UpdatePanelTriggerCollection Class
Represents a collection of UpdatePanelTrigger objects for an UpdatePanel control.
System.Collections.ObjectModel::Collection<UpdatePanelTrigger>
System.Web.UI::UpdatePanelTriggerCollection
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The UpdatePanelTriggerCollection type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | UpdatePanelTriggerCollection | Initializes a new instance of the UpdatePanelTrigger collection class. |
| Name | Description | |
|---|---|---|
![]() | Count | Gets the number of elements actually contained in the Collection<T>. (Inherited from Collection<T>.) |
![]() | Item | Gets or sets the element at the specified index. (Inherited from Collection<T>.) |
![]() | Items | Gets a IList<T> wrapper around the Collection<T>. (Inherited from Collection<T>.) |
![]() | Owner | Gets a reference to the UpdatePanel control that the UpdatePanelTriggerCollection belongs to. |
| Name | Description | |
|---|---|---|
![]() | Add | Adds an object to the end of the Collection<T>. (Inherited from Collection<T>.) |
![]() | Clear | Removes all elements from the Collection<T>. (Inherited from Collection<T>.) |
![]() | ClearItems | Removes all elements from the UpdatePanelTriggerCollection. (Overrides Collection<T>::ClearItems().) |
![]() | Contains | Determines whether an element is in the Collection<T>. (Inherited from Collection<T>.) |
![]() | CopyTo | Copies the entire Collection<T> to a compatible one-dimensional Array, starting at the specified index of the target array. (Inherited from Collection<T>.) |
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetEnumerator | Returns an enumerator that iterates through the Collection<T>. (Inherited from Collection<T>.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | IndexOf | Searches for the specified object and returns the zero-based index of the first occurrence within the entire Collection<T>. (Inherited from Collection<T>.) |
![]() | Insert | Inserts an element into the Collection<T> at the specified index. (Inherited from Collection<T>.) |
![]() | InsertItem | Inserts an UpdatePanelTrigger object into the UpdatePanelTriggerCollection object at the specified index. (Overrides Collection<T>::InsertItem(Int32, T).) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | Remove | Removes the first occurrence of a specific object from the Collection<T>. (Inherited from Collection<T>.) |
![]() | RemoveAt | Removes the element at the specified index of the Collection<T>. (Inherited from Collection<T>.) |
![]() | RemoveItem | Removes the element at the specified index of the UpdatePanelTriggerCollection. (Overrides Collection<T>::RemoveItem(Int32).) |
![]() | SetItem | Replaces the trigger at the specified index in the UpdatePanelTriggerCollection object. (Overrides Collection<T>::SetItem(Int32, T).) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | ICollection::CopyTo | Copies the elements of the ICollection to an Array, starting at a particular Array index. (Inherited from Collection<T>.) |
![]() ![]() | ICollection<T>::IsReadOnly | Gets a value indicating whether the ICollection<T> is read-only. (Inherited from Collection<T>.) |
![]() ![]() | ICollection::IsSynchronized | Gets a value indicating whether access to the ICollection is synchronized (thread safe). (Inherited from Collection<T>.) |
![]() ![]() | ICollection::SyncRoot | Gets an object that can be used to synchronize access to the ICollection. (Inherited from Collection<T>.) |
![]() ![]() | IEnumerable::GetEnumerator | Returns an enumerator that iterates through a collection. (Inherited from Collection<T>.) |
![]() ![]() | IList::Add | Adds an item to the IList. (Inherited from Collection<T>.) |
![]() ![]() | IList::Contains | Determines whether the IList contains a specific value. (Inherited from Collection<T>.) |
![]() ![]() | IList::IndexOf | Determines the index of a specific item in the IList. (Inherited from Collection<T>.) |
![]() ![]() | IList::Insert | Inserts an item into the IList at the specified index. (Inherited from Collection<T>.) |
![]() ![]() | IList::IsFixedSize | Gets a value indicating whether the IList has a fixed size. (Inherited from Collection<T>.) |
![]() ![]() | IList::IsReadOnly | Gets a value indicating whether the IList is read-only. (Inherited from Collection<T>.) |
![]() ![]() | IList::Item | Gets or sets the element at the specified index. (Inherited from Collection<T>.) |
![]() ![]() | IList::Remove | Removes the first occurrence of a specific object from the IList. (Inherited from Collection<T>.) |
Triggers in the UpdatePanelTrigger collection are specified by using the UpdatePanelTrigger Collection Editor in the designer or by adding them declaratively as <Triggers> elements inside the UpdatePanel control. You can add two types of triggers:
An AsyncPostBackTrigger object that can be used to specify that a control can cause an asynchronous postback and refresh the update panel's contents. The AsyncPostBackTrigger object is used for controls outside an update panel or controls that are not immediate child controls of an UpdatePanel control.
A PostBackTrigger object that can be used to specify that a postback control inside an UpdatePanel control can cause a synchronous postback and a full-page refresh.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.






