Access ASMX Script Service via HTTP GET

Question

I have made a ASP.net Web Service which contains a service which takes no parameters. I would like to invoke the ASMX service directly from a URL query.

This is my service

[WebMethod]
[ScriptMethod(UseHttpGet = true)]
public DataSet getXMLData()
{
    string strQuery = "SELECT  * FROM Products";
    string strRootNode = "Root";
    string strItemNode = "Item";

    dbConn = dbConnString;
    dbQuery = strQuery;
    .
    .
    .
    .
    da.Fill(ds, strItemNode);
    return ds;
}

This doesn't work

http://localhost:23147/ProductsWS.asmx?op=getXMLData

The page debug page for the service is displayed but it isn't invoked. I would like to be automatically invoked such that the query returns:

<Root xmlns="">
    <Item diffgr:id="Item1" msdata:rowOrder="0">
        <ModelName>Tree</ModelName> 
        <UnitCost>7.0000</UnitCost> 
    </Item>
    <Item diffgr:id="Item2" msdata:rowOrder="1">
        <ModelName>Stump</ModelName> 
        <UnitCost>13.0200</UnitCost> 
    </Item>
</Root>

How would I go about doing this?

First of all, which version of .NET are you using? If you're using .NET 3.0 or above, then you should not be creating ASMX web services at all. You should be using WCF instead. Second of all, please be more clear about what you're asking. What do you mean "passing one (1) URL"? What do you mean by "the xml file for the service"? Do you mean the WSDL? — John Saunders
– John Saunders, Commented Mar 8, 2012 at 0:47
You haven't answered my questions. What are you trying to accomplish? Can you post the code of the services? — John Saunders
– John Saunders, Commented Mar 8, 2012 at 1:04
What happens if you just display the help page, then click on the getXmlData operation and submit it? Does it work? If so, then the URL it uses is the URL you need to use for the service. Also, you haven't said what "doesn't work" means. — John Saunders
– John Saunders, Commented Mar 8, 2012 at 1:24

DaveB · Accepted Answer · 2012-03-10 22:41:51Z

3

This is the URL for calling your service:

http://localhost:23147/ProductsWS.asmx/getXMLData

answered Mar 10, 2012 at 22:41

DaveB

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1 Comment

John Saunders Over a year ago

Good catch. I didn't even notice he was using the wrong operation name.

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