I've created a simple WPFApplication project that produce this error
This is the exact error:
Could not find file
'C:\Users\Andrei\AppData\Local\Microsoft\VisualStudio\11.0\Designer\ShadowCache\dj2szrx3.5nm\e412xqna.uj1\Locality.xml'. E:\BugDemo2\BugDemo2\MainWindow.xaml 7 9 BugDemo2
MainWindow.xaml
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication1"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" x:Class="MainWindow"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<!--This is the line that Visual Studio says it produce the error -->
<local:MainWindowViewModel x:Key="MainWindowViewModelDataSource" d:IsDataSource="True"/>
</Window.Resources>
<Grid DataContext="{Binding Source={StaticResource MainWindowViewModelDataSource}}"/>
</Window>
MainWindowViewModel.vb
Imports System.Data
Imports System.IO
Public Class MainWindowViewModel
Shared ds As New DataSet("Locality")
Public Sub New()
MySub()
End Sub
Sub MySub()
'this is the line that actually gives the error
ds.ReadXml(
Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly.Location) &
"\Locality.xml")
MsgBox(ds.Tables.Count)
End Sub
End Class
I have nothing in the code behind MainWindow.xaml.vb
Class MainWindow
End Class
The program does exactly what it is supposed to do, it loads Locality.xml to dataset correctly and shows how many tables are in it.
If I move the ds variable in another module, or in another class, as a shared property I get
Object reference not set to an instance of an object
also as a Designtime only error.
I understand that Visual Studio doesn't know if Locality.xml, but why does it care and how do I make this error go away?