MapAreasCollection MapAreasCollection MapAreasCollection MapAreasCollection Class

Definition

Represents a collection of MapArea objects.

public ref class MapAreasCollection : System::Web::UI::DataVisualization::Charting::ChartElementCollection<System::Web::UI::DataVisualization::Charting::MapArea ^>
public class MapAreasCollection : System.Web.UI.DataVisualization.Charting.ChartElementCollection<System.Web.UI.DataVisualization.Charting.MapArea>
type MapAreasCollection = class
    inherit ChartElementCollection<MapArea>
Public Class MapAreasCollection
Inherits ChartElementCollection(Of MapArea)
Inheritance

Remarks

The MapAreasCollection class represents a collection of MapArea objects, which in turn represent map areas of a client-side image map, such as HTML <AREA> tags.

This class is used in two ways:

  • As the MapAreas property of the root Chart object, which is used for custom map areas. These custom map areas have a user-defined shape and coordinates, and can be added at either design time or at run time using the overloaded M:System.Web.UI.DataVisualization.MapAreasCollection.Add or M:System.Web.UI.DataVisualization.MapAreasCollection.Insert methods.

  • In the CustomizeMapAreas event, as the MapAreaItems property of the CustomizeMapAreasEventArgs parameter. This MapAreaItems property stores MapArea objects that have automatically been created for a chart object (map areas are automatically created when an applicable chart element, such as a data point, series, legend item or stripline object, has a non-empty ToolTip, Url or MapAreaAttributes property). In this case the dimensions and location of a map area are determined by the chart element. The MapAreaItems property enables you to delete or modify these automatically generated map areas, and can also be used to add custom map areas.

A client-side image map will only be created at run time if the IsMapEnabled property of the root Chart object is true. This is the default.

Important

To create an image map using the previously described MapArea objects, the RenderType property of the Chart object must be set to ImageTag. It is possible to create an image map when using binary streaming, but a special technique must be used.

Constructors

MapAreasCollection() MapAreasCollection() MapAreasCollection() MapAreasCollection()

Initializes a new instance of the MapAreasCollection class.

Methods

Add(T) Add(T) Add(T) Add(T)

Adds an object to the end of the Collection<T>.

(Inherited from Collection<T>)
Clear() Clear() Clear() Clear()

Removes all elements from the Collection<T>.

(Inherited from Collection<T>)
ClearItems() ClearItems() ClearItems() ClearItems()

Removes all elements from the Collection<T>.

(Inherited from ChartElementCollection<T>)
Contains(T) Contains(T) Contains(T) Contains(T)

Determines whether an element is in the Collection<T>.

(Inherited from Collection<T>)
CopyTo(T[], Int32) CopyTo(T[], Int32) CopyTo(T[], Int32) CopyTo(T[], Int32)

Copies the entire Collection<T> to a compatible one-dimensional Array, starting at the specified index of the target array.

(Inherited from Collection<T>)
Dispose() Dispose() Dispose() Dispose()

Releases the resources used by the ChartElementCollection<T>.

(Inherited from ChartElementCollection<T>)
Dispose(Boolean) Dispose(Boolean) Dispose(Boolean) Dispose(Boolean)

Releases the unmanaged resources used by the ChartElementCollection<T> and optionally releases the managed resources.

(Inherited from ChartElementCollection<T>)
Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetEnumerator() GetEnumerator() GetEnumerator() GetEnumerator()

Returns an enumerator that iterates through the Collection<T>.

(Inherited from Collection<T>)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
IndexOf(T) IndexOf(T) IndexOf(T) IndexOf(T)

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(Int32, T) Insert(Int32, T) Insert(Int32, T) Insert(Int32, T)

Inserts an element into the Collection<T> at the specified index.

(Inherited from Collection<T>)
InsertItem(Int32, T) InsertItem(Int32, T) InsertItem(Int32, T) InsertItem(Int32, T)

Inserts an element into the Collection<T> at the specified index location.

