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Documents shown in command prompt. The above output shows that two documents have fetched from the collection "userdetails" but only the data of user_id have …

How to return only specific fields from a MongoDB query? In this post let’s discuss how to get only specific fields from a MongoDB query. By default, queries in …

MongoDB is developed by MongoDB Inc. and is published as free and open-source software. A record in MongoDB is a document, which is a data structure composed of …

You can return specific fields in an embedded document. Use the dot notation to refer to the embedded field and set to 1 in the projection document. The following example returns: The …

mongodb c# select specific field Ask Question Asked 7 years, 6 months ago Modified 7 years, 6 months ago Viewed 11k times 4 Need some help creating a generic method for selecting fields by their name. something like this: T GetDocField<T> (string doc_Id, string fieldName)

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You can return specific fields in an embedded document. Use the dot notation to refer to the embedded field and set to 1 in the projection document. The ...

In this short tutorial, we'll see how MongoDB applies field restriction. 2. MongoDB Fields Restriction Using Projection.

Jun 30, 2015 · Viewed 11k times. 4. Need some help creating a generic method for selecting fields by their name. something like this: T GetDocField<T> (string doc_Id, string fieldName) The best I got is using projection which gives me the doc with only the wanted field seted: public T GetDocField<T> (string Doc_Id, string fieldName) { var value = DocCollection.Find (d => d.Id == Doc_Id) .Project<T> (Builders<Doc>.Projection .Include (new StringFieldDefinition<Doc> (fieldName))).FirstOrDefaultAsync ().

Get only specified fields from MongoDB C# Raw gistfile1.cs using MongoDB; using MongoDB. Driver; using MongoDB. Bson; using MongoDB. Driver. Builders; var connectionString = …

Get only specified fields from MongoDB C# Raw gistfile1.cs using MongoDB; using MongoDB. Driver; using MongoDB. Bson; using MongoDB. Driver. Builders; var connectionString = "mongodb://skpaul:somehowiknow1!@ds053139.mongolab.com:53139/mdp"; var client = new MongoClient ( connectionString ); var server = client. GetServer (); var database = server.

I get all users from a mongodb collection using the following code: List<User> users = null; var query = await _userCollection.FindAsync<User>(user => true); users = await …

I have translated your query below using the new C# driver (2.2) var mongoClient = new MongoClient(""mongodb://127.0.0.1:27017""); ...

The first is a “Select Query” and the second is the “Projection“. The Projection parameter returns the specific fields of the document rather ...

MongoDB query to fetch a specific document rom documents with field value set using NumberInt()? How to select objects where an array contains only a specific field in …

Apr 30, 2021 · I get all users from a mongodb collection using the following code: List<User> users = null; var query = await _userCollection.FindAsync<User>(user => true); users = await query.ToListAsync(); The elements in the users list have the same fields as the User model. Now I want the returned elements or documents to have every field except password.

Sep 10, 2020 · How to return only specific fields from a MongoDB query? In this post let’s discuss how to get only specific fields from a MongoDB query. By default, queries in MongoDB return all fields in matching documents. To restrict fields we can pass a projection document to your find query. Syntax db.collection.find( filter, [projection] )

var users = usersCollection.FindAllAs<T> () .SetFields (Fields<T>.Include (e => e.Id, e => e.Name)); You can do it via SetFields method of mongodb cursor: var users = …

Get only specified fields from MongoDB C#. ... var client = new MongoClient(connectionString);. var server = client. ... //Option C (with where clause).

Jan 4, 2023 · MongoDB is developed by MongoDB Inc. and is published as free and open-source software. A record in MongoDB is a document, which is a data structure composed of field and value pairs. MongoDB documents are similar to JSON objects. The values of fields may include other documents, arrays, and arrays of documents.

You can do it using SetFields method of MongoCursor class, below full example: var server = MongoServer.Create(connectionString); var db = _server.

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To get a database, specify the name of the database to the GetDatabase method on client ... It is possible to use your plain-old-C#-objects (POCOs) as well.

The C# Driver for MongoDB provides many ways to Read data from the database and supports both synchronous and asynchronous methods for querying the data. …