In this guide, you can learn how to use the MongoDB .NET/C# Driver to retrieve data from a MongoDB collection by using read operations. You can call the Find() method to retrieve documents that match a set of criteria.

Aug 26, 2015 · var firstNameFilter = builder.Eq(x => x.FirstName, firstName); filter &= firstNameFilter; var lastNameFilter = builder.Eq(x => x.LastName, lastName); filter &= lastNameFilter; var ageFilter = builder.And(builder.Gt(x => x.Age, minAge), builder.Lt(x => x.Age, maxAge)); filter &= ageFilter; You can use very simply like this way.....

Jul 5, 2024 · Learn how to leverage MongoDB.Driver in .NET and C# for efficient data filtering. This guide focuses on implementing MongoDB operations directly within a .NET 8 Web API project, skipping higher-level architecture.

Jul 6, 2024 · In this article, we explored various MongoDB filters available in the MongoDB.Driver package using .NET and C#. These filters allow you to perform a wide range of data querying operations...

Aug 2, 2017 · I need to apply filter on root level property a and nested property c. My filter code is:- public string a { get; set; } public MyFilterNestedClass nested { get; set; } public string c { get; set; } And filter code:- var _filterDef = Builders<MyClass>.Filter.Empty;

In this guide, the Flower class is the document type used in each builder class example. The FilterDefinitionBuilder class provides a type-safe interface for building up queries. Suppose you want to query your collection for documents matching the following criteria: Use builders to create the filter definition with the typed variant:

May 9, 2022 · The "WHERE" operator is the equivalent to doing a "$MATCH" or a filter within MongoDB. The documents have to match the criteria in this step. The "SELECT" operator is the equivalent to doing a projection or using the "$PROJECT" operator.

Apr 21, 2015 · You can add filter by using Find() instead of .FindAll() method, like this: .Find(Query<Model.Urls>.EQ(x => x.Url, "Ken")).AsQueryable(); group item by item.Url) .OrderByDescending(p => p.Sum(x => x.ViewsCount)) .Skip((PageIndex - 1) * PageSize) .Take(PageSize); what's the assembly for Query?

Apr 1, 2024 · When working with MongoDB in C#, one powerful tool for filtering documents is the MongoDB FilterDefinitionBuilder. The FilterDefinitionBuilder allow us to construct filter expressions easily and efficiently, making the process of querying MongoDB much simpler.

Jan 27, 2020 · We can declare a filter at the top and pass that down in to a find, which will have a skip and limit on it. We will also send the same filter to a CountDocumentsAsync so that we can work out the total pages based on the page size.