Retrieve Dynamics CRM audit summary with CRM SDK
If you need to obtain the audit history list of a particular entity, you can query the audit logs using CRM SDK and C# provided Auditing has been enabled in Dynamics CRM.
You can also filter the logs using a specific attribute to get retrieve attribute history.
For example, if I want to know what changes had been made to name attribute of a particular account, I can do this by retrieving the data change history using RetrieveRecordChangeHistoryRequest Class
Full source code in C# is given below with inline comments:
//Create a new RetrieveAttributeChangeHistoryRequest
RetrieveAttributeChangeHistoryRequest req = new RetrieveAttributeChangeHistoryRequest();
//Set the target Entity
req.Target = new EntityReference(“account“, new Guid(“296C4D23-B8A1-45D8-9126-ECCA91A57B2C“));
//Set the attribute you want to retrieve specifically
req.AttributeLogicalName = “new_name“;
//Execute the request against the OrgService
RetrieveAttributeChangeHistoryResponse resp = (RetrieveAttributeChangeHistoryResponse)orgService.Execute(req);
AuditDetailCollection details = resp.AuditDetailCollection;
//Iterate through the AuditDetails
foreach (var detail in details.AuditDetails)
{
//Important: the AuditDetailCollection.AuditDetails doesn’t always contain the type of AttributeAuditDetail, so make sure it is of correct type before casting
if (detail.GetType() == typeof(AttributeAuditDetail))
{
AttributeAuditDetail attributeDetail = (AttributeAuditDetail)detail;
String oldValue = “(no value)“, newValue = “(no value)“;
if (attributeDetail.OldValue.Contains(“new_name“))
oldValue = attributeDetail.OldValue[“new_name“].ToString();
if (attributeDetail.NewValue.Contains(“new_name“))
newValue = attributeDetail.NewValue[“new_name“].ToString();
//TODO: Use the old value and new value in the Business Logic
}
}
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