Sitecore - Set Reminder using Wrokflow Action

Current Environment: Sitecore 7.2 rev 140526

Requirement:
Need to set a reminder programmatically, from a custom workflow action.

Sitecore Step 1: Create a workflow action within the workflow which is set to that item template.

Create a workflow. (I used the default sample workflow).
You can find how to create the workflow action in sitecore cookbook: http://sdn.sitecore.net/upload/sitecore6/workflow_cookbook_a4.pdf.


Sitecore Step 2: Provide Type String

Select the created workflow action.
In the Type String field provide the following details.
namespace.class_name, dll_name
Ex: TestWorkflow.SetReminder, TestWorkflow

Coding

    public class SetReminder
    {
        public void Process(WorkflowPipelineArgs args)
        {
            var item = args.DataItem;
            if (item != null)
            {
                using (new Sitecore.SecurityModel.SecurityDisabler())
                {
                    item.Editing.BeginEdit();
                    try
                    {
                        item.Fields["__reminder text"].Value = "Review this item";
                        Sitecore.Data.Fields.DateField dateField = item.Fields["__reminder date"];
                        DateTime date = DateTime.Today.AddYears(1);

                        if (dateField != null)
                        {
                            dateField.Value = string.Format("{0}{1}{2}T{3}", date.Year, date.Month, date.Day,
                                date.ToString("hhmmss"));
                        }
                    }
                    finally
                    {
                        item.Editing.EndEdit();
                    }
                }
            }

        }