This illustration shows how to retrieve the dependencies to delete a solution component in Microsoft Dynamics CRM 2011 with RetrieveDependenciesForDeleteRequest. This example will be given in Jscript (SOAP) and in C# (.NET).
Important Note: The metadata browser can be very useful in finding the MetadataId of a component to be used in this call
Ok, here is what the code looks like!
RetrieveDependenciesForDeleteRequest req = new RetrieveDependenciesForDeleteRequest();
req.ComponentType = (int)SolutionComponentType.Entity;
//use the metadata browser or a retrieveentity request to get the MetadataId for the entity
req.ObjectId = new Guid("70816501-edb9-4740-a16c-6a5efbc05d84");
RetrieveDependenciesForDeleteResponse resp = (RetrieveDependenciesForDeleteResponse)service.Execute(req);
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
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 ServicePath = "/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 + ServicePath;
},
RetrieveDependenciesForDeleteRequest: 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:RetrieveDependenciesForDeleteRequest\" 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>ObjectId</c:key>";
requestMain += " <c:value i:type=\"d:guid\" xmlns:d=\"http://schemas.microsoft.com/2003/10/Serialization/\">70816501-edb9-4740-a16c-6a5efbc05d84</c:value>";
requestMain += " </a:KeyValuePairOfstringanyType>";
requestMain += " <a:KeyValuePairOfstringanyType>";
requestMain += " <c:key>ComponentType</c:key>";
requestMain += " <c:value i:type=\"d:int\" xmlns:d=\"http://www.w3.org/2001/XMLSchema\">1</c:value>";
requestMain += " </a:KeyValuePairOfstringanyType>";
requestMain += " </a:Parameters>";
requestMain += " <a:RequestId i:nil=\"true\" />";
requestMain += " <a:RequestName>RetrieveDependenciesForDelete</a:RequestName>";
requestMain += " </request>";
requestMain += " </Execute>";
requestMain += " </s:Body>";
requestMain += "</s:Envelope>";
var req = new XMLHttpRequest();
req.open("POST", SDK.SAMPLES._getServerUrl(), true)
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.RetrieveDependenciesForDeleteResponse(req, successCallback, errorCallback); };
req.send(requestMain);
},
RetrieveDependenciesForDeleteResponse: 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.RetrieveDependenciesForDeleteRequest function from your form jscript handler.
Thats all there is to it!
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