DataGridCheckboxColumn two way binding
I got same problem with you ,here is my solution <CheckBox HorizontalAlignment=”Center” IsChecked=”{Binding BoolProperty, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}”/>
.net-3.5
Join collection of objects into comma-separated string
string.Join(“, “, Array.ConvertAll(somelist.ToArray(), i => i.ToString()))
check against: null vs default()?
There’s no difference. The default value of any reference type is null. MSDN’s C# reference page for default keyword: https://msdn.microsoft.com/en-us/library/25tdedf5.aspx.
Is nAnt still supported and suitable for .net 3.5/VS2008?
If you are quite happy with MSBuild, then I would stick with MSBuild. This may be one of those cases where the tool you learn first is the one you will prefer. I started with NAnt and can’t quite get used to MSBuild. I’m sure they will both be around for quite some time. There … Read more
Do you need both .net 3.5 and 4.0 installed or just .net 4?
I remember reading something once from Microsoft that stated: “.NET 4.0 adds in-process side-by-side compatibility with earlier versions of the Framework. This feature allows an application process to simultaneously run part of its code using the .NET Common Language Runtime (CLR) 4 and other parts using older versions of the CLR.” So to answer your … Read more
Why is my WPF textbox “kinda” readonly?
I was encountering a problem very similar to this. After doing a little research, I found a similar problem listed in MSDN: http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/c68d5f3c-c8cc-427d-82e3-6135d075a304/ According to the answer to the post, the problem has to do with WPF and WinForms having two very different ways of handling text input. Fortunately, the post listed above gives the … Read more
WPF: How to style or disable the default ContextMenu of a TextBox
To style ContextMenu’s for all TextBoxes, I would do something like the following: First, in the resources section, add a ContextMenu which you plan to use as your standard ContextMenu in a textbox. e.g. <ContextMenu x:Key=”TextBoxContextMenu” Background=”White”> <MenuItem Command=”ApplicationCommands.Copy” /> <MenuItem Command=”ApplicationCommands.Cut” /> <MenuItem Command=”ApplicationCommands.Paste” /> </ContextMenu> Secondly, create a style for your TextBoxes, which … Read more
Put WPF control into a Windows Forms Form?
Put an ElementHost control inside the panel. This control can then host a WPF element. From the WinForms designer, you can find this control under ‘WPF Interoperability’. First you may need to add WindowsFormsIntegration.dll to your project’s references. For an example, see Walkthrough: Hosting a WPF Composite Control in Windows Forms.
SqlParameter with default value set to 0 doesn’t work as expected
Use caution when you use this overload of the SqlParameter constructor to specify integer parameter values. Because this overload takes a value of type Object, you must convert the integral value to an Object type when the value is zero, as the following C# example demonstrates. Parameter = new SqlParameter(“@pname”, Convert.ToInt32(0)); If you do not … Read more
How to get distinct instance from a list by Lambda or LINQ
Both Marc‘s and dahlbyk‘s answers seem to work very well. I have a much simpler solution though. Instead of using Distinct, you can use GroupBy. It goes like this: var listDistinct = list.GroupBy( i => i.value1, (key, group) => group.First() ).ToArray(); Notice that I’ve passed two functions to the GroupBy(). The first is a key … Read more