Tuesday, May 17, 2011

Using Assign Requests to Assign Entities to a User Using Jscript and .NET in Microsoft Dynamics CRM 2011

This illustration shows you how to assign an entity to a User (systemuser) in Microsoft Dynamics CRM 2011 using the assign request.   This example will be given in SOAP (JScript) and in C# (.NET).  In this example we are simply assigning a contact entity to a systemuser entity.

Ok, here is what the calls look like!
First in C#:

// Create the Request Object and Set the Request Object's Properties
         AssignRequest assign = new AssignRequest
         {
             //systemuser you are assigning the entity to
             Assignee = new EntityReference(SystemUser.EntityLogicalName,
                 new Guid("05B84284-0872-E011-8947-1CC1DEE8DAD5")),

             //entity you are assigning to the user
             Target = new EntityReference(Contact.EntityLogicalName,
                 new Guid("0C961D47-FB71-E011-882E-1CC1DEF17774"))
         };


         // Execute the Request
         service.Execute(assign);

If you need help instantiating a service object in .NET within a plugin check out this post:
http://mileyja.blogspot.com/2011/04/instantiating-service-object-within.html

Now here is the Jscript nicely formatted by the CRM 2011 SOAP formatter. Available at: http://crm2011soap.codeplex.com/

Now in Jscript:

if (typeof (SDK) == "undefined")
   { SDK = { __namespace: true }; }
       //This will establish a more unique namespace for functions in this library. This will reduce the 
       // potential for functions to be overwritten due to a duplicate name when the library is loaded.
       SDK.SAMPLES = {
           _getServerUrl: function () {
               ///<summary>
               /// Returns the URL for the SOAP endpoint using the context information available in the form
               /// or HTML Web resource.
               ///</summary>
               var OrgServicePath = "/XRMServices/2011/Organization.svc/web";
               var serverUrl = "";
               if (typeof GetGlobalContext == "function") {
                   var context = GetGlobalContext();
                   serverUrl = context.getServerUrl();
               }
               else {
                   if (typeof Xrm.Page.context == "object") {
                         serverUrl = Xrm.Page.context.getServerUrl();
                   }
                   else
                   { throw new Error("Unable to access the server URL"); }
                   }
                  if (serverUrl.match(/\/$/)) {
                       serverUrl = serverUrl.substring(0, serverUrl.length - 1);
                   } 
                   return serverUrl + OrgServicePath;
               }, 
           AssignRequest: function () {
               var requestMain = ""
               requestMain += "<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\">";
               requestMain += "  <s:Body>";
               requestMain += "    <Execute xmlns=\"http://schemas.microsoft.com/xrm/2011/Contracts/Services\" xmlns:i=\"http://www.w3.org/2001/XMLSchema-instance\">";
               requestMain += "      <request i:type=\"b:AssignRequest\" xmlns:a=\"http://schemas.microsoft.com/xrm/2011/Contracts\" xmlns:b=\"http://schemas.microsoft.com/crm/2011/Contracts\">";
               requestMain += "        <a:Parameters xmlns:c=\"http://schemas.datacontract.org/2004/07/System.Collections.Generic\">";
               requestMain += "          <a:KeyValuePairOfstringanyType>";
               requestMain += "            <c:key>Target</c:key>";
               requestMain += "            <c:value i:type=\"a:EntityReference\">";
               requestMain += "              <a:Id>C9EE81A3-0572-E011-882E-1CC1DEF17774</a:Id>";
               requestMain += "              <a:LogicalName>contact</a:LogicalName>";
               requestMain += "              <a:Name i:nil=\"true\" />";
               requestMain += "            </c:value>";
               requestMain += "          </a:KeyValuePairOfstringanyType>";
               requestMain += "          <a:KeyValuePairOfstringanyType>";
               requestMain += "            <c:key>Assignee</c:key>";
               requestMain += "            <c:value i:type=\"a:EntityReference\">";
               requestMain += "              <a:Id>05b84284-0872-e011-8947-1cc1dee8dad5</a:Id>";
               requestMain += "              <a:LogicalName>systemuser</a:LogicalName>";
               requestMain += "              <a:Name i:nil=\"true\" />";
               requestMain += "            </c:value>";
               requestMain += "          </a:KeyValuePairOfstringanyType>";
               requestMain += "        </a:Parameters>";
               requestMain += "        <a:RequestId i:nil=\"true\" />";
               requestMain += "        <a:RequestName>Assign</a:RequestName>";
               requestMain += "      </request>";
               requestMain += "    </Execute>";
               requestMain += "  </s:Body>";
               requestMain += "</s:Envelope>";
               var req = new XMLHttpRequest();
               req.open("POST", SDK.SAMPLES._getServerUrl(), true)
               // Responses will return XML. It isn't possible to return JSON.
               req.setRequestHeader("Accept", "application/xml, text/xml, */*");
               req.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
               req.setRequestHeader("SOAPAction", "http://schemas.microsoft.com/xrm/2011/Contracts/Services/IOrganizationService/Execute");
               var successCallback = null;
               var errorCallback = null;
               req.onreadystatechange = function () { SDK.SAMPLES.AssignResponse(req, successCallback, errorCallback); };
               req.send(requestMain);
           },
       AssignResponse: function (req, successCallback, errorCallback) {
               ///<summary>
               /// Recieves the assign response
               ///</summary>
               ///<param name="req" Type="XMLHttpRequest">
               /// The XMLHttpRequest response
               ///</param>
               ///<param name="successCallback" Type="Function">
               /// The function to perform when an successfult response is returned.
               /// For this message no data is returned so a success callback is not really necessary.
               ///</param>
               ///<param name="errorCallback" Type="Function">
               /// The function to perform when an error is returned.
               /// This function accepts a JScript error returned by the _getError function
               ///</param>
               if (req.readyState == 4) {
               if (req.status == 200) {
               if (successCallback != null)
               { successCallback(); }
               }
               else {
                   errorCallback(SDK.SAMPLES._getError(req.responseXML));
               }
           }
       },
       _getError: function (faultXml) {
           ///<summary>
           /// Parses the WCF fault returned in the event of an error.
           ///</summary>
           ///<param name="faultXml" Type="XML">
           /// The responseXML property of the XMLHttpRequest response.
           ///</param>
           var errorMessage = "Unknown Error (Unable to parse the fault)";
           if (typeof faultXml == "object") {
               try {
                   var bodyNode = faultXml.firstChild.firstChild;
                   //Retrieve the fault node
                   for (var i = 0; i < bodyNode.childNodes.length; i++) {
                       var node = bodyNode.childNodes[i];
                       //NOTE: This comparison does not handle the case where the XML namespace changes
                       if ("s:Fault" == node.nodeName) {
                       for (var j = 0; j < node.childNodes.length; j++) {
                           var faultStringNode = node.childNodes[j];
                           if ("faultstring" == faultStringNode.nodeName) {
                               errorMessage = faultStringNode.text;
                               break;
                           }
                       }
                       break;
                   }
               }
           }
           catch (e) { };
        }
        return new Error(errorMessage);
     },
 __namespace: true
};




To understand how to parse the response please review my post on using the DOM parser.
Now you can call the SDK.SAMPLES.AssignRequest function from your form jscript handler.  
Thats all there is to it!

I hope this helps!

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