触发从PageMethod下载.好,不正确的

本文关键字：不正确 下载 PageMethod | 更新日期: 2023-09-27 18:06:23

我试图触发从PageMethod下载XML文件流。我遵循这里的文档

[WebMethod]
public static bool Export()
{
    bool successful = false;
    try
    {
        HttpContext.Current.Response.ContentType = "text/xml";
        HttpContext.Current.Response.ClearHeaders();
        HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename=Dashboard.xml");
        HttpContext.Current.Response.Clear();
        HttpContext.Current.Response.BufferOutput = true;
        SerializableDictionary<string, string> dataToSave = new SerializableDictionary<string, string>();
        foreach( var state in StateManager.StateDictionary)
        {
            var sessionItem = SessionRepository.Instance.GetSession(state.Value);
            if (Equals(sessionItem, null)) continue;
            using( MemoryStream memoryStream = new MemoryStream())
            {
                XmlSerializer serializer = new XmlSerializer(sessionItem.GetType());
                serializer.Serialize(memoryStream, sessionItem);
                dataToSave.Add(state.Value, Convert.ToBase64String(memoryStream.ToArray()));
            }
        }
        XmlSerializer xmlSerializer = new XmlSerializer(dataToSave.GetType());
        using( MemoryStream memoryStream = new MemoryStream())
        {
            xmlSerializer.Serialize(memoryStream, dataToSave);
            HttpContext.Current.Response.AppendHeader("Content-Length", memoryStream.Length.ToString());
            memoryStream.Position = 0;
            using( StreamReader streamReader = new StreamReader(memoryStream))
            {
                HttpContext.Current.Response.Write(streamReader.ReadToEnd());
            }
        }
        HttpContext.Current.Response.Flush();
        successful = true;
    }
    catch (Exception exception)
    {
        _logger.ErrorFormat("Unable to serialize session. Reason: {0}", exception.Message);
    }
    return successful;
}

没有收到任何警告或错误。刚刚成功完成，没有下载。

编辑:我已经尝试了application/xml和text/plain作为ContentTypes，以及

触发从PageMethod下载.好,不正确的

您需要设置响应头:

Response.AddHeader("content-disposition","attachment; filename=fname.ext")
Response.AddHeader("Content-Length", data.Length.ToString())
相关文章：