Update() not working in MongoDB

Question

MongoDB for C#, I started following their tutorial but the compile error I get is on this line:

http://www.mongodb.org/display/DOCS/CSharp+Driver+Quickstart

 var update = Update.Set("Name", "Harry");

saying

System.Windows.Forms.Control.Update()' is a 'method', which is not valid in the given context.

The only difference I see is that they have used a Console Application but I created a C#WinForms applications and pasted their code inside a button click .

What is the rest of the code? where did you take it from. Sounds like you should qualify Update, but it's hard to tell with what you have here. — pms1969
– pms1969, Commented May 9, 2012 at 13:53
@pms1969 : Oh sorry, forgot to paste the link to the code..post updated. — Bohn
– Bohn, Commented May 9, 2012 at 13:54
the bottom of that tutorial has a link to a forum hosted by the guys who made the tutorial for the specific purpose of being able to ask them questions about it :P though youll get a wider range of answers here, probably faster too i guess — RhysW
– RhysW, Commented May 9, 2012 at 13:59

Craig Wilson · Accepted Answer · 2012-05-09 14:06:41Z

4

Update is simply ambiguous in the context you are using the call. You need to qualify the Update statement to include the namespace it is in.

var update = MongoDB.Driver.Builders.Update.Set("Name", "Harry");

This will probably get annoying, so you can also create an alias in your header.

using U = MongoDB.Driver.Builders.Update;

Then, you can change your statement to be this:

var update = U.Set("Name", "Harry");

answered May 9, 2012 at 14:06

Craig Wilson

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philnate · Accepted Answer · 2012-05-09 14:01:01Z

2

I guess your c#WinForms contains an method called Update, which c# tries to access instead of the MongoDB one. Have you checked that you're imported everything needed and that your accessing the right Object?

answered May 9, 2012 at 14:01

philnate

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1 Comment

philnate Over a year ago

Stuck to Craigs answer detailed information on howto resolve it. (I'm just a java boy)

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