DeflateStream类的Read方法怎么才能不出现“数据流的格式无效”错误

#include <iostream>
#include <cstdlib>

#using <System.dll>

using namespace std;
using namespace System;
using namespace System::IO;
using namespace System::IO::Compression;

array<unsigned char> ^DecompressData(array<unsigned char> ^CompressedBytes);

int main()
{
    array<unsigned char> ^result, ^buffer;
    int i;
    buffer = gcnew array<unsigned char>(26);
    for (i = 0; i < 26; ++i)
        buffer[i] = (unsigned char)(i + 65);
    for (i = 0; i < 26; ++i)
        cout << buffer[i] << '\t';
    cout << endl;
    result = DecompressData(buffer);
    if (result[0] != 0)
    {
        for (i = 0; i < result->Length; ++i)
            cout << result[i] << '\t';
    }
    cout << endl;
    system("pause");
    return 0;
}

array<unsigned char> ^DecompressData(array<unsigned char> ^CompressedBytes)
{
    MemoryStream ^Memory;
    DeflateStream ^Unzip;
    array<unsigned char> ^temp;
    array<unsigned char> ^DecompressBytes;
    int length;

    try
    {
        Memory = gcnew MemoryStream();
        Memory->Position = 0;
        temp = gcnew array<unsigned char>(1024);

        Unzip = gcnew DeflateStream(gcnew MemoryStream(CompressedBytes), CompressionMode::Decompress, false);

        length = Unzip->Read(temp, 0, 4);
        Unzip->Flush();
        length = 0;
        do
        {
            length = Unzip->Read(temp, 0, temp->Length);
            Memory->Write(temp, 0, length);
            Unzip->Flush();
        } while (length != 0);
        Unzip->Close();

        DecompressBytes = Memory->ToArray();
        Console::WriteLine(DecompressBytes);
        Memory->Close();

        return DecompressBytes;
    }
    catch (ArgumentNullException ^)
    {
        Console::WriteLine("array为null引用");
    }
    catch (ObjectDisposedException ^)
    {
        Console::WriteLine("流已关闭。");
    }
    catch (InvalidOperationException ^)
    {
        Console::WriteLine("创建对象时CompressionMod值是Compress。基础流不支持读取。");
    }
    catch (ArgumentOutOfRangeException ^)
    {
        Console::WriteLine("offset或count小于零。array长度减去索引起始点小于count。");
    }
    catch (InvalidDataException ^)
    {
        Console::WriteLine("数据的格式无效。");
    }
    catch (...)
    {
        Console::WriteLine("Something else went wrong in function DecompressData()");
    }
    return gcnew array<unsigned char>(CompressedBytes->Length);
}