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DirectorySearcher.Asynchronous Property

Gets or sets a value that indicates if the search is performed asynchronously.

Namespace:  System.DirectoryServices
Assembly:  System.DirectoryServices (in System.DirectoryServices.dll)

[DSDescriptionAttribute("DSAsynchronous")]
[ComVisibleAttribute(false)]
public bool Asynchronous { get; set; }

Property Value

Type: System.Boolean
true if the search is asynchronous; false otherwise.

An asynchronous search can show results as they are found while simultaneously searching for additional results. This is useful for tasks such as populating list boxes.

The default setting for this property is false.

The following C# example shows how to create an asynchronous search.

using System.DirectoryServices;
...
// Bind to the users container.
DirectoryEntry entry = new DirectoryEntry("LDAP://CN=users,DC=fabrikam,DC=com");
// Create a DirectorySearcher object.
DirectorySearcher mySearcher = new DirectorySearcher(entry);
//Set the Asynchronous property to true.
src.Asynchronous = true;
//Use the FindAll method to get search results.
SearchResultCollection res = src.FindAll();

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

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