How to convert file stream to memorystream using C#, DotNet

Convert document file stream to memory stream using C#, DotNet

#region "Description"

/*       

  Use method given in post to convert file stream to MemoryStream

 

*/      

#endregion

#region "Method"

/// <summary>

/// Converts fileStream to memorystream

/// </summary>

/// <param name="fileStream">document file stream</param>

/// <returns></returns>

 public  System.IO.MemoryStream ConvertFileStreamToMemoryStream(System.IO.FileStream fileStream)

{

    try

    {

        fileStream.Position = 0;

        System.IO.MemoryStream memoryStream = new  System.IO.MemoryStream();

        memoryStream.SetLength(fileStream.Length);

        fileStream.Read(memoryStream.GetBuffer(), 0, (int)fileStream.Length);

        memoryStream.Flush();

        fileStream.Close();

        //memoryStream.Close();

        return memoryStream;

    }

    catch

    {

    }

    return null;

}     

#endregion