksheet for headers, reading and validating data, providing feedback to the user, and displaying the data in a form with the results.
	Using Attributes in Excel Add-in Framework for Validating and Exporting Data 21 Sep 2012 Updated: 21 Sep 2012 Rating: 4.95/5 Votes: 12 Popularity: 5.35 Licence: CPOL Views: 34,504 Bookmarked: 14 Downloaded: 251 Please Sign up or sign in to vote. Demonstrates how to use attributes during run time in a serious application to improve maintainability.
Programming Languages
C#	Performance and Ideas from Anders Hejlsberg INotifyPropertyChanged 16 Feb 2012 Updated: 22 Feb 2012 Rating: 4.94/5 Votes: 26 Popularity: 6.91 Licence: CPOL Views: 71,181 Bookmarked: 46 Downloaded: 286 Please Sign up or sign in to vote. Performance and ideas from Anders Hejlsberg INotifyPropertyChanged
	Using Roslyn ScriptEngine for a ValueConverter to process user input 29 Feb 2012 Updated: 29 Feb 2012 Rating: 4.97/5 Votes: 17 Popularity: 5.98 Licence: CPOL Views: 44,452 Bookmarked: 20 Downloaded: 682 Please Sign up or sign in to vote. This article is about using Rosyln to evaluate user input in a value converter.
	Runtime variables class to support multiple application development 29 May 2012 Updated: 29 May 2012 Rating: 5.00/5 Votes: 11 Popularity: 5.00 Licence: CPOL Views: 10,952 Bookmarked: 13 Downloaded: 29 Please Sign up or sign in to vote. A runtime variables class to support multiple application development.
	Execution Extension Method 19 Apr 2016 Updated: 19 Apr 2016 Rating: 5.00/5 Votes: 11 Popularity: 5.21 Licence: CPOL Views: 8,430 Bookmarked: 9 Downloaded: 101 Please Sign up or sign in to vote. A set of extension methods to support conditional Expression Bodied Functions and Properties
	Finding Prime Numbers 12 Sep 2012 Updated: 14 Sep 2012 Rating: 4.67/5 Votes: 12 Popularity: 4.86 Licence: CPOL Views: 29,991 Bookmarked: 19 Downloaded: 0 Please Sign up or sign in to vote. This is an alternative for "Finding prime numbers".
	A Concept for Fast & More Flexible Date Entry 8 Jun 2017 Updated: 8 Jun 2017 Rating: 4.62/5 Votes: 10 Popularity: 4.62 Licence: CPOL Views: 6,890 Bookmarked: 7 Downloaded: 96 Please Sign up or sign in to vote. The DatePicker, in my mind, is a partial fix to many of the problems with a simple TextBox date entry. How would you like to be able to type “66” in a text box that takes a date and have it interpret it as “June 6th”? Or enter “FR” and have it interpreted as the previous Friday. Or enter “thanks” an
C# 4.0	Class to Support Attaching to Dependency Property 16 Jun 2011 Updated: 16 Jun 2011 Rating: 4.67/5 Votes: 9 Popularity: 4.45 Licence: CPOL Views: 23,292 Bookmarked: 14 Downloaded: 232 Please Sign up or sign in to vote. Provides a way to connect to an external DependencyProperty
XML	Helper Class for Async 23 Aug 2017 Updated: 23 Aug 2017 Rating: 4.97/5 Votes: 17 Popularity: 6.11 Licence: CPOL Views: 11,520 Bookmarked: 24 Downloaded: 247 Please Sign up or sign in to vote. This is a generic class that makes it much easier to create another class in the background. It also provides a good sample of how to use the Task.Run with the ContinueWith clause.
