Gets or sets a value indicating whether to catch calls on the wrong thread that access a control's Handle property when an application is being debugged.
(in System.Windows.Forms.dll)
Visual Basic (Declaration)
<BrowsableAttribute(False)> _
Public Shared Property CheckForIllegalCrossThreadCalls As Boolean
Dim value As Boolean
value = Control.CheckForIllegalCrossThreadCalls
Control.CheckForIllegalCrossThreadCalls = value
[BrowsableAttribute(false)]
public static bool CheckForIllegalCrossThreadCalls { get; set; }
[BrowsableAttribute(false)]
public:
static property bool CheckForIllegalCrossThreadCalls {
bool get ();
void set (bool value);
}
public static function get CheckForIllegalCrossThreadCalls () : boolean
public static function set CheckForIllegalCrossThreadCalls (value : boolean)
Property Value
Type:
System..::.Boolean
true if calls on the wrong thread are caught; otherwise, false.
When a thread other than the creating thread of a control tries to access one of that control's methods or properties, it often leads to unpredictable results. A common invalid thread activity is a call on the wrong thread that accesses the control's Handle property. Set CheckForIllegalCrossThreadCalls to true to find and diagnose this thread activity more easily while debugging. Note that illegal cross-thread calls will always raise an exception when an application is started outside the debugger.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
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, 2.0
Reference