Solved

Web Service Behavior in an ASP.NET User Control

Posted on 2004-09-03
10
380 Views
Last Modified: 2010-05-18
I have not been able to come across any documentation describing how to invoke WebService behavior from inside a User Control.

The documentation dealing with using this behavior from within an ASP.NET page has you leverage the "onload" event of the <body> element of the page, as follows:

<body onload="init()">
  <div id="service" style="BEHAVIOR: url(webservice.htc)"></div>
</body>

where the function init() is defined in script as follows:

function init()
{
      // Create an instance of the web service and call it svcEmployee
      service.useService("SomeService.asmx?WSDL","someSvc");
}

As I understand, you do not have the luxury of using a <body> element when it comes to User Controls. My problem is how to invoke such an initialization function when I have no access/control to the page code.

Any help appreciated,
Satyen
0
Comment
Question by:hingos
  • 4
  • 2
10 Comments
 
LVL 26

Accepted Solution

by:
Rejojohny earned 250 total points
ID: 11987668
where do u want to invoke the web service from? from the code-behind? if s, then y do u need the body tag? it is just like calling any web service ...

add a web reference of the web service u want to access
Create an instance of the proxy object in your code where you want to access the XML Web service.
Access the methods of the XML Web service as you would any other component.
0
 

Author Comment

by:hingos
ID: 11996132
Unfortunately I am not looking to invoke the web service from the code-behind. That would make the invocation run server-side.  The whole point of the Web Service "Behavior" support (developed by Microsoft), via the webservice.htc HTML component, is to enable client-side script to invoke remote methods exposed by Web Services.
0
 
LVL 26

Expert Comment

by:Rejojohny
ID: 11996154
u could use xmlhttp ...
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 26

Expert Comment

by:Rejojohny
ID: 12210486
Please have a look at my suggestion .. i ams sure it was an apt solution ...
0
 

Expert Comment

by:stuart_wachsberg
ID: 12230679
your solution lies in javascript, not codebehind.

see http://simon.incutio.com/archive/2004/05/26/addLoadEvent
0
 
LVL 26

Expert Comment

by:Rejojohny
ID: 12234597
that is esactly that i mentioned use javasript to instantiate xmlhttp object and call the web service .. not code-behind ..
0
 

Assisted Solution

by:stuart_wachsberg
stuart_wachsberg earned 250 total points
ID: 12237704
Not exactly the same, Rejojohny. Satyen specifically wants to use the service behaviour described at :

http://msdn.microsoft.com/library/default.asp?url=/workshop/author/webservice/webservice_node_entry.asp

He has no interest in the xmlhttp com component.

To use the webservice behaviour described above, he needs to put some code in the Javascript onLoad event coded in the body tag.

His question then is more general than webservice usage: how can a control add to Javascript onLoad of the body tag?

The answer is to do it via a javascript assignement to window.onload, which, as I mentionned, is well-explained at  http://simon.incutio.com/archive/2004/05/26/addLoadEvent

The user control has the ability, via the RegisterClientScriptBlock, to place javascript code on the page. That javascript code can call window.onload. By transitivity, this implies that the user control can add to the onLoad of the body tag.


0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
ASP.NET e-commerce website 4 57
Why don't I see this table in EDMX file? 2 23
Run time Error 4 34
Message not shown 5 31
Lots of people ask this question on how to extend the “MembershipProvider” to make use of custom authentication like using existing database or make use of some other way of authentication. Many blogs show you how to extend the membership provider c…
Today is the age of broadband.  More and more people are going this route determined to experience the web and it’s multitude of services as quickly and painlessly as possible. Coupled with the move to broadband, people are experiencing the web via …
This is used to tweak the memory usage for your computer, it is used for servers more so than workstations but just be careful editing registry settings as it may cause irreversible results. I hold no responsibility for anything you do to the regist…
In this video I am going to show you how to back up and restore Office 365 mailboxes using CodeTwo Backup for Office 365. Learn more about the tool used in this video here: http://www.codetwo.com/backup-for-office-365/ (http://www.codetwo.com/ba…

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now