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How to call and bind a web service to a control using VB.NET
Hello,
I have several web services that I need to integrate into an existing site. I have successfully tested all of them using a stand alone web service application so I know they are available and work. I have also already added them as web references to my site using Visual Studio 2010.
Each service contains methods that return arrays, sometimes arrays within arrays, of data. I need to be able to filter through all of these results and take actions based on them; sometimes displaying data, sometimes making behind the scenes actions. I imagine that a repeater will give me the most flexibility with presentation, but to start off with I would just like to bind the raw results of some of the methods to a GridView just to know the connection is working and see the data on the screen. I need guidance in binding the data to the control, but I'm getting errors even before I reach that point. Here is what the VB.NET code looks like from within the Page_Load sub:
When refreshing the page I am getting the following error:
Any help consuming the Web Service and then binding to control is appreciated.
Thanks!
I have several web services that I need to integrate into an existing site. I have successfully tested all of them using a stand alone web service application so I know they are available and work. I have also already added them as web references to my site using Visual Studio 2010.
Each service contains methods that return arrays, sometimes arrays within arrays, of data. I need to be able to filter through all of these results and take actions based on them; sometimes displaying data, sometimes making behind the scenes actions. I imagine that a repeater will give me the most flexibility with presentation, but to start off with I would just like to bind the raw results of some of the methods to a GridView just to know the connection is working and see the data on the screen. I need guidance in binding the data to the control, but I'm getting errors even before I reach that point. Here is what the VB.NET code looks like from within the Page_Load sub:
Dim wsRequest As New [Web Reference Name Here].[Web Service Name Here]
Dim wsResult As New wsResult
wsResult = wsResult .[Method Name Here]("Passed Value")When refreshing the page I am getting the following error:
Compiler Error Message: BC30002: Type 'wsResult ' is not defined.Any help consuming the Web Service and then binding to control is appreciated.
Thanks!
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Thanks for your help. Unfortunately, I am not familiar with the built in debugger of VS. I can see what is normally returned for that object via a stand alone web service testing tool I use. If it helps I could paste the wsdl details on the complexType elements returned.
The objects underlined are:
Dim wsRequest As New [Web Reference Name Here].[Web Service Name Here]
Dim wsResult As New [Web Reference Name Here].wsDataAccessResult
The objects underlined are:
Dim wsRequest As New [Web Reference Name Here].[Web Service Name Here]
Dim wsResult As New [Web Reference Name Here].wsDataAccessResult
Are you running this in Visual Studio?
If so, go the "myGridView.DataSource = wsResult" line and press F9, then run the application and when it gets to that line it will pause. Hover over the word "wsResult" and you should be able to see the internals.
If so, go the "myGridView.DataSource = wsResult" line and press F9, then run the application and when it gets to that line it will pause. Hover over the word "wsResult" and you should be able to see the internals.
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ASKER
The other difference I noticed was in the web.config. The existing project refers to the web reference as:
<appSettings>
<add key="WebReferenceName.WebS
</appSettings>
while the new project refers to it as:
<applicationSettings>
<TestApp.My.MySettings>
<setting name="TestApp_WebReference
serializeAs="String">
<value>http://IPAddress/ServiceName.asmx</value>
</setting>
</TestApp.My.MySettings>
</applicationSettings>
<appSettings>
<add key="WebReferenceName.WebS
</appSettings>
while the new project refers to it as:
<applicationSettings>
<TestApp.My.MySettings>
<setting name="TestApp_WebReference
serializeAs="String">
<value>http://IPAddress/ServiceName.asmx</value>
</setting>
</TestApp.My.MySettings>
</applicationSettings>
I don't know how you are adding a Web Reference if you aren't using Visual Studio. When you add a web reference if creates (codegens) a class for you called WebServiceName, and then it gives you Intellisense based on that. If you aren't getting Intellisense then it is because there is a problem with that codegen'ed file. Since you cannot even compile your application, I think this is related.
ASKER
I am using Visual Studio 2010, but I don't see a class that was created. Where is the class supposed to be located? What I find odd, is that the web service works, but VS doesn't seem to know that it created the web reference for it. I have tried deleting and recreating the web service. Does the .NET version the site is running under make a difference?
The class should be under Web References. It *might* be hidden in VS, look at the file system to see if it is there. If not, it might be working because you project references a dll that has an old copy of the reference.
If you remove the reference does your code still work?
If you remove the reference does your code still work?
ASKER
The file system just has a folder the same name as the web reference that contains a .disco, .discomap, and .wsdl files. The code does not work when I remove the web reference.
Hmm, no reference.vb file?
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ASKER
Expert was very helpful, but my solutions were cobbled together from several suggestions and personal research along with some luck.
As far as not recognizing the web reference, what object is being underlined?