Sir i want to connect a particular MongoDb database to c# application using Web.config. Please tell me how to do that. ?

[Hariom Sharma]

Sir i want to connect a particular MongoDb database to c# application using Web.config.

Please tell me how to do that.

?

[Diego Gago]

You can use the mongodb c# driver, put your connection string in the <connectionStrings> section of your web.config, and then write a little snippet like this:

MongoUrl url = new MongoUrl(ConfigurationManager.ConnectionStrings[connectionStringName].ConnectionString);

var client = new MongoClient(url);

var db = client.GetDatabase(url.DatabaseName, null);
// now you can get collections from db

Regards,

Diego.

[OmIndia Tech India]

Sir I am Using Same Code But Still Showing Error.

Error is -

WriteConcern detected an error 'not authorized for insert on admin.newcol'. (Response was { "connectionId" : 293, "err" : "not authorized for insert on admin.newcol", "code" : 13, "codeName" : "Unauthorized", "n" : 0, "ok" : 1.0 }).

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

MongoUrl url = new MongoUrl(ConfigurationManager.ConnectionStrings["myco"].ConnectionString);

        var client = new MongoClient(url);

        var ser = client.GetServer();

        ser.Ping();

        var ddb = ser.GetDatabase(url.DatabaseName);

        var col = ddb.GetCollection("newcol");

        var document = new BsonDocument

        {

           {"property", "10"},

        };

        col.Insert(document);

        Response.Write(col);

    }

Connection String in Web.config-

mongodb://admin:password@localhost:27017/admin

[Wan Bachtiar]

Hi,

A couple of things:

• You are writing into admin database. Please see C#: get a database to switch using a different database. 
• You are logged in as admin user. Please ensure you have the necessary roles/auth to write into the intended database/collection. Note that userAdminAnyDatabase does not have insert action.

I would recommend to enrol in a free online course at MongoDB University to learn more about MongoDB. The next session for MongoDB C# Driver - M101N: MongoDB for .NET Developers starts on the 17th October.

Regards,
Wan.

​