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.NET Development
.NET Framework 3.5
System.IO Namespace
Stream Class
Stream Properties
 CanSeek Property
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This page is specific to
Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:
.NET Framework Class Library
Stream..::.CanSeek Property

When overridden in a derived class, gets a value indicating whether the current stream supports seeking.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)
Visual Basic (Declaration)
Public MustOverride ReadOnly Property CanSeek As Boolean
Visual Basic (Usage)
Dim instance As Stream
Dim value As Boolean

value = instance.CanSeek
C#
public abstract bool CanSeek { get; }
Visual C++
public:
virtual property bool CanSeek {
    bool get () abstract;
}
JScript
public abstract function get CanSeek () : boolean

Property Value

Type: System..::.Boolean
true if the stream supports seeking; otherwise, false.

For an example of creating a file and writing text to a file, see How to: Write Text to a File. For an example of reading text from a file, see How to: Read Text from a File. For an example of reading from and writing to a binary file, see How to: Read and Write to a Newly Created Data File.

If a class derived from Stream does not support seeking, calls to Length, SetLength, Position, and Seek throw a NotSupportedException.

If the stream is closed, this property returns false.

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, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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