Web Development
HTML	Control to Support Custom Animations using VisualStateManager 5 May 2011 Updated: 5 May 2011 Rating: 4.89/5 Votes: 9 Popularity: 4.67 Licence: CPOL Views: 22,034 Bookmarked: 14 Downloaded: 401 Please Sign up or sign in to vote. Implements a control to support changing colors for Silverlight Shapes using VisualStateManager
	Generic ValueConverter for Binding Enumerations to Check Boxes 15 Oct 2011 Updated: 15 Oct 2011 Rating: 4.75/5 Votes: 13 Popularity: 5.13 Licence: CPOL Views: 27,502 Bookmarked: 17 Downloaded: 346 Please Sign up or sign in to vote. Generic ValueConverter for Binding Enumerations to Check Boxes
	An Enhanced WPF Custom Control for Zooming and Panning 19 Aug 2016 Updated: 19 Aug 2016 Rating: 4.96/5 Votes: 28 Popularity: 7.18 Licence: MIT Views: 48,896 Bookmarked: 22 Downloaded: 2,963 Please Sign up or sign in to vote. This is an alternative for "A WPF Custom Control for Zooming and Panning"

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Average tips rating: 4.81

Database Development
	Method to Change Source of a Form’s Subform Source to a Query or Table in Microsoft Access [Tip/Trick] 12 Sep 2018 Updated: 12 Sep 2018 Rating: 5.00/5 Votes: 1 Popularity: 0.00 Licence: CPOL Views: 9,559 Bookmarked: 2 Downloaded: 133 Please Sign up or sign in to vote. Method to change source of a Form’s Subform source to a Query or Table in Microsoft Access
Desktop Programming
Win32	Dynamically Bound Dictionary to Windows Grid [Tip/Trick] 15 Aug 2012 Updated: 2 Oct 2012 Rating: 5.00/5 Votes: 8 Popularity: 4.52 Licence: CPOL Views: 14,400 Bookmarked: 13 Downloaded: 161 Please Sign up or sign in to vote. This article presents a way to display totally dynamic data in a windows grid using a dictionary.
	Helper Methods for Working with Shares [Tip/Trick] 27 Jun 2018 Updated: 27 Jun 2018 Rating: 5.00/5 Votes: 5 Popularity: 3.49 Licence: CPOL Views: 5,301 Bookmarked: 13 Downloaded: 0 Please Sign up or sign in to vote. These are some methods I created to help with creating and deleting Windows shared directories.
WPF	WPF Behavior to Reset RadioButtons on VisibilityChanged [Tip/Trick] 2 Apr 2018 Updated: 2 Apr 2018 Rating: 5.00/5 Votes: 5 Popularity: 3.49 Licence: CPOL Views: 8,160 Bookmarked: 9 Downloaded: 64 Please Sign up or sign in to vote. This tip provides a behavior that will reset all RadioButton controls within a Control that has this behavior when the Visibility changes.
	WPF Behavior to close a Popup with MouseLeave [Tip/Trick] 3 Apr 2018 Updated: 3 Apr 2018 Rating: 5.00/5 Votes: 7 Popularity: 4.23 Licence: CPOL Views: 16,589 Bookmarked: 9 Downloaded: 289 Please Sign up or sign in to vote. Normally a popup will stay open until explicitly closed. The Behavior will close the Popup if the mouse is clicked within or outside the Popup area or leaves the Popup area.
	WPF Behavior to Ensure a ToggleButton/CheckBox is Selected [Tip/Trick] 4 Apr 2018 Updated: 4 Apr 2018 Rating: 5.00/5 Votes: 9 Popularity: 4.77 Licence: CPOL Views: 8,792 Bookmarked: 11 Downloaded: 116 Please Sign up or sign in to vote. This behavior will require that for any Group of ToggleButton/Checkbox controls that are associated together, the user cannot set all to not IsChecked.
