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 If we use an alias in our fetchxml query it will not retrieve the alias attribute like the default query. String inputstdssAttendeeFetchXML = $@"<fetch version='1.0' output-format='xml-platform' mapping='logical' distinct='false'> <entity name='std_stdssattendee' > <attribute name='std_attendeeroleid' /> <filter> <condition attribute='std_stdstdssid' operator='eq' value='{ inputstdss.GetAttributeValue<Guid>("std_stdstdssid")}' /> <condition attribute='statecode' operator='eq' value='0' /> <condition attribute='std_attendeeroleid' operator='not-null' />

 If we want to call another plugin or action from plugin we can use this approach. // Call std Copy action into plugin OrganizationRequest request = new OrganizationRequest("std_Copystd"); request["Target"] = stdEntityReference; OrganizationResponse response = localContext.OrganizationService.Execute(request); string clonestdresultresult = (string)response.Results["Result"]; string ClonestdId = (string)response.Results["CloneId"];

 we can update any entity record without retrieving  String stdattendeeFetchXML = $@"<fetch version='1.0' output-format='xml-platform' mapping='logical' distinct='false'> <entity name='std_stdattendee' > <attribute name='std_contactid' /> <attribute name='std_attendeecategory' /> <attribute name='std_attendeeroleid' /> <attribute name='std_name' /> <filter type='and' > <condition attribute='std_stdid' operator='eq' value='{ClonestdId}' /> <condition attribute='statecode' operator='eq' value='0' />

 If you want to get all selected values of a subgrid you can try with this sample. var gridContext = formContext.getControl("AttendeesSubgrid"); var allSelectedRows = gridContext.getGrid().getSelectedRows(); var attendeeList = []; allSelectedRows.forEach(GetSelectedRecord); function GetSelectedRecord(item) { var rowData = item._entityId; var attendiee = rowData.guid; attendeeList.push(attendiee); }

  Retrieve Entity record data into plugin var inputcontract = (localContext.InputParameters["Target"] as Entity).ToEntity<student_contract>(); // retrive entity data Account accountEntity = localContext.OrganizationService.Retrieve( Account.EntityLogicalName, inputcontract.student_Account.Id, new ColumnSet(new String[] { "student_eventseriesid" })).ToEntity<Account>(); // You can also set the value without entity context ["student_eventseriesid"] = accountEntity.GetAttributeValue<EntityReference>("student_eventseriesid")

 This is very common that some times we need to set value into another field based on change event or into form load event. Normally we define the code into load event and into change event. We can replace the load event using fireOnChange(); if (formContext.getAttribute("studentid")) { formContext.getAttribute("studentid").fireOnChange(); } If this field value has change event then you do not need to define into load event. fireOnChange() event will work for load event.

 In my case, I need to add custom filtering when I select a lookup it will populate another lookup. when the user will click on the search icon it will show only filter data.  I was following:  https://docs.microsoft.com/en-us/powerapps/developer/model-driven-apps/clientapi/reference/controls/addpresearch sample code: var demoLAB = demoLAB || {}; var classId; demoLAB.Stuedent = { Form: { Load: function (executionContext) { 'use strict'; var formContext = executionContext.getFormContext(); this.attachEvents(executionContext); }, attachEvents: function (executionContext) { 'use strict'; var formContext = executionContext.getFormContext(); var form = demoLAB.Stuedent.Form; // Student Change Event formContext.getAttribute("demo_studentId").addOnChange(form.studentOnChange); }, studentOnChange: function (executionContext) { &

 You can lock the form field using javascript. if (formContext.getControl("acconutid").getAttribute()!= null) formContext.getControl("acconutid").setDisabled(true);

 Generate the xml query using xrmtoolbox and try with this code sample. String eventsessionFetchXML = $@"<fetch version='1.0' output-format='xml-platform' mapping='logical' distinct='false'> <entity name='baseevt_eventsession' > <attribute name='baseevt_eventid' /> <attribute name='baseevt_sessionenddatetime' /> <attribute name='baseevt_sessionstartdatetime' /> <attribute name='baseevt_name' /> <attribute name='baseevt_description' /> <filter> <condition attribute='baseevt_eventid' operator='eq' value='{inputEntity.Id.ToString()}' /> </filter> </entity> </fetch>"; var eventSessionresult =

  If you want to call plugin from ribbon button click event with custom action, you can use this script. // Ribbon button click event call custom action executeCloneEvent: function (formContext, eventId) { var eventId = formContext.data.entity.getId(); var entityrecordId = eventId.substr(1, eventId.length - 2); var request = { entity: { entityType: "account", id: entityrecordId}, getMetadata: function () { return { boundParameter: "entity", parameterTypes: { "entity": { "typeName": "account", "structuralProperty": 5 }, }, operationType: 0, operationName: "acct_CloneEvent" }; } }; // Calling Plugin Xrm.WebApi.online.execute(request).then(function (result) {