(Inherited from ChartElementCollection<T>)
Invalidate() Invalidate() Invalidate() Invalidate()

Forces the invalidation of the parent chart element.

(Inherited from ChartElementCollection<T>)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
Remove(T) Remove(T) Remove(T) Remove(T)

Removes the first occurrence of a specific object from the Collection<T>.

(Inherited from Collection<T>)
RemoveAt(Int32) RemoveAt(Int32) RemoveAt(Int32) RemoveAt(Int32)

Removes the element at the specified index of the Collection<T>.

(Inherited from Collection<T>)
RemoveItem(Int32) RemoveItem(Int32) RemoveItem(Int32) RemoveItem(Int32)

Removes the element at the specified index location of the Collection<T>.

(Inherited from ChartElementCollection<T>)
ResumeUpdates() ResumeUpdates() ResumeUpdates() ResumeUpdates()

Resumes the invalidation of a chart element in the collection.

(Inherited from ChartElementCollection<T>)
SetItem(Int32, T) SetItem(Int32, T) SetItem(Int32, T) SetItem(Int32, T)

Replaces the element at the specified index location.

(Inherited from ChartElementCollection<T>)
SuspendUpdates() SuspendUpdates() SuspendUpdates() SuspendUpdates()

Suspends the invalidation of a chart element in the collection.

(Inherited from ChartElementCollection<T>)
ToString() ToString() ToString() ToString()

Returns a string that represents the current object.

(Inherited from Object)

Properties

Count Count Count Count

Gets the number of elements actually contained in the Collection<T>.

(Inherited from Collection<T>)
ICollection.IsSynchronized ICollection.IsSynchronized ICollection.IsSynchronized ICollection.IsSynchronized

Gets a value indicating whether access to the ICollection is synchronized (thread safe).

(Inherited from Collection<T>)
ICollection.SyncRoot ICollection.SyncRoot ICollection.SyncRoot ICollection.SyncRoot

Gets an object that can be used to synchronize access to the ICollection.

(Inherited from Collection<T>)
ICollection<T>.IsReadOnly ICollection<T>.IsReadOnly ICollection<T>.IsReadOnly ICollection<T>.IsReadOnly

Gets a value indicating whether the ICollection<T> is read-only.

(Inherited from Collection<T>)
IList.IsFixedSize IList.IsFixedSize IList.IsFixedSize IList.IsFixedSize

Gets a value indicating whether the IList has a fixed size.

(Inherited from Collection<T>)
IList.IsReadOnly IList.IsReadOnly IList.IsReadOnly IList.IsReadOnly

Gets a value indicating whether the IList is read-only.

(Inherited from Collection<T>)
IList.Item[Int32] IList.Item[Int32] IList.Item[Int32] IList.Item[Int32]

Gets or sets the element at the specified index.

(Inherited from Collection<T>)
Items Items Items Items

Gets a IList<T> wrapper around the Collection<T>.

(Inherited from Collection<T>)
Item[Int32] Item[Int32] Item[Int32] Item[Int32]

Gets or sets the element at the specified index.

(Inherited from Collection<T>)

Explicit Interface Implementations

ICollection.CopyTo(Array, Int32) ICollection.CopyTo(Array, Int32) ICollection.CopyTo(Array, Int32) ICollection.CopyTo(Array, Int32)

Copies the elements of the ICollection to an Array, starting at a particular Array index.

(Inherited from Collection<T>)
IEnumerable.GetEnumerator() IEnumerable.GetEnumerator() IEnumerable.GetEnumerator() IEnumerable.GetEnumerator()

Returns an enumerator that iterates through a collection.

(Inherited from Collection<T>)
IList.Add(Object) IList.Add(Object) IList.Add(Object) IList.Add(Object)

Adds an item to the IList.

(Inherited from Collection<T>)
IList.Contains(Object) IList.Contains(Object) IList.Contains(Object) IList.Contains(Object)

Determines whether the IList contains a specific value.

(Inherited from Collection<T>)
IList.IndexOf(Object) IList.IndexOf(Object) IList.IndexOf(Object) IList.IndexOf(Object)

Determines the index of a specific item in the IList.

