在VB.Net中将MemoryStream转换为字节数组

Public Sub saveAsTemplate_Click(ByVal sender As Object, ByVal e As System.EventArgs)

    Dim ms As MemoryStream = New MemoryStream()
    richEditControl1.SaveDocument(ms, DocumentFormat.Rtf)
    GetStreamAsByteArray(ms)

    MessageBox.Show("save")

End Sub

Private Function GetStreamAsByteArray(ByVal stream As MemoryStream) As Byte()

    Dim streamLength As Integer = Convert.ToInt32(stream.Length)

    Dim fileData As Byte() = New Byte(streamLength) {}

    ' Read the file into a byte array
    stream.Read(fileData, 0, streamLength)
    stream.Flush()
    stream.Close()

    Return fileData

End Function

生成流时我可以获得流长度,但最终的咬合数组只包含0,使其无效.我怎样才能获得正确的字节数组？

此外,您正在使用Read方法错误.它返回读取的字节数,可能小于请求的字节数.要正确使用它,您需要循环,直到获得流中的所有字节.

但是,您应该只使用ToArray方法将流中的所有内容作为字节数组获取：

Private Function GetStreamAsByteArray(ByVal stream As MemoryStream) As Byte()

  Return stream.ToArray()

End Function