C#-无法删除JSON中的反斜杠

我试图构造一个字符串,我想用它来更新JSON。

代码如下

  public string ConstructCylicLoop(string fieldName, int LoopCount, string BadDataLabel,string ImmediateParent)
    {
        string start = "";
        string fullbody = "";
        string end = "";
        string body = "";
        for (int i = 0; i < LoopCount; i++)
        {
            LoopTestData = (new ExcelUtilities().getAPITestData(ApplicationConfiguration.LoopSheetName));
            body = "";
            foreach (Dictionary<string, string> loopData in LoopTestData)
            {
                string ParentNode = "";
                string Key = "";
                string Data = "";                    
                loopData.TryGetValue("ParentNode", out ParentNode);
                loopData.TryGetValue("Key", out Key);
                loopData.TryGetValue("Data", out Data);
                if(ImmediateParent.Equals(ParentNode)) //&& Key.Equals(fieldName)
                {
                    body = body + '"' + Key + '"' + ":" + '"' + Data + '"'+',';
                }
            }
            body = body.Remove(body.Length - 1);
            body = "{" + body + "},";
            fullbody = fullbody + body;
        }            
        fullbody = fullbody.Remove(fullbody.Length - 1);            
        return start + fullbody + end;
    }

这段代码的问题是它总是返回这样的文本

“{\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

当我将这个字符串更新为JSON节点时,服务器无法解析它,问题在于反斜杠。有没有办法去掉反斜杠。所以我得到了这样的东西。。

“{”my_address_type:“primarypropertyaddress”,“my_address-street:“52 street”,“my_address-郊区:“vinvent”,“my_address-postcode:“2121”}”

我尝试了所有的可能性,但未能清除/删除反斜杠。删除反斜杠的任何代码片段。提前谢谢。