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feat: Reflection method for unsubscribing from an event.

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This commit is contained in:
Chris Cameron
2018-04-12 14:16:53 -04:00
parent 2b49354fd6
commit bc1ecf8b8e
1 changed files with 21 additions and 4 deletions
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25
ICD.Common.Utils/ReflectionUtils.cs
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@@ -418,10 +418,10 @@ namespace ICD.Common.Utils
/// <summary>
/// Subscribes to the event on the given instance using the handler and callback method.
/// </summary>
/// <param name="instance"></param>
/// <param name="eventInfo"></param>
/// <param name="handler"></param>
/// <param name="callback"></param>
/// <param name="instance">The instance with the event. Null for static types.</param>
/// <param name="eventInfo">The EventInfo for the event.</param>
/// <param name="handler">The instance with the callback MethodInfo. Null for static types.</param>
/// <param name="callback">The MethodInfo for the callback method.</param>
/// <returns></returns>
public static Delegate SubscribeEvent(object instance, EventInfo eventInfo, object handler, MethodInfo callback)
{
@@ -435,5 +435,22 @@ namespace ICD.Common.Utils
eventInfo.AddEventHandler(instance, output);
return output;
}
/// <summary>
/// Unsubscribes from the event on the given instance.
/// </summary>
/// <param name="instance">The instance with the event. Null for static types.</param>
/// <param name="eventInfo">The EventInfo for the event.</param>
/// <param name="callback">The Delegate to be removed from the event.</param>
public static void UnsubscribeEvent(object instance, EventInfo eventInfo, Delegate callback)
{
if (eventInfo == null)
throw new ArgumentNullException("eventInfo");
if (callback == null)
throw new ArgumentNullException("callback");
eventInfo.RemoveEventHandler(instance, callback);
}
}
}