MONGO, string in array automatically becomes a number causing an error

Source: Internet
Author: User

Problems encountered:

There is a message object with a field called Useridlist, type list<string>, and a Message object serialized and stored MONGO

VAR message=new message () {  

var bd = bsondocument.parse (jsonconvert.serializeobject (message));

= collection. Insertoneasync (BD);
and read the message.
Useridlist = jsonconvert.deserializeobject<list<string>> (item. GetElement ("Useridlist"). Value.tostring ())

In this sentence code Error!!!! Error message: Input string "02222222222222222222222" is not a valid number

Feel a little puzzled, clearly converted into a string, how can there be this hint?

Repeatedly debug found, item. GetElement ("Useridlist"). Value read out is an array of type MONGO, the original string array, directly into the array of numbers. So there will be an error when the outer layer is JSON converted!

Then, you can change the wording, the following is correct:

useridlist=jsonconvert.deserializeobject<list<string>> (item. GetValue ("useridlist"). ToJson ()),

MONGO, string in array automatically becomes a number causing an error

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.