Gets a collection of application-scope properties.
(in PresentationFramework.dll)
Visual Basic (Declaration)
Public ReadOnly Property Properties As IDictionary
Dim instance As Application
Dim value As IDictionary
value = instance.Properties
public IDictionary Properties { get; }
public:
property IDictionary^ Properties {
IDictionary^ get ();
}
public function get Properties () : IDictionary
You cannot set this property in XAML.
Application exposes a dictionary via Properties which you can use to store application-scope properties. This allows you to share state amongst all code in an AppDomain in a thread-safe fashion, without the need to write your own state code.
Properties stored in Properties must be converted to the appropriate type returned.
TheProperties property is thread safe and is available from any thread.
The following example shows how create and use an application-scope property using Properties.
<Application x:Class="CSharp.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
StartupUri="MainWindow.xaml"
Startup="App_Startup"
>
</Application>
using System;
using System.Windows;
namespace CSharp
{
public partial class App : Application
{
void App_Startup(object sender, StartupEventArgs e)
{
// Parse command line arguments for "/SafeMode"
this.Properties["SafeMode"] = false;
for (int i = 0; i != e.Args.Length; ++i)
{
if (e.Args[i].ToLower() == "/safemode")
{
this.Properties["SafeMode"] = true;
break;
}
}
}
}
}
<Window x:Class="CSharp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Loaded="MainWindow_Loaded"
>
<Grid>
...
</Grid>
</Window>
using System;
using System.Windows;
using System.Windows.Controls;
namespace CSharp
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
void MainWindow_Loaded(object sender, EventArgs e)
{
// Check for safe mode
if ((bool)Application.Current.Properties["SafeMode"] == true)
{
this.Title += " [SafeMode]";
}
}
}
}
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0
Reference