title: Error handle: Element name is not valid?
body: <p>I am trying to insert bulk JSON string document in MongoDB. but some of the document is like in below JSON format.</p>
  
  <pre><code>{
    "application.data":"process"
  }
  </code></pre>
  
  <p>Here Problem is showing error message: <code>Element name "application.data" is not valid</code>.</p>
  
  <p>current code base</p>
  
  <pre><code>var collectionData = dataBase.GetCollection&lt;BsonDocument&gt;("collectionName");
  string json = "{ "application.data":"process" }";
  
  var document = BsonSerializer.Deserialize&lt;BsonDocument&gt;(json);//here is throwing error
  
  collectionData?.InsertOne(document);
  </code></pre>