	WPF ValueConverter to Convert to Correct Type [Tip/Trick] 5 Apr 2018 Updated: 5 Apr 2018 Rating: 5.00/5 Votes: 5 Popularity: 3.49 Licence: CPOL Views: 9,753 Bookmarked: 11 Downloaded: 0 Please Sign up or sign in to vote. Normally, there is no need to ensure that types exactly match when using a Binding. For instance, the Control property double to and int in a ViewModel
	WPF Select All Focus Behavior [Tip/Trick] 20 Jun 2018 Updated: 20 Jun 2018 Rating: 5.00/5 Votes: 7 Popularity: 4.23 Licence: CPOL Views: 20,113 Bookmarked: 5 Downloaded: 250 Please Sign up or sign in to vote. This behavior will select the entire text when a TextBox or PasswordBox gains focus
	Switch Type WPF ToggleButton/RadioButton (On/Off) Control [Tip/Trick] 19 Mar 2018 Updated: 19 Mar 2018 Rating: 4.68/5 Votes: 11 Popularity: 4.68 Licence: CPOL Views: 31,725 Bookmarked: 10 Downloaded: 870 Please Sign up or sign in to vote. A alternative ToggleButton/RadioButton control
	String Format ValueConverter [Tip/Trick] 9 Aug 2015 Updated: 9 Aug 2015 Rating: 5.00/5 Votes: 6 Popularity: 3.89 Licence: CPOL Views: 11,361 Bookmarked: 6 Downloaded: 0 Please Sign up or sign in to vote. This tip provides an alternate way to combine data with text in a WPF control using a ValueConverter that could be considered easier.
	Using WPF Behavior to Reduce Loading Time [Tip/Trick] 18 Apr 2018 Updated: 18 Apr 2018 Rating: 5.00/5 Votes: 6 Popularity: 3.89 Licence: CPOL Views: 7,790 Bookmarked: 12 Downloaded: 94 Please Sign up or sign in to vote. I had a situation where a control appearing was significantly affected by the initialization of the UserControls. This behavior fixed my problem.
	Flexible WPF XAML ToggleButton/RadioButton/CheckBox reset behavior [Tip/Trick] 27 Apr 2018 Updated: 27 Apr 2018 Rating: 5.00/5 Votes: 5 Popularity: 3.49 Licence: CPOL Views: 7,591 Bookmarked: 7 Downloaded: 78 Please Sign up or sign in to vote. This is a behavior that that will reset ToggleButton derived controls to false (or a specified default value) when the container's visibility becomes false.
	WPF Behavior to Give Buttons the Capability to Add, Remove and Reorder Contents of a ListBox [Tip/Trick] 3 Mar 2019 Updated: 3 Mar 2019 Rating: 5.00/5 Votes: 8 Popularity: 4.52 Licence: CPOL Views: 8,993 Bookmarked: 9 Downloaded: 140 Please Sign up or sign in to vote. This tip presents a behavior that will allow buttons to control the items in a WPF Selector (or ListBox) control.
	WPF Control of Image to be Displayed [Tip/Trick] 3 Mar 2018 Updated: 3 Mar 2018 Rating: 4.56/5 Votes: 7 Popularity: 3.85 Licence: CPOL Views: 7,180 Bookmarked: 7 Downloaded: 114 Please Sign up or sign in to vote. This tip presents a way to use the ContentControl and DataTemplate to easily control an image in a Window.
