Difference between revisions of "DCS Web Service"
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Revision as of 08:08, 5 January 2009
Contents
Introduction
The original reason for creating DCS web service was to retrieve data answered in a questionnaire and display them on a Portal element.
How to use
CatGlobe.Web.DataModule.DataCache.WebService.DCSWebService.GetDCSData(condition, onSuccessFunction, onFailFunction, element_context);
The condition xml should follow the format of:
1 <criteria dcs-id="1" top-N="1000" order-by-column="StartDate" order-type="desc">
2 <column name="StartDate"></column>
3 <column name="Q25"></column>
4 <column name="BankName"></column>
5 </criteria>
Limitation
There is a limit of data retrieval defined by JavaScriptSerializer.maxJsonLength, which is 4 MB Unicode characters as default. If the data retrieval is higher than this, an error will be returned in the onFailFunction: "Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property"
This can be fixed by updating the web config file:
<system.web.extensions>
<scripting>
<webServices>
<jsonSerialization maxJsonLength="500000">
</jsonSerialization>
</webServices>
</scripting>
</system.web.extensions>
