更新mongodb文档中的特定字段 [英] Update specific field in mongodb document

问题描述

我使用C#驱动程序在小型项目中使用MongoDb，现在我坚持更新文档. 试图弄清楚如何更新字段 AVG (int)

I using C# driver to use MongoDb in small projects, and now I stuck with updating documents. trying to figure out how to update the field AVG (int)

这是我的代码:

IMongoCollection<Student> studentCollection = db.GetCollection<Student>("studentV1");

Student updatedStudent = new Student() { AVG = 100, FirstName = "Shmulik" });

studentCollection.UpdateOne(
        o=>o.FirstName == student.FirstName,
            **<What should I write here?>**);

有一种简单干净的方法来更新特定字段，例如方法ReplaceOne(updatedStudent)?

there is simple and clean way to update specific field(s) like the method ReplaceOne(updatedStudent)?

推荐答案

尝试一下..& 了解更多信息

Try this..& for more info

IMongoCollection<Student> studentCollection = db.GetCollection<Student>("studentV1");

Student updatedStudent = new Student() { AVG = 100, FirstName = "Shmulik" });

var update = Update<Student>.
Set(s => s.AVG, "500").
Set(s => s.FirstName, "New Name");

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