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POHow to solve error: This report requires a default or user-defined value for the report parameter '*'
 

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  1. POHow to solve error: This report requires a default or user-defined value for the report parameter '*'
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    <p>I'm getting the error:</p> <p><code>This report requires a default or user-defined value for the report parameter '*'. To run or subscribe to this report, you must provide a parameter value.</code></p> <p>very occasionally from my reporting server even when the value '*' is being populated. Any ideas or leads that might allow me to track it down? Some points.</p> <ul> <li>I run the reports 4-way asynchronously (meaning 4 threads generating reports at a time).</li> <li>The reports have 2 provided parameters (always supplied) and one derived parameter.</li> <li>I run 1,000 reports per session with ~250 reports per thread.</li> <li><p>Sometimes the error will hit after a few seconds, sometimes after many hours.</p> <pre><code>using System; using System.Globalization; using System.IO; using Cns.ReportExecution2005; public class PdfGenerator { private readonly ReportExecutionService reportExecutionService; public PdfGenerator(string executionServiceAddress) { // Create a new proxy to the web service this.reportExecutionService = new ReportExecutionService { Credentials = System.Net.CredentialCache.DefaultNetworkCredentials, Url = executionServiceAddress }; } public Stream GenerateReport(string reportName, string format, ReportGeneratorParameter[] parameters) { if (reportName == null) { throw new ArgumentNullException("reportName"); } if (format == null) { throw new ArgumentNullException("format"); } this.reportExecutionService.LoadReport(reportName, null); if (parameters != null) { var executionParameters = new ParameterValue[parameters.Length]; for (int i = 0; i &lt; parameters.Length; ++i) { executionParameters[i] = new ParameterValue { Label = parameters[i].Name, Name = parameters[i].Name, Value = Convert.ToString(parameters[i].Value, CultureInfo.InvariantCulture) }; } this.reportExecutionService.SetExecutionParameters(executionParameters, "en-us"); } string extension; string encoding; string mimeType; Warning[] warnings; string[] streamIDs; byte[] results = this.reportExecutionService.Render(format, null, out extension, out encoding, out mimeType, out warnings, out streamIDs); return new MemoryStream(results); } } </code></pre></li> </ul>
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    1. USOrion Adrian
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    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. COMind to share the code?
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      1. POHow to solve error: This report requires a default or user-defined value for the report parameter '*'
      1. USVVS
    2. COWhat do you mean by "derived" parameter? Do you get the problem if you run the reports synchronously? Can you have your routine dump all of the parameters out to ensure it's not bad data?
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      1. POHow to solve error: This report requires a default or user-defined value for the report parameter '*'
      1. USmatt eisenberg
    3. CODerived parameters are ones that are calculated parameters based on a query. I've run it in the debugger session and the parameter is correct and correctly set.
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      1. POHow to solve error: This report requires a default or user-defined value for the report parameter '*'
      1. USOrion Adrian
 

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