在这种情况下，如果你真的想在MemoryStream中简单地使用ReadToEnd方法，你可以使用这个扩展方法来实现:

public static class SetExtensions
{
    public static string ReadToEnd(this MemoryStream BASE)
    {
        BASE.Position = 0;
        StreamReader R = new StreamReader(BASE);
        return R.ReadToEnd();
    }
}

你可以这样使用这个方法:

using (MemoryStream m = new MemoryStream())
{
    //for example i want to serialize an object into MemoryStream
    //I want to use XmlSeralizer
    XmlSerializer xs = new XmlSerializer(_yourVariable.GetType());
    xs.Serialize(m, _yourVariable);

    //the easy way to use ReadToEnd method in MemoryStream
    MessageBox.Show(m.ReadToEnd());
}

在这种情况下，如果你真的想在MemoryStream中简单地使用ReadToEnd方法，你可以使用这个扩展方法来实现:

public static class SetExtensions
{
    public static string ReadToEnd(this MemoryStream BASE)
    {
        BASE.Position = 0;
        StreamReader R = new StreamReader(BASE);
        return R.ReadToEnd();
    }
}

你可以这样使用这个方法:

using (MemoryStream m = new MemoryStream())
{
    //for example i want to serialize an object into MemoryStream
    //I want to use XmlSeralizer
    XmlSerializer xs = new XmlSerializer(_yourVariable.GetType());
    xs.Serialize(m, _yourVariable);

    //the easy way to use ReadToEnd method in MemoryStream
    MessageBox.Show(m.ReadToEnd());
}

以前的解决方案在涉及编码的情况下不起作用。这是一个“现实生活”的例子，如何正确地做到这一点…

using(var stream = new System.IO.MemoryStream())
{
  var serializer = new DataContractJsonSerializer(typeof(IEnumerable<ExportData>),  new[]{typeof(ExportData)}, Int32.MaxValue, true, null, false);               
  serializer.WriteObject(stream, model);  


  var jsonString = Encoding.Default.GetString((stream.ToArray()));
}

只使用方法Convert。ToBase64String

Convert.ToBase64String(inputStream.ToArray());

我需要集成一个类，需要一个流写在它:

XmlSchema schema;
// ... Use "schema" ...

var ret = "";

using (var ms = new MemoryStream())
{
    schema.Write(ms);
    ret = Encoding.ASCII.GetString(ms.ToArray());
}
//here you can use "ret"
// 6 Lines of code

我创建了一个简单的类，可以帮助减少多次使用的代码行:

public static class MemoryStreamStringWrapper
{
    public static string Write(Action<MemoryStream> action)
    {
        var ret = "";
        using (var ms = new MemoryStream())
        {
            action(ms);
            ret = Encoding.ASCII.GetString(ms.ToArray());
        }

        return ret;
    }
}

然后可以用一行代码替换示例

var ret = MemoryStreamStringWrapper.Write(schema.Write);

byte[] array = Encoding.ASCII.GetBytes("MyTest1 - MyTest2");
MemoryStream streamItem = new MemoryStream(array);

// convert to string
StreamReader reader = new StreamReader(streamItem);
string text = reader.ReadToEnd();