Question

I have a C# WPF project, namespaced test. How should I name sub-namespaces in XAML?

<Window x:Class="test.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"      
    xmlns:local="clr-namespace:test"
    xmlns:local.c="clr-namespace:test.Converters"   
    xmlns:local.v="clr-namespace:test.Validators"       
    Title="MainWindow" Height="360" Width="640"> ....

Here I have a convention of separating the sub-packages with a period.. Is it okay?

Kind regards,

e.

Answer 1

The typical WPF application really doesn’t have a namespace convention for the XAML, other than the default xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml", the Blend design time namespace and xmlns:local which will typically refer to the current namespace.

In the scenario you described above, I’ve seen/used a few variants, i.e.,

<Window x:Class="test.MainWindow"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"      
  xmlns:local="clr-namespace:test"
  xmlns:c="clr-namespace:test.Converters"   
  xmlns:v="clr-namespace:test.Validators">

or

<Window x:Class="test.MainWindow"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"      
  xmlns:local="clr-namespace:test"
  xmlns:conv="clr-namespace:test.Converters"   
  xmlns:val="clr-namespace:test.Validators">

In the end, it’s really up to whatever you and your team agree upon.