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11/18/2011

EndOfStreamException Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

The exception that is thrown when reading is attempted past the end of a stream.

Inheritance Hierarchy

System.Object
  System.Exception
    System.SystemException
      System.IO.IOException
        System.IO.EndOfStreamException

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
<ComVisibleAttribute(True)> _
Public Class EndOfStreamException _
    Inherits IOException

[ComVisibleAttribute(true)]
public class EndOfStreamException : IOException

The EndOfStreamException type exposes the following members.

Constructors

	Name	Description
	EndOfStreamException()	Initializes a new instance of the EndOfStreamException class with its message string set to a system-supplied message.
	EndOfStreamException(String)	Initializes a new instance of the EndOfStreamException class with its message string set to message and its HRESULT set to COR_E_ENDOFSTREAM.
	EndOfStreamException(String, Exception)	Initializes a new instance of the EndOfStreamException class with a specified error message and a reference to the inner exception that is the cause of this exception.

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Properties

	Name	Description
	Data	Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
	HResult	Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
	InnerException	Gets the Exception instance that caused the current exception. (Inherited from Exception.)
	Message	Gets a message that describes the current exception. (Inherited from Exception.)
	StackTrace	Gets a string representation of the frames on the call stack at the time the current exception was thrown. (Inherited from Exception.)

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Methods

	Name	Description
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetBaseException	When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the runtime type of the current instance. (Inherited from Exception.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Creates and returns a string representation of the current exception. (Inherited from Exception.)

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Remarks

EndOfStreamException uses the HRESULT COR_E_ENDOFSTREAM which has the value 0x80070026.

Examples

The following code example shows how to read and write Double data to memory by using the BinaryReader and BinaryWriter classes on top of the MemoryStream class.

Note:
To run this example, see Building Examples That Use a Demo Method and a TextBlock Control.

Imports System.IO

Public Class Example

   Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)

      Dim i As Integer
      Const upperBound As Integer = 1000

      ' Create random data to write to the stream.
      Dim dataArray(upperBound) As Double
      Dim randomGenerator As New Random()
      For i = 0 To upperBound
         dataArray(i) = 100.1 * randomGenerator.NextDouble()
      Next i

      Dim binWriter As New BinaryWriter(New MemoryStream())
      Try

         ' Write data to the stream.
         outputBlock.Text &= "Writing data to the stream." & vbCrLf

         For i = 0 To upperBound
            binWriter.Write(dataArray(i))
         Next i

         ' Create a reader using the stream from the writer.
         Dim binReader As New BinaryReader(binWriter.BaseStream)

         ' Return to the beginning of the stream.
         binReader.BaseStream.Position = 0

         ' Read and verify the data.
         Try
            outputBlock.Text &= "Verifying the written data." & vbCrLf
            For i = 0 To upperBound
               If binReader.ReadDouble() <> dataArray(i) Then
                  outputBlock.Text &= "Error writing data." & vbCrLf
                  Exit For
               End If
            Next i
            outputBlock.Text &= "The data was written and verified." & vbCrLf
         Catch ex As EndOfStreamException
            outputBlock.Text &= String.Format("Error writing data: {0}.", _
                ex.GetType().Name) & vbCrLf
         End Try
      Finally
         binWriter.Close()
      End Try

   End Sub
End Class

using System;
using System.IO;

class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      int i;
      const int arrayLength = 1000;

      // Create random data to write to the stream.
      Random randomGenerator = new Random();
      double[] dataArray = new double[arrayLength];
      for (i = 0; i < arrayLength; i++)
      {
         dataArray[i] = 100.1 * randomGenerator.NextDouble();
      }

      using (BinaryWriter binWriter =
          new BinaryWriter(new MemoryStream()))
      {
         // Write the data to the stream.
         outputBlock.Text += "Writing data to the stream." + "\n";
         for (i = 0; i < arrayLength; i++)
         {
            binWriter.Write(dataArray[i]);
         }

         // Create a reader using the stream from the writer.
         using (BinaryReader binReader =
             new BinaryReader(binWriter.BaseStream))
         {
            try
            {
               // Return to the beginning of the stream.
               binReader.BaseStream.Position = 0;

               // Read and verify the data.
               outputBlock.Text += "Verifying the written data." + "\n";
               for (i = 0; i < arrayLength; i++)
               {
                  if (binReader.ReadDouble() != dataArray[i])
                  {
                     outputBlock.Text += "Error writing data." + "\n";
                     break;
                  }
               }
               outputBlock.Text += "The data was written " +
                   "and verified." + "\n";
            }
            catch (EndOfStreamException e)
            {
               outputBlock.Text += String.Format("Error writing data: {0}.",
                   e.GetType().Name) + "\n";
            }
         }
      }
   }
}

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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