	WPF Behavior to Set Control Value to DefaultValue on Visibility Changed [Tip/Trick] 2 May 2018 Updated: 2 May 2018 Rating: 5.00/5 Votes: 4 Popularity: 3.01 Licence: CPOL Views: 10,962 Bookmarked: 7 Downloaded: 66 Please Sign up or sign in to vote. The tip provides a behavior that will set a control to a default value when the Visibility changes
	Creating Custom WPF Derived Control with Attached XAML File [Tip/Trick] 25 Jun 2018 Updated: 25 Jun 2018 Rating: 5.00/5 Votes: 7 Popularity: 4.23 Licence: CPOL Views: 9,816 Bookmarked: 10 Downloaded: 249 Please Sign up or sign in to vote. A way to create a custom derived control with the XAML file attached like a UserControl
	WPF MarkupExtension to Allow Strings with Multiple Resources [Tip/Trick] 4 Mar 2018 Updated: 4 Mar 2018 Rating: 4.56/5 Votes: 8 Popularity: 4.11 Licence: CPOL Views: 6,995 Bookmarked: 7 Downloaded: 52 Please Sign up or sign in to vote. Provides a way to have a string in XAML that can contain string values and references to resources that are inserting into the string like string interpolation
	Compact Audio Player for Language Learning [Tip/Trick] 16 Jul 2020 Updated: 15 Aug 2020 Rating: 5.00/5 Votes: 6 Popularity: 3.89 Licence: CPOL Views: 7,233 Bookmarked: 6 Downloaded: 467 Please Sign up or sign in to vote. A media player application specifically designed to support listening to language learning tracks
	Filtered DropDown ComboBox [Tip/Trick] 2 Jun 2012 Updated: 2 Jun 2012 Rating: 5.00/5 Votes: 4 Popularity: 3.01 Licence: CPOL Views: 34,002 Bookmarked: 5 Downloaded: 0 Please Sign up or sign in to vote. A rather quick and dirty way of creating a filtered combo box in WPF.
	WPF DatePicker Background Fix [Tip/Trick] 6 Jun 2012 Updated: 6 Jun 2012 Rating: 5.00/5 Votes: 8 Popularity: 4.52 Licence: CPOL Views: 26,681 Bookmarked: 9 Downloaded: 397 Please Sign up or sign in to vote. A little trick that will more completely fill the DatePicker background from the code-behind.
	Last Resort WPF Focus Solution [Tip/Trick] 26 Aug 2015 Updated: 26 Aug 2015 Rating: 4.86/5 Votes: 6 Popularity: 3.78 Licence: CPOL Views: 8,020 Bookmarked: 5 Downloaded: 0 Please Sign up or sign in to vote. If you are having issues with getting the WPF Focus() method working, then maybe all you need to do is add a delay on the Initialized event before setting the focus. This solution is a nice demonstration of the features of TPL, and how easy TPL can make doing asynchronous programming in the UI.
	Validation Attribute for Enum without Zero Value [Tip/Trick] 10 Mar 2016 Updated: 10 Mar 2016 Rating: 4.78/5 Votes: 5 Popularity: 3.34 Licence: CPOL Views: 14,272 Bookmarked: 5 Downloaded: 123 Please Sign up or sign in to vote. When binding to an Enumeration, the Required Attribute does not work if the enumeration does not have a zero value. This validator does work.
	WPF Timer Behavior [Tip/Trick] 18 Mar 2016 Updated: 18 Mar 2016 Rating: 4.18/5 Votes: 7 Popularity: 3.53 Licence: CPOL Views: 9,071 Bookmarked: 5 Downloaded: 72 Please Sign up or sign in to vote. There may be times when it would be nice to have a timer on a window. This is a behavior that when attached to a TextBlock, will display the time in minutes and seconds since the control was created.
	WPF Popup Enumerated Button Control [Tip/Trick] 24 Mar 2016 Updated: 24 Mar 2016 Rating: 5.00/5 Votes: 4 Popularity: 3.01 Licence: CPOL Views: 12,771 Bookmarked: 6 Downloaded: 173 Please Sign up or sign in to vote. WPF popup enumerated button control
	WPF Disabled Items Behaviour [Tip/Trick] 6 Aug 2016 Updated: 6 Aug 2016 Rating: 5.00/5 Votes: 12 Popularity: 5.21 Licence: CPOL Views: 7,320 Bookmarked: 7 Downloaded: 61 Please Sign up or sign in to vote. This tip presents a way to have disabled items in your ComboBox
	WPF Drop Down Menu Button [Tip/Trick] 5 Oct 2016 Updated: 5 Oct 2016 Rating: 4.94/5 Votes: 13 Popularity: 5.14 Licence: CPOL Views: 38,441 Bookmarked: 12 Downloaded: 1,214 Please Sign up or sign in to vote. Presents and implementation of a control that can be pressed to bring up a Menu.
