c Add web references, c How to dynamically set web reference URLs

Yahoo has full API documentation for Yahoo Weather Forecast's URL is:

Parameter W corresponds to the WOEID in the Yahoo database in various places, such as Beijing's WOEID is 2151330, and the parameter P can also be used instead of W, but the official still recommends using W, P is planned to be canceled. The parameter U is used to determine the unit of temperature (C is Celsius, F is Fahrenheit). For the weather query in China (not compared abroad), Yahoo is relatively complete in terms of both the places that can be found and the content of the forecast.

Detailed API documentation comments.

There are a lot of them, you can try them, all free, a single easy to find, a collection is not easy to find.

Directly add them one by one.

Google Code. So many apisIf you don't find the API, you can grab it yourself.

When we develop C Winform, sometimes call the web service, the service is local and the current easy to do, as long as it is introduced in the web references in the project, you can directly create a web service object in ** to reference, in fact, the principle is c to help you automatically create a client ** class to call the webservice, but if the service is dynamic, for example, there is the same service in several IIS, Enter the specific IP at runtime to determine which service to call, so how to implement it.

c Dynamically call web service method 1: Manually add a web reference, and then modify the local ** class. Finally, the URI of the web service is deployed to the configuration file. Here's how:

If you are developing with VS2005+, you can right-click on the "References" section of the project -> "Add Service Reference"-> then fill in the URL of your webservice and click "Go", OK!If it is a WebService under the same solution, you can click "Discover", and the IDE will automatically search for the local WebService and add it automatically.

Right-click on the project, select Add Service Reference, then pop up a screen, then see the button in the lower left corner, click to enter another screen, and then look at the button in the lower left corner, add the web service reference, and click it.

Right-click on the reference, select Add Web Reference, and follow the wizard to the next step.

Add a service reference Advanced Add a web reference.

WinForm is the same as the web, in the solution, reference, right-click, add web reference, enter the url that appears, which is your webserver address (you can also click to browse the local webserver), check Add to project.

The project initializes a webserver and calls the methods inside the webserver with its objects.

The premise of the reference is that you build a webserver and run it successfully, so that the reference will appear and be added successfully. Explain.

The landlord must be using VS2008.,It's OK according to the following method.。

1.In Solution Explorer, right-click the name of the project to which you want to add a service, and then click Add Service Reference.

The Add Service Reference dialog box appears.

2.In the Add Service Reference dialog box, click the Advanced button.

The Service Reference Settings dialog box appears.

In the Service Reference Settings dialog box, click Add.

web references".

"Add" will appear.

Web References dialog box.

Enter the URL box you want to use.

web services.

url。If you don't know.

URL, use the links in the browse pane to find what you need.

web services.

You have to know what the other party's interface is. What is the method, what parameters to accept see the following cYou can refer to this for details of net dynamic call webservice, there is a ** tutorial, I hope it can help you.

Add web reference is the name before vs2008,vs2010 changed to add service reference,As for not seeing someone who has encountered it before,I don't know the specific reason,You try to create a new form program,Then right-click to add it,If it still doesn't work,Try to right-click on the reference under the project (normally there should be two,One is to add a reference,One is to add a service reference),Or not,Think about whether you have a custom removal of something when you install VS., Especially things related to the web. You can re-enter the vs installer to see.

I checked it on the Internet, and there were other users who reported this situation, some said that it was Vista that caused that kind of problem, and some said. net used to have that kind of problem, but I see that your screenshot is 4. It doesn't seem to be easy to solve.

Is yours the express version? There should always be a web reference or a service reference.

Adding a reference is to add the assembly you use in **, and you need to add a reference before you can use using to introduce the namespace.

Web reference is to add webservice and wcf service.

One is to add DLLs, and adding web references is to add web services.

httpUtility directly refers to using, can't it be used??