Find a Document
On this page
You can retrieve a document by using the Find() method on a collection object.
Examples
The examples on this page use the following Restaurant, Address, and GradeEntry
classes as models:
public class Restaurant { public ObjectId Id { get; set; } public string Name { get; set; } [] public string RestaurantId { get; set; } public string Cuisine { get; set; } public Address Address { get; set; } public string Borough { get; set; } public List<GradeEntry> Grades { get; set; } }
public class Address { public string Building { get; set; } [] public double[] Coordinates { get; set; } public string Street { get; set; } [] public string ZipCode { get; set; } }
public class GradeEntry { public DateTime Date { get; set; } public string Grade { get; set; } public float Score { get; set; } }
Note
The documents in the restaurants collection use the camel-case naming
convention. The examples in this guide use a ConventionPack
to deserialize the fields in the collection into Pascal case and map them to
the properties in the Restaurant class.
To learn more about custom serialization, see Custom Serialization.
Find a Document Using Builders
The following example uses Builders to find a document in the restaurants
collection that has a name field with a value of "Bagels N Buns".
Select the Asynchronous or Synchronous tab to see the corresponding code.
Find a Document Using LINQ
The following example uses LINQ to find a document in the restaurants
collection that has a name field with a value of "Bagels N Buns".
Select the Asynchronous or Synchronous tab to see the corresponding code.
Expected Result
Running any of the preceding full examples prints results similar to the following:
{ "_id" : ObjectId("5eb3d668b31de5d588f42950"), "name" : "Bagels N Buns", "restaurant_id" : "40363427", "cuisine" : "Delicatessen", "address" : {...}, "borough" : "Staten Island", "grades" : [...] }
Additional Information
To learn more about retrieving documents, see the Retrieve Data guide.
To learn more about using builders, see Operations with Builders.
To learn how to find a document using LINQ, see LINQ.