Design-time failure: WPF, Usercontrols and Namespaces
- by Simon Woods
Hi
I have a very simple WPF project comprising a Window and Usercontrol. I'm very much in a learning phase. It works fine when I run it. However, I am unable to see the form in design time. The problem, I believe is something to do with namespaces, but I don't understand where. It may well be a simple error
Main Window XML
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:views="clr-namespace:UserLogin"
x:Class="UserLogin.MainView"
x:Name="MainViewWindow"
mc:Ignorable="d"
Title="Login"
Height="141"
Width="347"
>
<Grid>
<views:LoginView />
</Grid>
</Window>
Main Window CodeBehind
Imports Microsoft.VisualBasic
Imports System
Imports System.Windows
Imports UserLogin
Namespace UserLogin
Partial Public Class MainView
Inherits System.Windows.Window
Public Sub New()
InitializeComponent()
End Sub
End Class
End Namespace
Usercontrol XAML
<UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
x:Class="UserLogin.LoginView"
x:Name="LoginViewControl"
mc:Ignorable="d" d:DesignHeight="96" d:DesignWidth="298">
<Grid Height="96" Width="298">
<Button Command="{Binding OKCommand}" Height="21" Margin="0,0,90,16" Name="btnOK" VerticalAlignment="Bottom" HorizontalAlignment="Right" Width="76">OK</Button>
<Button Command="{Binding CancelCommand}" Height="21" HorizontalAlignment="Right" Margin="0,0,9,16" Name="btnCancel" VerticalAlignment="Bottom" Width="75">Cancel</Button>
<Label Height="23" HorizontalAlignment="Left" Margin="10,5,0,0" Name="Label1" VerticalAlignment="Top" Width="85">Name:</Label>
<Label HorizontalAlignment="Left" Margin="10,32,0,0" Name="Label2" Width="85" Height="29" VerticalAlignment="Top">Password:</Label>
<TextBox Margin="0,31,6,0" Name="txtPassword" Height="22" VerticalAlignment="Top" HorizontalAlignment="Right" Width="182" />
<ComboBox Height="22" Margin="110,6,6,0" Name="cboNames" VerticalAlignment="Top" />
</Grid>
</UserControl>
Usercontrol CodeBehind
Imports Microsoft.VisualBasic
Imports System
Imports UserLogin
Namespace UserLogin
Partial Public Class LoginView
Inherits System.Windows.Controls.UserControl
Public Sub New()
InitializeComponent()
End Sub
End Class
End Namespace
I think I'm missing something this namespace
xmlns:views="clr-namespace:UserLogin"
since intellisense doesn't give me the usercontrol declared within it in the XAML designer but rather reports the error "Unable to load the metadata for the assembly ... etc etc"
Thx for any suggestions
Simon
