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Plugin to calculate age from birthday C#

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Hi, I want to know the code to do this, i'm learning CRM by myself and I am a little loss, the basic code in C# is like this:

DateTime birthdate = new DateTime(1991, 9, 05);
DateTime today = DateTime.Today;
int age = today.Year - birthdate.Year;;

Console.WriteLine(age);

I want to know how would it be to get the attribute birthday in a plugin and calculate age from that, and then set the new value.

I already did it with JavaScript, now I want to do it with C# (plugin).

Thanks in advance!

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LeoAlt 16,331 Moderator on at

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Hi partner,

If you want to use C# to do this, you could refer to my code here.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ServiceModel;
using Microsoft.Xrm.Sdk;

namespace plugin2._0
{
    public class Birthday : IPlugin
    {
        public void Execute(IServiceProvider serviceProvider)
        {
            // Obtain the tracing service
            ITracingService tracingService =
            (ITracingService)serviceProvider.GetService(typeof(ITracingService));

            // Obtain the execution context from the service provider.
            IPluginExecutionContext context = (IPluginExecutionContext)
                serviceProvider.GetService(typeof(IPluginExecutionContext));

            // The InputParameters collection contains all the data passed in the message request.
            if (context.InputParameters.Contains("Target") &&
                context.InputParameters["Target"] is Entity)
            {
                // Obtain the target entity from the input parameters.
                Entity entity = (Entity)context.InputParameters["Target"];

                // Obtain the organization service reference which you will need for
                // web service calls.
                IOrganizationServiceFactory serviceFactory =
                    (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
                IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);

                try
                {
                    var birthday = entity["new_birthday1"].ToString();
                    var dateBirthday = Convert.ToDateTime(birthday);
                    var now = DateTime.Now;
                    int age = now.Year - dateBirthday.Year;
                    entity["new_age"] = age;

                    service.Update(entity);

                }

                catch (FaultException<OrganizationServiceFault> ex)
                {
                    throw new InvalidPluginExecutionException(ex.InnerException.ToString(), ex);
                }

                catch (Exception ex)
                {
                    tracingService.Trace("FollowUpPlugin: {0}", ex.ToString());
                    throw;
                }
            }
        }
    }
}

You could register this plugin in pre-operation or post-operation update the record.

For more description about plug-in, please refer to the following links.

https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/org-service/entity-operations-update-delete

https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/org-service/samples/basic-followup-plugin

Hope it helps.

Best Regards,

Leo

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Community Member on at

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Thank you very much, but are you getting the birthday attribute from the contact's field? Because it seems that you are creating a new one:

try

{

var birthday = entity["new_birthday1"].ToString();

var dateBirthday = Convert.ToDateTime(birthday);

var now = DateTime.Now;

int age = now.Year - dateBirthday.Year;

entity["new_age"] = age;

service.Update(entity);

}

Or should I put birthdate instead of "new_birthday1"?

Again, thank you very much!

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Community Member on at

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@Leo Zhang

Thank you very much, but are you getting the birthday attribute from the contact's field? Because it seems that you are creating a new one:

try

{

var birthday = entity["new_birthday1"].ToString();

var dateBirthday = Convert.ToDateTime(birthday);

var now = DateTime.Now;

int age = now.Year - dateBirthday.Year;

entity["new_age"] = age;

service.Update(entity);

}

Or should I put birthdate instead of "new_birthday1"?

Again, thank you very much!

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LeoAlt 16,331 Moderator on at

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Hi partner,

The "new_birthday1" was a new custom field created by myself. You should replace the correct field name in your instance.

Best Regards,

Leo

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LeoAlt 16,331 Moderator on at

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Hi partner,

Sorry that the last answer I provided may casue some issues.

I've updated the code here.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Xrm.Sdk.Discovery;

namespace plugin2._0
{
    public class UpdateFax : IPlugin
    {
        public void Execute(IServiceProvider serviceProvider)
        {
            //Extract the tracing service for use in debugging sandboxed plug-ins.
            ITracingService tracingService =
                (ITracingService)serviceProvider.GetService(typeof(ITracingService));

            // Obtain the execution context from the service provider.
            IPluginExecutionContext context = (IPluginExecutionContext)
                serviceProvider.GetService(typeof(IPluginExecutionContext));
            // Get a reference to the Organization service.
            IOrganizationServiceFactory factory =
                (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));

            IOrganizationServiceFactory servicefactory =
                (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
            IOrganizationService client = servicefactory.CreateOrganizationService(context.UserId);

            // The InputParameters collection contains all the data passed in the message request.
            if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity)
            {
                // Obtain the target entity from the input parameters.
                Entity entity = (Entity)context.InputParameters["Target"];

                // Verify that the target entity represents an account.
                // If not, this plug-in was not registered correctly.
                if (context.Depth > 1) return;
                if (entity.LogicalName == "account")
                {
                    try
                    {
                        string birthday = string.Empty;
                        if (entity.Attributes.Contains("new_birthday1"))
                        {
                            birthday = entity.GetAttributeValue<DateTime>("new_birthday1").ToString();
                        }
                        var dateBirthday = Convert.ToDateTime(birthday);
                        var now = DateTime.Now;
                        int age = now.Year - dateBirthday.Year;
                        entity["new_age"] = age;
                    }
                    catch (Exception e)
                    {
                        tracingService.Trace("accountPlugin: {0}", e.ToString());
                        throw new InvalidPluginExecutionException(e.Message);
                    }
                }
                else
                    return;

            }

        }

    }
}

Hope it helps.

Best Regards,

Leo

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