SOAP call with query on result (SSRS, Sharepoint)

Question

I created a report in VS using a shared data source which is connected to a sharepoint list. In the report I created a dataset with a SOAP call to the data source so I get t

Answer 1

A post at:

http://social.msdn.microsoft.com/forums/en-US/sqlreportingservices/thread/1562bc7c-8348-441d-8b59-245d70c3d967/

Suggested using this syntax for placement of the node (this example is to retrieve the item with an ID of 1):

  http://schemas.microsoft.com/sharepoint/soap/GetListItems
  
    
      
        {CE7A4C2E-D03A-4AF3-BCA3-BA2A0ADCADC7}
      
      
        
          
            
              
                
                1
              
            
          
        
      
    
  
  *

However this would give me the following error:

Failed to execute web request for the specified URL

With the following in the details:

Element <Query> of parameter query is missing or invalid

From looking at the SOAP message with Microsoft Network Monitor, it looks as though the node is getting escaped to <Query> etc, which is why it fails.

However, I was able to get this to work using the method described in Martin Kurek's response at:

http://www.sharepointblogs.com/dwise/archive/2007/11/28/connecting-sql-reporting-services-to-a-sharepoint-list-redux.aspx

So, I used this as my query:

  http://schemas.microsoft.com/sharepoint/soap/GetListItems
   
      
         
            {CE7A4C2E-D03A-4AF3-BCA3-BA2A0ADCADC7}
         
         
           
      
   
   *

And then defined a parameter on the dataset named query, with the following value:

1

I was also able to make my query dependent on a report parameter, by setting the query dataset parameter to the following expression:

="" & 
Parameters!TaskID.Value & 
""