Programmatically enable/disable Scheduling on a SPList

SharePoint API does not allow to programmatically modify scheduling on a List. 

So here is the code that does this: 

 

using System; 

using System.Collections.Generic; 

using System.Linq; 

using System.Text; 

using System.Reflection; 

using Microsoft.SharePoint; 

namespace YourNameSpace{ 

/// <summary> 

/// Class for operation that enables operations that are not enabled via standard SharePoint API 

/// </summary> 

public static class PublishingUtilities 

{ 

const string SharePointPublishingAssemblyName = "Microsoft.SharePoint.Publishing, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"; 

const string ScheduledItemClassName = "Microsoft.SharePoint.Publishing.ScheduledItem"; 

/// <summary> 

/// Registers Scheduling on a List 

/// </summary> 

/// <param></param> 

public static void EnableSchedulingEventOnList(this SPList list) 

{ 

Assembly assembly = Assembly.Load(SharePointPublishingAssemblyName); 

Type type = assembly.GetType(ScheduledItemClassName); 

MethodInfo dynMethod = type.GetMethod("RegisterSchedulingEventOnList", BindingFlags.NonPublic | BindingFlags.Static); 

dynMethod.Invoke(type, new object[] { list }); 

} 

/// <summary> 

/// Unregisters Scheduling on a List 

/// </summary> 

/// <param></param> 

public static void DisableSchedulingOnList(this SPList list) 

{ 

Assembly assembly = Assembly.Load(SharePointPublishingAssemblyName); 

Type type = assembly.GetType(ScheduledItemClassName); 

MethodInfo dynMethod = type.GetMethod("DisableSchedulingOnList", BindingFlags.NonPublic | BindingFlags.Static); 

dynMethod.Invoke(type, new object[] { list }); 

} 

/// <summary> 

/// Gets scheduling state on the List 

/// </summary> 

/// <param></param> 

public static bool GetIsSchedulingEventRegisteredOnList(this SPList list) 

{ 

Assembly assembly = Assembly.Load(SharePointPublishingAssemblyName); 

Type type = assembly.GetType(ScheduledItemClassName); 

MethodInfo dynMethod = type.GetMethod("GetIsSchedulingEventRegisteredOnList", BindingFlags.NonPublic | BindingFlags.Static); 

bool? result = dynMethod.Invoke(type, new object[] { list }) as bool?; 

if (result != null) 

return result.Value; 

else 

throw new ArgumentException("Call of the function GetIsSchedulingEventRegisteredOnList failed"); 

} 

} 

} 

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