	Draggable Popup [Tip/Trick] 5 Jan 2017 Updated: 5 Jan 2017 Rating: 5.00/5 Votes: 7 Popularity: 4.23 Licence: CPOL Views: 12,242 Bookmarked: 6 Downloaded: 478 Please Sign up or sign in to vote. This is a simple popup that includes drag capability. The code should be helpful to anyone looking to create a control drag capability.
	WPF Paged UniformGrid ItemsControl [Tip/Trick] 7 Feb 2017 Updated: 7 Feb 2017 Rating: 5.00/5 Votes: 7 Popularity: 4.23 Licence: CPOL Views: 17,424 Bookmarked: 5 Downloaded: 662 Please Sign up or sign in to vote. This tip presents a control that is derived from the ItemsControl that uses a UniformGrid to display.
	Simple Behavior to Allow Zooming and Dragging a Contained Control [Tip/Trick] 16 Aug 2017 Updated: 16 Aug 2017 Rating: 5.00/5 Votes: 9 Popularity: 4.77 Licence: CPOL Views: 7,122 Bookmarked: 8 Downloaded: 168 Please Sign up or sign in to vote. This is a simple behavior that can be attached to a ContentControl and allows zooming and dragging the Content.
	WPF RadioButton Switched Content Control [Tip/Trick] 2 Sep 2017 Updated: 2 Sep 2017 Rating: 5.00/5 Votes: 5 Popularity: 3.49 Licence: CPOL Views: 8,700 Bookmarked: 8 Downloaded: 97 Please Sign up or sign in to vote. Presents a very simple control with an IsChecked property that allows definition of two different contents depending of if IsChecked property value is true or false
	SelectedItems Behavior for ListBox and MultiSelector [Tip/Trick] 26 Sep 2017 Updated: 26 Sep 2017 Rating: 5.00/5 Votes: 12 Popularity: 5.21 Licence: CPOL Views: 16,812 Bookmarked: 10 Downloaded: 389 Please Sign up or sign in to vote. A behavior that allows the developer to bind an IList to SelectedItems of a ListBox or MultiSelector.
	A WPF CheckBox ListBox [Tip/Trick] 11 Oct 2017 Updated: 11 Oct 2017 Rating: 5.00/5 Votes: 11 Popularity: 5.21 Licence: CPOL Views: 40,890 Bookmarked: 17 Downloaded: 2,185 Please Sign up or sign in to vote. This tip presents a way to display checkboxes for selection of ListBox Items instead of the default highlighting
	WPF Exclusive CheckBox Behavior [Tip/Trick] 12 Oct 2017 Updated: 12 Oct 2017 Rating: 4.81/5 Votes: 9 Popularity: 4.59 Licence: CPOL Views: 8,370 Bookmarked: 9 Downloaded: 94 Please Sign up or sign in to vote. A Behavior is presented that will ensure that only one Checkbox will be checked within the visual tree of the control to which this behavior is attached
	WPF Exclusive CheckBox Behavior with GroupName [Tip/Trick] 17 Oct 2017 Updated: 17 Oct 2017 Rating: 5.00/5 Votes: 6 Popularity: 3.89 Licence: CPOL Views: 10,760 Bookmarked: 9 Downloaded: 158 Please Sign up or sign in to vote. A Behavior is presented that will ensure that only one CheckBox (ToggleButton) will be checked with the same GroupName within the visual tree of the control to which this behavior is attached.
	Using Style instead of UserControl in WPF [Tip/Trick] 3 Nov 2017 Updated: 3 Nov 2017 Rating: 4.94/5 Votes: 8 Popularity: 4.46 Licence: CPOL Views: 13,814 Bookmarked: 8 Downloaded: 190 Please Sign up or sign in to vote. This tip shows how easy it is to create a Style with DependencyProperty definitions and avoid the much heavier UserControl
	Expander Control with On/Off Content using RadioButton Control [Tip/Trick] 1 Apr 2018 Updated: 1 Apr 2018 Rating: 5.00/5 Votes: 3 Popularity: 2.39 Licence: CPOL Views: 5,360 Bookmarked: 9 Downloaded: 48 Please Sign up or sign in to vote. This is a control that is like a Expander Control but there is both Expanded and not Expanded Content. It demonstrates some concepts on how to easily create controls whose functionality can be mostly implemented in the XAML with the code behind being mostly DependencyProperty definitions.