(Inherited from Collection<T>)
IList.Insert(Int32, Object) IList.Insert(Int32, Object) IList.Insert(Int32, Object) IList.Insert(Int32, Object)

Inserts an item into the IList at the specified index.

(Inherited from Collection<T>)
IList.Remove(Object) IList.Remove(Object) IList.Remove(Object) IList.Remove(Object)

Removes the first occurrence of a specific object from the IList.

(Inherited from Collection<T>)

Extension Methods

CopyToDataTable<T>(IEnumerable<T>) CopyToDataTable<T>(IEnumerable<T>) CopyToDataTable<T>(IEnumerable<T>) CopyToDataTable<T>(IEnumerable<T>)

Returns a DataTable that contains copies of the DataRow objects, given an input IEnumerable<T> object where the generic parameter T is DataRow.

CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption)

Copies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.

CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler)

Copies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.

Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable)

Casts the elements of an IEnumerable to the specified type.

OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable)

Filters the elements of an IEnumerable based on a specified type.

AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable)

Enables parallelization of a query.

AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable)

Converts an IEnumerable to an IQueryable.

Ancestors<T>(IEnumerable<T>) Ancestors<T>(IEnumerable<T>) Ancestors<T>(IEnumerable<T>) Ancestors<T>(IEnumerable<T>)

Returns a collection of elements that contains the ancestors of every node in the source collection.

Ancestors<T>(IEnumerable<T>, XName) Ancestors<T>(IEnumerable<T>, XName) Ancestors<T>(IEnumerable<T>, XName) Ancestors<T>(IEnumerable<T>, XName)

Returns a filtered collection of elements that contains the ancestors of every node in the source collection. Only elements that have a matching XName are included in the collection.

DescendantNodes<T>(IEnumerable<T>) DescendantNodes<T>(IEnumerable<T>) DescendantNodes<T>(IEnumerable<T>) DescendantNodes<T>(IEnumerable<T>)

Returns a collection of the descendant nodes of every document and element in the source collection.

Descendants<T>(IEnumerable<T>) Descendants<T>(IEnumerable<T>) Descendants<T>(IEnumerable<T>) Descendants<T>(IEnumerable<T>)

Returns a collection of elements that contains the descendant elements of every element and document in the source collection.

Descendants<T>(IEnumerable<T>, XName) Descendants<T>(IEnumerable<T>, XName) Descendants<T>(IEnumerable<T>, XName) Descendants<T>(IEnumerable<T>, XName)

Returns a filtered collection of elements that contains the descendant elements of every element and document in the source collection. Only elements that have a matching XName are included in the collection.

Elements<T>(IEnumerable<T>) Elements<T>(IEnumerable<T>) Elements<T>(IEnumerable<T>) Elements<T>(IEnumerable<T>)

Returns a collection of the child elements of every element and document in the source collection.

Elements<T>(IEnumerable<T>, XName) Elements<T>(IEnumerable<T>, XName) Elements<T>(IEnumerable<T>, XName) Elements<T>(IEnumerable<T>, XName)

Returns a filtered collection of the child elements of every element and document in the source collection. Only elements that have a matching XName are included in the collection.

InDocumentOrder<T>(IEnumerable<T>) InDocumentOrder<T>(IEnumerable<T>) InDocumentOrder<T>(IEnumerable<T>) InDocumentOrder<T>(IEnumerable<T>)

Returns a collection of nodes that contains all nodes in the source collection, sorted in document order.

Nodes<T>(IEnumerable<T>) Nodes<T>(IEnumerable<T>) Nodes<T>(IEnumerable<T>) Nodes<T>(IEnumerable<T>)

Returns a collection of the child nodes of every document and element in the source collection.

Remove<T>(IEnumerable<T>) Remove<T>(IEnumerable<T>) Remove<T>(IEnumerable<T>) Remove<T>(IEnumerable<T>)

Removes every node in the source collection from its parent node.

Applies to