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• WPF HierarchicalDataTemplates and Master-Detail Data Display

  Introduction For some reason, I struggled with HierarchicalDataTemplates when I first tried to use them. Although I understood the overall theory that they walk the data tree and can create formatted, nested output, I always seemed to spend an inordinately... Posted Nov 14 2009, 06:38 PM by XTab with | with no comments Filed under: XAML, WPF, .NET, Visual Basic.NET, Visual Basic, Resources, DataBinding, DataTemplate, Visual Basic DataBinding, Visual Basic WPF, TreeView, HierarchicalDataTemplate

• Grouping the Two Line TreeView Items

  In this earlier blog I described how to change the visibility of a line in a TreeView which has TreeViewItems that consist of two lines each. The original requirement also included grouping the entries under the different Categories. I purposely didn't... Posted Nov 09 2009, 07:43 AM by XTab with | with 1 comment(s) Filed under: XAML, WPF, .NET, VB.NET, Visual Basic.NET, Visual Basic, ElementHost, DataBinding, DataTemplate, Visual Basic DataBinding, ValueConverter, Visual Basic WPF, Windows Forms, TreeView

• Controlling TreeView Item Visibility

  An interesting question came up recently, where someone wanted to have a TreeView in which: Each TreeViewItem consisted of two separate lines of content but the second line may be hidden, depending on its content. This was actually a Windows Forms question... Posted Nov 06 2009, 12:37 AM by XTab with | with 1 comment(s) Filed under: XAML, WPF, Interop, Windows Forms, .NET, VB.NET, Visual Basic.NET, Visual Basic, ElementHost, DataBinding, DataTemplate, Visual Basic DataBinding, ValueConverter, Visual Basic WPF, TreeView

• Create and Use a WPF Custom Command - Follow-Up

  In this earlier blog , I explained how you can create and use a Command to carry out a task based on a variety of user actions. These actions included key presses, mouse actions and key/mouse combinations, as well as clicking on WPF controls. At the time... Posted Nov 03 2009, 05:09 PM by XTab with | with no comments Filed under: XAML, WPF, Commands, .NET, VB.NET, Visual Basic, Visual Basic WPF, Custom Command

• How To Create and Use a Custom Command in WPF

  I've got to be honest and admit up front that initially I wasn't completely sold on the idea that WPF Commands are the great leap forward that they are sometimes billed as. OK, so I get that they can reduce the repetition of event handling code... Posted Nov 02 2009, 04:45 AM by XTab with | with no comments Filed under: XAML, WPF, Commands, .NET, Visual Basic, Visual Basic WPF, Custom Command

• How To Edit Items in a Windows Forms ListView

  As I was finishing off the previous blog item on the Windows Forms ListView, it occurred to me that there isn't much documentation around to explain how to edit the ListView items. So I thought it might be useful to cover a couple of approaches in... Posted Oct 29 2009, 12:52 PM by XTab with | with no comments Filed under: ListView, Visual Basic, Windows Forms

• WPF: How To Move Controls and Elements At Runtime

  XAML is brilliant for creating user interfaces at design time, but if you need to make changes dynamically at runtime, this can sometimes be a problem. To take an example, let's say that you need to allow an Image to move to a different location on... Posted Oct 26 2009, 11:16 PM by XTab with | with no comments Filed under: WPF, Visual Basic, GetValue, SetValue, Canvas

• Populating a WinForms ListView from a Text File

  The Windows Forms ListView is designed to display data. You can use a simple text file as the data source of a Windows Forms ListView. Let's start with a scenario where you have a txt file that contains the data. Each line of the text file represents... Posted Oct 25 2009, 05:20 PM by XTab with | with no comments Filed under: Windows Forms, ListView, File, Visual Basic, Read, Write

• Sorting and Grouping Items in a WPF ListBox - Part 2

  Introduction In the first part , I outlined the sample application and said that it: will create a collection of Person objects and databind them to a ListBox. will use very simple DataTemplates to format two properties of the Person class - FullName... Posted Sep 27 2009, 11:13 AM by XTab with | with no comments Filed under: WPF, Visual Basic, Sort, DataBinding, ListBox, Group

• How To Sort and Group ListItems in a WPF ListBox

  Introduction I was going to title this blog "What's in a name?" because William Shakespeare's famous question smacked me on the head recently after what seemed like several hours of frustration. The answer in this particular case is... Posted Sep 26 2009, 02:29 PM by XTab with | with 2 comment(s) Filed under: WPF, VB.NET, Visual Basic, DataBinding, Visual Basic WPF, ListBox, Grouping

• WPF ValueConverter Using Enumeration and Image Paths

  In the previous blogs on ValueConverters - here and here - the conversion was from Integer type to Brush. In this blog I will cover the situation where you want to include a small image or icon in the ListView. There are various alternatives here. You... Posted Sep 23 2009, 03:08 AM by XTab with | with 1 comment(s) Filed under: WPF, .NET, ListView, Visual Basic, DataBinding, ValueConverter, Enumeration

• How To Insert Row Divider Lines in a WPF ListView

  If you have read any of my previous ListView blogs, you will know that formatting the ListView is mostly a matter of creating templates and styles for the various sub-elements. The same applies if you want to do something to differentiate one row from... Posted Sep 21 2009, 07:24 AM by XTab with | with no comments Filed under: WPF, ListView, Visual Basic

• More Complex Conversions with the WPF MultiBinding Converter

  In the previous blog , I created a simple ValueConverter that analyzed the data bound values and set the Foreground color of a TextBlock based on whether the value was less or more than a cut off value of 200 units. In reality, these preset values (such... Posted Sep 20 2009, 04:14 PM by XTab with | with 3 comment(s) Filed under: WPF, ListView, VB.NET, Visual Basic, DataBinding, ValueConverter, Visual Basic MultiBinding

• Using a ValueConverter in WPF

  The Story So Far Each of my previous blog items on WPF ListViews has mostly used a collection of DrinkProduct objects as the data source. This collection is bound to the Window via a DataContext and the individual columns are bound to fields in the collection... Posted Sep 20 2009, 03:29 PM by XTab with | with 3 comment(s) Filed under: WPF, ListView, VB.NET, Visual Basic, DataBinding, ValueConverter

• Visual Studio 2010 XAML Intellisense and Other Improvements

  Sometimes it's the tiniest little changes that make you happy out of all proportion to the size of the change. While testing the WPF features in VS2010 I was totally thrilled to discover that at last when you type in the opening curly brace in the... Posted Sep 15 2009, 03:38 PM by XTab with | with no comments Filed under: WPF, Visual Basic, Visual Studio 2010