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NegotiateStream.CanSeek Property

Gets a Boolean value that indicates whether the underlying stream is seekable.

Namespace:  System.Net.Security
Assembly:  System (in System.dll)

public override bool CanSeek { get; }

Property Value

Type: System.Boolean
This property always returns false.

You should not attempt to set the position of the NegotiateStream object or its underlying stream. The underlying stream is specified when you create an instance of the NegotiateStream class.

The following code example demonstrates displaying the value of this property.

static void DisplayStreamProperties(NegotiateStream stream)
{
     Console.WriteLine("Can read: {0}", stream.CanRead);
     Console.WriteLine("Can write: {0}", stream.CanWrite);
     Console.WriteLine("Can seek: {0}", stream.CanSeek);
     try 
     {
         // If the underlying stream supports it, display the length.
         Console.WriteLine("Length: {0}", stream.Length);
     } catch (NotSupportedException)
     {
             Console.WriteLine("Cannot get the length of the underlying stream.");
     }

     if (stream.CanTimeout)
     {
         Console.WriteLine("Read time-out: {0}", stream.ReadTimeout);
         Console.WriteLine("Write time-out: {0}", stream.WriteTimeout);
     }
}
    static void DisplayStreamProperties(NegotiateStream* stream)
{
        Console::WriteLine(S"Can read: {0}", __box(stream->CanRead));
        Console::WriteLine(S"Can write: {0}", __box(stream->CanWrite));
        Console::WriteLine(S"Can seek: {0}", __box(stream->CanSeek));
        try 
        {
            // If the underlying stream supports it, display the length.
            Console::WriteLine(S"Length: {0}", __box(stream->Length));
        } catch (NotSupportedException*)
        {
                Console::WriteLine(S"Cannot get the length of the underlying stream.");
        }

        if (stream->CanTimeout)
        {
            Console::WriteLine(S"Read time-out: {0}", __box(stream->ReadTimeout));
            Console::WriteLine(S"Write time-out: {0}", __box(stream->WriteTimeout));
        }
}

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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