How to specify the input data bounds in web service?

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Yolande - 21 Feb 2005 21:07 GMT

Hi there,

I have a C# web service and I want to specify the lower bound and upper
bound of input value. e.g. [WebMethod] public long MilesToKilometers(long
lngMiles). I want the input value for lngMiles is within [0,100]. I expect
that there are some properties can be set before actually executing the
method. I don't want to validate the value in the method. Is there any help?

If I cannot validate the value in the C# code (except within the method),
can I do it using schema in WSDL? How? Thank you very much.

Yolande

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Trevor Pinkney - 21 Feb 2005 21:29 GMT

Hello Yolande,

You need to manually check if lngMiles is within range and throw a SoapException
if there is a problem.

if(lngMiles<0 || lngMiles>100)
{
SoapException se = new SoapException("Out of Range. Miles must be between
0 and 100",...);
se.Detail = "<Error><Code>100</Code><Description>Out of Range. Miles
must be between 0 and 100</Description></Error>";
throw se;
}

-Trevor

> Hi there,
>
[quoted text clipped - 9 lines]
>
> Yolande

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erymuzuan - 21 Feb 2005 23:38 GMT

Remember that WSDL is your contract, and if you want this in you your
contract then you should say so. If you're not keen in writing WSDL
first, get Chritian weyer Contract first add -in.
or you can save your WSDL(auto gen.) go to to types where it says

<xs:element name="lngMiles" type="xsd:int"/>

change this to

<xs:element name="lngMiles">
    <xs:simpleType>
        <xs:restriction base="xs:int">
            <xs:minInclusive value="0"/>
            <xs:maxInclusive value="100"/>
        </xs:restriction>
    </xs:simpleType>
</xs:element>

then save it in your web dir. Disable web services documentation in
web.config. let your user use this new wsdl file.

for the validation you can use SoapExtension, see this article
http://msdn.microsoft.com/msdnmag/issues/02/11/XMLFiles/default.aspx

regards
erymuzuan mustapa

> Hello Yolande,
>
[quoted text clipped - 25 lines]
>>
>> Yolande

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How to specify the input data bounds in web service?

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