	Using an IValueConverter in a WPF MVVM application to select a UserControl/View [Tip/Trick] 5 Sep 2012 Updated: 5 Sep 2012 Rating: 4.57/5 Votes: 7 Popularity: 3.86 Licence: CPOL Views: 26,043 Bookmarked: 10 Downloaded: 461 Please Sign up or sign in to vote. The IValueConverter can be used to select a View.
	Using a TestValueConverter to Understand a Bound Object [Tip/Trick] 21 Nov 2015 Updated: 21 Nov 2015 Rating: 5.00/5 Votes: 4 Popularity: 3.01 Licence: CPOL Views: 15,357 Bookmarked: 5 Downloaded: 0 Please Sign up or sign in to vote. Using a breakpoint in this WPF Value Converter which basically does nothing can be of assistance in binding when the object is not well understood.
	Binding a Text to Multiple Sources [Tip/Trick] 27 Apr 2016 Updated: 27 Apr 2016 Rating: 5.00/5 Votes: 7 Popularity: 4.23 Licence: CPOL Views: 10,990 Bookmarked: 3 Downloaded: 48 Please Sign up or sign in to vote. This article presents a way to display a message in a single control with several sources in a priority order
	WPF Display Value Converter [Tip/Trick] 23 Jun 2016 Updated: 23 Jun 2016 Rating: 4.38/5 Votes: 8 Popularity: 3.95 Licence: CPOL Views: 10,390 Bookmarked: 6 Downloaded: 101 Please Sign up or sign in to vote. This presents a simple converter that supports binding to an object, but display of a property in that class.
	WPF Updating Observable Collection [Tip/Trick] 29 Jun 2016 Updated: 29 Jun 2016 Rating: 4.92/5 Votes: 8 Popularity: 4.45 Licence: CPOL Views: 21,832 Bookmarked: 10 Downloaded: 223 Please Sign up or sign in to vote. This class based on the ObservableCollection supports updating instead of replacing
	Binding WPF TreeView TreeViewNode to Parent ViewModel [Tip/Trick] 2 Aug 2017 Updated: 2 Aug 2017 Rating: 5.00/5 Votes: 7 Popularity: 4.23 Licence: CPOL Views: 12,113 Bookmarked: 7 Downloaded: 339 Please Sign up or sign in to vote. Fairly straight forward way of binding in a HierarchicalDataTemplate or DataTemplate to the parent ViewModel when using the TreeView control.
	IValueConverter to Determine if Collection has Items [Tip/Trick] 11 Aug 2017 Updated: 11 Aug 2017 Rating: 4.75/5 Votes: 6 Popularity: 3.70 Licence: CPOL Views: 10,205 Bookmarked: 8 Downloaded: 140 Please Sign up or sign in to vote. Sometimes want to have some action in a View when there are no items or are items in a collection. It is very easy to do this with a converter and binding to the Collection's Count property
	WPF Concept for Attached Properties on a Binding [Tip/Trick] 10 Oct 2016 Updated: 10 Oct 2016 Rating: 3.82/5 Votes: 7 Popularity: 3.23 Licence: CPOL Views: 14,681 Bookmarked: 4 Downloaded: 87 Please Sign up or sign in to vote. This article presents a behavior that can be used to attach properties to a bound class.
	Thread Safe Improvement for ObservableCollection [Tip/Trick] 2 Jul 2012 Updated: 2 Jul 2012 Rating: 5.00/5 Votes: 5 Popularity: 3.49 Licence: CPOL Views: 56,597 Bookmarked: 11 Downloaded: 461 Please Sign up or sign in to vote. Why didn’t Microsoft provide this in the ObservableCollection?
