对象“respStream”可以

Question

我使用C＃代码分析处置不止一次方法，得到了以下错误：

Object 'respStream' can be disposed more than once in method 'QRadarPublisher.AnalyzeResponse(HttpWebResponse)'. To avoid generating a System.ObjectDisposedException you should not call Dispose more than one time on an object.: Lines: 116

这是代码：

using (Stream respStream = webResponse.GetResponseStream()) 
{ 
    using (var tStreamReader = new StreamReader(respStream)) 
    { 

     try 
     { 
      //My Code 
     } 
     catch (Exception ex) 
     { 
      //My Code 
     } 
    } 
}//The error is for this brace 

哪有我解决了这个错误？

Answer 1

你总是可以摆脱第一“使用”块：

 Stream respStream = null; 
     try 
     { 
      respStream = webResponse.GetResponseStream(); 
      using(var tStreamReader = new StreamReader(respStream)) 
      { 
    // If this line is reached you don't need to call Dispose manually on respStream 
    // so you set it to null 

       respStream = null; 
       try 
       { 
       //My Code 
       } 
       catch(Exception ex) 
       { 
       //My Code 
       } 
      } 
     } 
     finally 
     { 
// if respStream is not null then the using block did not dispose it 
// so it needs to be done manually: 
      if(null != respStream) 
       respStream.Dispose(); 
     }