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POHow does one pass null values to optional parameters in a Business Objects report using the Business Objects SDK?
 

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  1. POHow does one pass null values to optional parameters in a Business Objects report using the Business Objects SDK?
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    <p>I am building a web front end for accessing Business Objects reports using the Business Objects SDK for .NET. I have been able to hack my way through 95% of the business requirements with the sparse documentation and forum posts available online for the topic. My final roadblock centers on working with parameterized reports. Our business has situations in which a report has two parameters and the end user is only requried to populate one of them. It's easy enough to collect and cleanse this data, but no matter how I try to pass the null valued parameter to the reports, I get no data back. If both parameters are populated I DO get the expected data. When stepping through the code in Visual Studio I see that whenever BusinessObjects returns a null valued parameter it displays as an empty string (""). I have tried passing this as a parameter value and have also tried assigning the parameter a value of null. Neither of these options returns results once the report is scheduled and run. I have an example of my parameter assignment code below using each of the approaches that I've taken (We need to check for a string valued "null" as the user's have requested the ability to type "null" and have that passed to the report). None of these produce a report that contains data.</p> <pre><code>sVal.Value = param.ParameterValue != "null" ? param.ParameterValue : String.Empty; sVal.Value = param.ParameterValue != "null" ? param.ParameterValue : ""; sVal.Value = param.ParameterValue != "null" ? param.ParameterValue : null; </code></pre> <p>Is there a specific value that the Enterprise Server uses to indicate null, such as dates are required to be wrapped in Date()? </p> <p>Edit: The functionality I need to duplicate as seen in InfoView: <img src="https://i.stack.imgur.com/lyv04.png" alt="Image of null parameter option in InfoView"></p>
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    1. COAre you using an Oracle stored procedure, by chance?
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