title: Remove/Replace newline character from JSON in .Net using JsonConvert
body: <p>I need to remove some newline characters from some string values while serializing to JSON -- i.e. during c# object to JSON conversion.  How can this be done?</p>
  
  <pre><code>public static string ToJson(this object value)
  {
    //Serializing C# Object to Json which gives me below mentioned JSON.
    return JsonConvert.SerializeObject(value);
  }
  </code></pre>
  
  <p>Below is my sample JSON:</p>
  
  <pre><code>{
      "PolicyHolderInfo": {
          "ActionDate": "20190912",
          "EmployeeCode": "EPL2",
          "LocalEntityCode": "K",
          "PolicyHolderCode": "1YAAAAC",
          "Name1": "monoliability PDL\n",
          "Name2": "test\n",
          "Street1": "-",
          "Street2": "-",
          "City": "-",
          "PostCode": "-",
          "Subdivision": "01",
          "FMEPaymentFrequency1": "00",       
          "Reference": "C00-AAC"
      },
      "PolicyHolderTrailerInfo": {
          "RecordCode": "Z",
          "CountryCode": "KSA",
          "SourceIndicator": "EPLC",
          "RecordSequence": 0,
          "LinkNumber": 0,
          "RecordType": "Z",
          "ReturnCode": null,
          "Reference": "1-AC"
      },
      "SourceSystemDate": "2019-09-17T17:48:31.3543314+08:00"
  }
  </code></pre>
  
  <p>The Name1 and Name2 has newline character \n. I tried many options to remove those \n. Instead of looping through every value, I am just trying to replace globally if any new line characters present. None of the below options are working? </p>
  
  <p><strong>C#:</strong></p>
  
  <pre><code>var str1 = JsonConvert.ToString(value);
  var str2 = value.Replace(System.Environment.NewLine, string.Empty);
  Regex regex_newline = new Regex("(\r\n|\r|\n)");
  var str3 = regex_newline.Replace(value, "");
  var str4 = value.Replace("\n", string.Empty);  
  </code></pre>
  
  <p>The 'value' in above code is json mentioned in the sample.</p>