Bazen plugin yazımında pre deki değişkeni postta kullanmak isteriz. Bazen de başka bir plugin üzerindeki değişkeni kullanmak isteriz. Bunun için CRM in context i üzrindeki SharedVariables özelliğini kullanıyoruz.
Aynı entiti üzerinde çalışan pluginler için örnek kod yazımı
using System;
using Microsoft.Xrm.Sdk;
namespace Microsoft.Crm.Sdk.Samples
{
/// <summary>
/// A plug-in that sends data to another plug-in through the SharedVariables
/// property of IPluginExecutionContext.
/// </summary>
/// <remarks>Register the PreEventPlugin for a pre-event and the
/// PostEventPlugin plug-in on a post-event.
/// </remarks>
public class PreEventPlugin : IPlugin
{
public void Execute(IServiceProvider serviceProvider)
{
// Obtain the execution context from the service provider.
Microsoft.Xrm.Sdk.IPluginExecutionContext context = (Microsoft.Xrm.Sdk.IPluginExecutionContext)
serviceProvider.GetService(typeof(Microsoft.Xrm.Sdk.IPluginExecutionContext));
// Create or retrieve some data that will be needed by the post event
// plug-in. You could run a query, create an entity, or perform a calculation.
//In this sample, the data to be passed to the post plug-in is
// represented by a GUID.
Guid contact = new Guid("{74882D5C-381A-4863-A5B9-B8604615C2D0}");
// Pass the data to the post event plug-in in an execution context shared
// variable named PrimaryContact.
context.SharedVariables.Add("PrimaryContact", (Object)contact.ToString());
}
}
public class PostEventPlugin : IPlugin
{
public void Execute(IServiceProvider serviceProvider)
{
// Obtain the execution context from the service provider.
Microsoft.Xrm.Sdk.IPluginExecutionContext context = (Microsoft.Xrm.Sdk.IPluginExecutionContext)
serviceProvider.GetService(typeof(Microsoft.Xrm.Sdk.IPluginExecutionContext));
// Obtain the contact from the execution context shared variables.
if (context.SharedVariables.Contains("PrimaryContact"))
{
Guid contact =
new Guid((string)
context.SharedVariables["PrimaryContact"]);
// Do something with the contact.
}
}
}
}
İki farklı entiti üzerinde çalışan plugin için ;
context.ParentContext.SharedVariables["PrimaryContact"] şeklinde değerleri alabilirsiniz.
