如何下載XML內容的XML文件

Question

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How to download xml file in asp.net using C#

誰能請幫助如何下載XML（這是字符串）。我正在使用MVC3

mycode的;

public FileResult Download(string id) 
    { 
     var model = service.GetAllDefinitions().First(x => x.ID == id); 
     var definitionDetails = new StatisticDefinitionModel(model); 
     string xmlString = definitionDetails.ToXml; 
    //string presented xml 

     string fileName = definitionDetails.Name + ".xml"; 

      var stream = new MemoryStream(); 

      var writer = XmlWriter.Create(stream); 
      writer.WriteRaw(xmlString); 
      stream.Position = 0; 
      var fileStreamResult = File(stream, "application/xml", fileName); 
      return fileStreamResult; 

    } 

但這不working.gives錯誤

錯誤：

XML文檔必須有一個頂層元素。處理資源時出錯

謝謝，

Answer 1

這裏不需要xml流，只是返回字節。

public FileResult Download(string id) 
{ 
    var model = service.GetAllDefinitions().First(x => x.ID == id); 
    var definitionDetails = new StatisticDefinitionModel(model); 
    string xmlString = definitionDetails.ToXml; 
    string fileName = definitionDetails.Name + ".xml"; 


    return File(Encoding.UTF8.GetBytes(xmlString), "application/xml", fileName); 
}