Using a web browser commends by .NET

[shaicoh]

Hi

I have wrote the attached code in order to control a IP Power 9258 device.

The code uses me to write a commend to the device and read his status.

the problem start as I try to use it within some other application.

If I do it all I get is that on the first run it does what it should and at the next run it doesn't do a thing.

I think the problem is coming from using the same browser refnum.

(see more explanations within the code) 

Its my first time using .NET so please be as informative as possible 🙂

Thanks

Shai   

[HJPhilippi]

Shai,

the point is, there are several aspects wrong with your code. To make it short: look at the example VI I've attached - WebClient, not WebBrowser is your friend. 🙂

MOST IMPORTANT: do not create a .NET instance with every VI run! Create just one instance, do the cyclic operation, and close it again afterwards!

Another goodie my example shows: adding a permanently changing fake/unknown/unused parameter to the request is ignored by most servers and assures that nobody on the way (proxies etc.) will use a cached response.

Cheers,

Hans