Call action by using plugin and JavaScript?

Create a action, with input parameters  First Name and Last name, Out put Full name. 
create a plugin on custom action call, read the inputs and prepare full name = First name + last Name.
using System? 

Send the output to action. Call this action from JavaScript , get the output and set fullname field value. 

Trigger the JavaScript on- On save of your custom entity . Create FirstName, LastName and FullName Fields in your custom entity.

Ans.

Step1: For this fist need to create one action with 2 inputs and one output

Step2: After creating action we need to prepare one plugin that combining the both fist name and last name

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using Microsoft.Xrm.Sdk;

namespace CallActionUsingPlugin

{

    public class fullName : IPlugin

    {

        public void Execute(IServiceProvider serviceProvider)

        {

            IPluginExecutionContext context = (IPluginExecutionContext)serviceProvider.GetService(typeof(IPluginExecutionContext));

            IOrganizationServiceFactory factory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));

            IOrganizationService service = factory.CreateOrganizationService(context.UserId);

            ITracingService tracing = (ITracingService)serviceProvider.GetService(typeof(ITracingService));

            try

            {

                string firstName = context.InputParameters.Contains("FirstName") ? (string)context.InputParameters["FirstName"] : "field is not present";

                tracing.Trace("first name is {0} ", firstName);//crm_lastname

                string lastName = context.InputParameters.Contains("LastName") ? (string)context.InputParameters["LastName"] : "field is not present";

                tracing.Trace("last name is {0} ", lastName);

                string fullName = firstName + " " + lastName;

                tracing.Trace("full name is {0}  ", fullName);

                context.OutputParameters["FullName"] = fullName;

            }

            catch (Exception ex)

            {

                throw new InvalidPluginExecutionException(ex.Message);

            }

        }

    }

}

Give the same names what You have given in action, so that we can read the inputs and set the output for parameter.

After Creating plugin, create a JavaScript to call the action by using XRM toolbox

In XRM Tool Box to check Result click on XHR and Inside the XHR Click on Move code later click on Execute code then automatically Result will come as FullName: Given Data (or) FullName: null

 

function callActionUsingJavascript(executionContext) {

var formContext = executionContext.getFormContext();   //crm_name crm_lastname crm_fullname

var fname = formContext.getAttribute("effizz_name").getValue();

console.log(fname);

var lname = formContext.getAttribute("effizz_lastname").getValue();

console.log(lname);

//entity record guid 

var CurrentRecordId = formContext.data.entity.getId();

console.log(CurrentRecordId);

var CurrentRecordIdstrFormat = CurrentRecordId.replace(/[{}]/g, "");

//the record which was came in currentrecordId /[{}]/g with these will replace and send it to ""

//Start Paste 

var execute_new_FullNamePlugin_Request = {

// this is var execute_new_FullNamePlugin_Request = is varible declaration

// Parameters

entity: { entityType: "effizz_customjs", id: CurrentRecordIdstrFormat }, // entity

FirstName: fname, // Edm.String

LastName: lname, // Edm.String

getMetadata: function () {

return {

boundParameter: "entity",

parameterTypes: {

entity: { typeName: "mscrm.effizz_customjs", structuralProperty: 5 },

FirstName: { typeName: "Edm.String", structuralProperty: 1 },

LastName: { typeName: "Edm.String", structuralProperty: 1 }

},

operationType: 0, operationName: "new_FullNamePlugin"

};

}

};

//Xrm.WebApi.execute in parameters the variable was taking i.e, execute_new_FullNamePlugin_Request 

Xrm.WebApi.execute(execute_new_FullNamePlugin_Request).then(

function success(response) {

if (response.ok) { return response.json(); }

}

).then(function (responseBody) {

var result = responseBody;

console.log(result);

// Return Type: mscrm.new_FullNamePluginResponse

// Output Parameters

var fullname = result["FullName"]; // Edm.String effi_fullname

console.log(fullname);

formContext.getAttribute("effizz_fullname").setValue(fullname);

}).catch(function (error) {

console.log(error.message);

});

//End Paste

}

In XRM tool the code you should take from Xrm.Webapi

After calling action using JavaScript, create web resource and the function on save of the form  

After that register the plugin in plugin register tool and call the action in message       

Now go the entity and create a record with first name and last name and save the record and check full name is coming or not