	Number Only Behavior for WPF [Tip/Trick] 1 Oct 2015 Updated: 1 Oct 2015 Rating: 5.00/5 Votes: 11 Popularity: 5.21 Licence: CPOL Views: 33,934 Bookmarked: 17 Downloaded: 1,004 Please Sign up or sign in to vote. Presents a behavior to prevent entry of anything but digits into a control
XAML	Required Enumeration Validation Attribute [Tip/Trick] 5 Dec 2015 Updated: 5 Dec 2015 Rating: 4.38/5 Votes: 5 Popularity: 3.06 Licence: CPOL Views: 15,757 Bookmarked: 4 Downloaded: 87 Please Sign up or sign in to vote. This tip presents a ValidationAttribute that can be applied to enumeration properties. The normal RequiredValidationAttribute normally works but if numbers are assigned to the enumeration values, the default value is zero and that may not be valid.
	WPF Binding Window/UserControl to Self [Tip/Trick] 9 Apr 2018 Updated: 9 Apr 2018 Rating: 4.50/5 Votes: 6 Popularity: 3.50 Licence: CPOL Views: 23,724 Bookmarked: 8 Downloaded: 372 Please Sign up or sign in to vote. Shows how to set DataContext of View to itself using XAML and discusses the advantages of INotifyPropertyChanged to DependencyProperty
	Telerik RadGridView Selected and Hover Row Colors [Tip/Trick] 19 Dec 2015 Updated: 19 Dec 2015 Rating: 5.00/5 Votes: 4 Popularity: 3.01 Licence: CPOL Views: 17,782 Bookmarked: 5 Downloaded: 0 Please Sign up or sign in to vote. It is not straight forward to change the row selected and hover colors on the Telerik RadGridView. This is a ControlTemplate that works, and works with the detail pane.
Productivity Apps and Services
Microsoft Office	VBA Code for Parsing US Address Information [Tip/Trick] 25 May 2018 Updated: 25 May 2018 Rating: 5.00/5 Votes: 5 Popularity: 3.49 Licence: CPOL Views: 8,812 Bookmarked: 8 Downloaded: 0 Please Sign up or sign in to vote. VBA Code that will take a string and attempt to pull out the company name, street address, city, state, zip code, phone number, and web address
	Selecting and Importing Excel File and Sheet for import into Access [Tip/Trick] 7 Sep 2018 Updated: 7 Sep 2018 Rating: 5.00/5 Votes: 5 Popularity: 3.49 Licence: CPOL Views: 18,019 Bookmarked: 6 Downloaded: 1,190 Please Sign up or sign in to vote. This is a tip that has the code for selecting an Excel file and sheet for import into Microsoft Access. This includes the code required to browse for a file, and populate a ListBox with the sheets of the Excel Workbook, and the code to import an Excel spreadsheet.
Programming Languages
C#	Methods to Help Working with Services [Tip/Trick] 13 Jun 2018 Updated: 13 Jun 2018 Rating: 4.93/5 Votes: 8 Popularity: 4.46 Licence: CPOL Views: 4,620 Bookmarked: 11 Downloaded: 0 Please Sign up or sign in to vote. This is a set of methods to help in working with Services on the local machine.
	Video Player supporting Segment Definitions [Tip/Trick] 10 Aug 2020 Updated: 10 Aug 2020 Rating: 5.00/5 Votes: 1 Popularity: 0.00 Licence: CPOL Views: 3,321 Bookmarked: 2 Downloaded: 309 Please Sign up or sign in to vote. An application to define, save and watch segments of a video that I have selected
	Keep Alive Timer using DispatcherTimer [Tip/Trick] 26 Aug 2016 Updated: 26 Aug 2016 Rating: 4.75/5 Votes: 10 Popularity: 4.75 Licence: CPOL Views: 11,351 Bookmarked: 11 Downloaded: 124 Please Sign up or sign in to vote. A simple timer that will expire if it is not nudged within a certain time. This will cause an Action to be executed.
