Dynamics365 - retrieve Query/FetchXML on a Advanced find results page - dynamics-crm

Question

Is there a possibility to retrieve an advanced find query/fetchxml on a result page? Before I trigger Results button I am able to press Fetchxml button but on a results page not. Is there a possibiltiy to retrieve this query/xml via javascript or C# and it has to be on a results page.

Answer 1

I am not 100% sure if we are talking about the same thing, but it is possible to state a query using Fetchxml.
Have a look at this page.
Here they use FetchExpression(string) to query with the regular organization service. You just need the organization service and the fetchxml to query it. Little example (from the link above!):
// Retrieve all accounts owned by the user with read access rights to the accounts
and
// where the last name of the user is not Cannon.
string fetch2 = #"
<fetch mapping='logical'>
<entity name='account'>
<attribute name='accountid'/>
<attribute name='name'/>
<link-entity name='systemuser' to='owninguser'>
<filter type='and'>
<condition attribute='lastname' operator='ne' value='Cannon' />
</filter>
</link-entity>
</entity>
</fetch> ";
EntityCollection result = _serviceProxy.RetrieveMultiple(new
FetchExpression(fetch2));
foreach (var c in result.Entities)
{
System.Console.WriteLine(c.Attributes["name"]);
}
As you see this is most likely a console job. How you use the Entities itself then is up to you.

Answer 2

As far as I know, there are no hooks to customize the Advanced Find page, so there's no way to add JavaScript to do what you want.
However, you could write a plugin that fires on the RetrieveMultiple message.
In the plugin you can get the QueryExpression from the RetrieveMultipleRequest
var q = (QueryExpression)context.InputParameters["Query"];
Then convert it to FetchXML.
var conversionRequest = new QueryExpressionToFetchXmlRequest
{
Query = q
};
var conversionResponse = (QueryExpressionToFetchXmlResponse)_serviceProxy.Execute(conversionRequest);
var fetchXml = conversionResponse.FetchXml;
Please note I have not tested the above code. And since I have not done this exact technique it's possible that you can cast the Query directly to FetchXML and skip the conversion call.
So, you might want to try this:
var q = (FetchExpression)context.InputParameters["Query"];
RetrieveMultiple plugins have their caveats. But, how bad is it?
On a related note, if the user saves the Advanced Find as a personal view, its FetchXML can be retrieved from the UserQuery entity.