Hi,

Just sharing a sample code that could be used to cancel all the open activities for a particular record.

 private void CancelChildActivities(Guid entityRecordGuid, IOrganizationService service)
 {
 QueryExpression qe = new QueryExpression();
 qe.ColumnSet = new ColumnSet(new string[] { "activityid", "activitytypecode" });
 qe.EntityName = "activitypointer";

FilterExpression filterStateCode = new FilterExpression();
 filterStateCode.FilterOperator = LogicalOperator.Or;
 filterStateCode.AddCondition("statecode", ConditionOperator.Equal, "Open");
 filterStateCode.AddCondition("statecode", ConditionOperator.Equal, "Scheduled");

FilterExpression filter = new FilterExpression();
 filter.FilterOperator = LogicalOperator.And;
 filter.AddCondition("regardingobjectid", ConditionOperator.Equal, entityRecordGuid);
 filter.AddFilter(filterStateCode);

qe.Criteria = filter;

RetrieveMultipleRequest request = new RetrieveMultipleRequest();
 request.Query = qe;
 RetrieveMultipleResponse response = (RetrieveMultipleResponse)service.Execute(request);

foreach (Entity activity in response.EntityCollection.Entities)
 {
 CancelActivity(activity, service);
 }

}

 private void CancelActivity(Entity entity, IOrganizationService service)
 {
 EntityReference moniker = new EntityReference();

if (entity.LogicalName == "activitypointer")
 {
 if (entity.Attributes.Contains("activityid") & entity.Attributes.Contains("activitytypecode"))
 {
 moniker.LogicalName = entity.Attributes["activitytypecode"].ToString();
 moniker.Id = (Guid)entity.Attributes["activityid"];

SetStateRequest request = new SetStateRequest();
 request.EntityMoniker = moniker;
 request.State = new OptionSetValue(2);
 request.Status = new OptionSetValue(-1);
 SetStateResponse response = (SetStateResponse)service.Execute(request);
 }
 }

}

Bye.

Hi,

For disabling view button, disabling “look for” option or hiding Button in lookup we can make use of JavaScript.

We need to refer to our lookup through DOM in our onload event and set its attributes (unsupported).

Suppose our lookup id is customerid

document.getElementById(“customerid”).setAttribute(“disableViewPicker“, “1”);

document.getElementById(“customerid”).setAttribute(“disableQuickFind“, “1”); 

document.getElementById(“customerid”).setAttribute(“_lookupbrowse“, “1”); 

Hiding New Button

function myHideLookupButton()

{

crmForm.all.customerid.attachEvent(“setadditionalparams“,HideButton);

}

function HideButton()

{

crmForm.all.customerid.AddParam(“ShowNewButton“, 0);

}

Bye.