	Interesting Idea on Using a Func<string> [Tip/Trick] 27 Apr 2016 Updated: 27 Apr 2016 Rating: 4.08/5 Votes: 11 Popularity: 4.25 Licence: CPOL Views: 12,730 Bookmarked: 6 Downloaded: 0 Please Sign up or sign in to vote. I have used a Func to set the value of a property.
	BackgroundWorker Helper using Lambda Expressions [Tip/Trick] 8 Jun 2012 Updated: 8 Jun 2012 Rating: 5.00/5 Votes: 9 Popularity: 4.77 Licence: CPOL Views: 14,950 Bookmarked: 13 Downloaded: 269 Please Sign up or sign in to vote. You can implement BackgroundWorker using Lambdas without any sort of helper class very easily.
	Quick and Dirty TreeView [Tip/Trick] 25 Mar 2013 Updated: 25 Mar 2013 Rating: 4.25/5 Votes: 8 Popularity: 3.84 Licence: CPOL Views: 10,691 Bookmarked: 8 Downloaded: 67 Please Sign up or sign in to vote. Design to create a simple tree view that can be copy and pasted
	Helper for Serializing to a String [Tip/Trick] 11 Jul 2013 Updated: 11 Jul 2013 Rating: 3.86/5 Votes: 8 Popularity: 3.48 Licence: CPOL Views: 15,881 Bookmarked: 12 Downloaded: 111 Please Sign up or sign in to vote. Helper for serializing objects to a string
	Serializing to a File [Tip/Trick] 25 Jul 2013 Updated: 30 Jul 2013 Rating: 4.59/5 Votes: 35 Popularity: 6.85 Licence: CPOL Views: 63,854 Bookmarked: 50 Downloaded: 630 Please Sign up or sign in to vote. Helper for serializing objects in XML or binary and saving to a file
	A Converter (TryParse) Concept for Properties [Tip/Trick] 15 Mar 2016 Updated: 15 Mar 2016 Rating: 4.64/5 Votes: 12 Popularity: 4.84 Licence: CPOL Views: 13,100 Bookmarked: 8 Downloaded: 10 Please Sign up or sign in to vote. There is a Parse and TryParse for fields, but they cannot be used for properties. Here is a concept to create TryParse that will work for properties.
	WPF WebBrowser Control Enhancements [Tip/Trick] 28 Nov 2016 Updated: 28 Nov 2016 Rating: 5.00/5 Votes: 8 Popularity: 4.52 Licence: CPOL Views: 16,051 Bookmarked: 7 Downloaded: 788 Please Sign up or sign in to vote. The WPF WebBrower control leaves a lot to be desired.
	C# Linq GroupBy ExtensionMethod Explained [Tip/Trick] 17 May 2018 Updated: 17 May 2018 Rating: 3.70/5 Votes: 8 Popularity: 3.34 Licence: CPOL Views: 10,992 Bookmarked: 14 Downloaded: 89 Please Sign up or sign in to vote. This tip provides examples of how to use the different arguments of the Linq GroupBy extension method.

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Clifford Nelson

	Software Developer (Senior) Clifford Nelson Consulting
	United States

Has been working as a C# developer on contract for the last several years, including 3 years at Microsoft. Previously worked with Visual Basic and Microsoft Access VBA, and have developed code for Word, Excel and Outlook. Started working with WPF in 2007 when part of the Microsoft WPF team. For the last eight years has been working primarily as a senior WPF/C# and Silverlight/C# developer. Currently working as WPF developer with BioNano Genomics in San Diego, CA redesigning their UI for their camera system. he can be reached at qck1@hotmail.com.

Articles by Clifford Nelson (Articles: 50, Tip/Tricks: 62)

Articles: 50, Tip/Tricks: 62

Average article rating: 4.87

Desktop Programming

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Programming Languages

Web Development