Creating a simple Callout in Microsoft Dynamics CRM 3.0
Views (366)
Nishant Rana
11,325
Microsoft Employee
Like
Share
ReportCreate a class library project in Visual Studio 2003.
Add reference to the following assembly Microsoft.Crm.Platform.Callout.Base.dll.
Inherit the Microsoft.Crm.Callout.CrmCalloutBase class.
Now override the event against which you want to put your business logic.
Add web reference to CrmService
http://servername:port/mscrmservices/2006/crmservice.asmx
Set up the CrmService properties like url, credentials and CallerIdValue
CrmService service = new CrmService();
service.Url = “http://servername: port /mscrmservices/2006/CrmServiceWsdl.aspx”;
service.Credentials = System.Net.CredentialCache.DefaultCredentials;
service.CallerIdValue = new CallerId();
service.CallerIdValue.CallerGuid = userContext.UserId;
For our PostUpdate event handler we can see that the values for preImageEntityXml as well as postImageEntityXml are passed as a string which essentialy is a xml.
public override void PostUpdate(
CalloutUserContext userContext,
CalloutEntityContext entityContext,
string preImageEntityXml,
string postImageEntityXml
)
So first we will convert it into a dynamic entity
DynamicEntity entityPost=ConvertToDynamicEntity(postImageEntityXml);
The definition of the ConvertToDynamicEntity function is
private static DynamicEntity ConvertToDynamicEntity(string xml)
{
TextReader sr = new StringReader(xml);
XmlRootAttribute root = new XmlRootAttribute(“BusinessEntity”);
root.Namespace = “http://schemas.microsoft.com/crm/2006/WebServices”;
XmlSerializer xmlSerializer = new XmlSerializer(typeof(BusinessEntity), root);
BusinessEntity entity = (BusinessEntity)xmlSerializer.Deserialize(sr);
return (DynamicEntity) entity;
}
We’ll deserialize the xml output to get an instance of DynamicEntity.
To make it more easy to work with the properties we can make use of the following class PropertiyDictionary in our callout.
We’ll pass the instance of the newly created dynamic entity to the PropertyDictionary’s constructor.
PropertyDictionary properties=new PropertyDictionary(entityPost);
Now to work with properties we can do something like this
// For CrmDateTimeProperty
if (properties.Contains(“actualclosedate”))
{
CrmDateTimeProperty acd = (CrmDateTimeProperty)properties[“actualclosedate”];
actualclosedate = acd.Value;
}
// For CrmMoneyProperty
if (properties.Contains(“new_estimatedrevenue”))
{
CrmMoneyProperty ner = (CrmMoneyProperty)properties[“new_estimatedrevenue”];
new_estimatedrevenue = ner.Value;
}
// For PicklistProperty
if (properties.Contains(“salesstagecode”))
{
PicklistProperty salesstagecode = (PicklistProperty)properties[“salesstagecode”];
salesstage = salesstagecode.Value.Value.ToString();
}
That’s it…
This was originally posted here.
*This post is locked for comments