title: SSRS reports only accept American date parameters
body: <p>We have a SSRS report that accepts one date/time input parameter.  We have found that the report fails when it is executed from our Silverlight clients with the following error: </p>
  
  <p>"The value provided for the report parameter 'CurrentDate' is not valid for its type."</p>
  
  <p>On further investigation we have found that the report fails when the date value being passed over to the report has a day number greater than 12.  e.g. 01/01/2011 is OK.  17/06/2011 will fail.  This tells us that the report on the SSRS box must be expecting the date in American format i.e mm/dd/yyyy.</p>
  
  <p>How can I fix this?  So far I have tried the following:</p>
  
  <p>I have set the Language property on the report to en-GB.  This makes no difference.
  I have changed the locale in the Silverlight code just before the report is executed e.g. </p>
  
  <pre><code>System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
  ExecuteReport();
  System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-GB"); 
  </code></pre>
  
  <p>This works but I am not happy with this solution.  It seems like a big hack just to get dates accepted on our SSRS reports.</p>
  
  <p>Why is SSRS expecting all date parameters to be in US format?  Can I resolve this without jumping through hoops?  Please help!</p>