DataPointCollection Class
Represents a collection of DataPoint objects.
System.Collections.ObjectModel::Collection<DataPoint>
System.Windows.Forms.DataVisualization.Charting::ChartElementCollection<DataPoint>
System.Windows.Forms.DataVisualization.Charting::DataPointCollection
Assembly: System.Windows.Forms.DataVisualization (in System.Windows.Forms.DataVisualization.dll)
The DataPointCollection type exposes the following members.
| 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>.) |
| Name | Description | |
|---|---|---|
![]() | Add(T) | Adds an object to the end of the Collection<T>. (Inherited from Collection<T>.) |
![]() | Add(array<Double>) | Adds a new DataPoint object to the collection and sets its Y value. |
![]() | AddXY(Double, Double) | Adds a DataPoint object to the end of the collection, with the specified X-value and Y-value. |
![]() | AddXY(Object, array<Object>) | Adds a DataPoint object to the end of the collection, with the specified X-value and Y-value(s). |
![]() | AddY(Double) | Adds a DataPoint object to the end of the collection, with the specified Y-value. |
![]() | AddY(array<Object>) | Adds a DataPoint object to the end of the collection, with the specified Y-value(s). |
![]() | Clear | Removes all elements from the Collection<T>. (Inherited from Collection<T>.) |
![]() | ClearItems | Removes all elements from the Collection<T>. (Overrides ChartElementCollection<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>.) |
![]() | DataBind | Data binds the X-value, Y-value(s) and property values of the data points, such as Tooltip or LabelStyle, to the data source. |
![]() | DataBindXY(IEnumerable, array<IEnumerable>) | Data binds the X-value and Y-values of the collection's data points to the first columns of the specified data source. |
![]() | DataBindXY(IEnumerable, String, IEnumerable, String) | Data binds the X-value and Y-values of the data points in the collection to the specified columns of the specified data sources. |
![]() | DataBindY(array<IEnumerable>) | Data binds the Y-value(s) of the collection's data points to the first column of the specified data source(s). |
![]() | DataBindY(IEnumerable, String) | Data binds the Y-value(s) of the data points to the specified column(s) of the specified data source. |
![]() | Dispose() | Releases the resources used by the ChartElementCollection<T>. (Inherited from ChartElementCollection<T>.) |
![]() | Dispose(Boolean) | Releases the unmanaged resources used by the ChartElementCollection<T> and optionally releases the managed resources. (Inherited from ChartElementCollection<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.) |
![]() | FindAllByValue(Double) | Find all the data points that are equal to the specified value. |
![]() | FindAllByValue(Double, String) | Finds all the data points that are equal to the specified value. |
![]() | FindAllByValue(Double, String, Int32) | Finds all the data points that are equal to the specified value, starting from the specified index location. |
![]() | FindByValue(Double) | Finds the first data point that is equal to the specified value. |
![]() | FindByValue(Double, String) | Finds the first data point that is equal to the specified value. |
![]() | FindByValue(Double, String, Int32) | Finds the first data point that is equal to the specified value, starting from the specified index location. |
![]() | FindMaxByValue() | Finds the data point with the maximum value. |
![]() | FindMaxByValue(String) | Finds the data point value with the maximum value. |
![]() | FindMaxByValue(String, Int32) | Finds the data point with the maximum value, starting from the specified index location. |
![]() | FindMinByValue() | Finds the data point with the minimum value. |
![]() | FindMinByValue(String) | Finds the data point with the minimum value. |
![]() | FindMinByValue(String, Int32) | Finds the data point with the minimum value, starting from the specified index location. |
![]() | 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 element into the Collection<T> at the specified index location. (Inherited from ChartElementCollection<T>.) |
![]() | InsertXY | Inserts a data point with the specified X value and one or more specified Y values. |
![]() | InsertY | Inserts a data point with one or more specified Y values. |
![]() | Invalidate | Forces the invalidation of the parent chart element. (Inherited from ChartElementCollection<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 location of the Collection<T>. (Inherited from ChartElementCollection<T>.) |
![]() | ResumeUpdates | Resumes the invalidation of a chart element in the collection. (Inherited from ChartElementCollection<T>.) |
![]() | SetItem | Replaces the element at the specified index location. (Inherited from ChartElementCollection<T>.) |
![]() | SuspendUpdates | Suspends the invalidation of a chart element in the collection. (Inherited from ChartElementCollection<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>.) |
The DataPointCollection class represents a collection of DataPoint objects, which in turn represent the data points that are part of a Series object.
This collection class is implemented as the Points property of a Series object.
DataPoint objects can be appended or inserted into the collection with their X-value and Y-value(s) already specified as parameters. Note that they are also added automatically when a series is bound to a data source using either the DataBindY or DataBindXY method.
Data points are plotted in the order that they occur in this collection only if the series that the collection belongs to has its IsXValueIndexed property set to true (the default value is false), or if all X-values for all data points are zero. Otherwise data points are plotted using their X-values.
Data points can be located, and manipulated, based on maximum, minimum or specified X or Y-values using the overloaded FindMaxValue, FindMinValue or FindValue methods, respectively.
The Count() property indicates the total number of items in the collection, and is commonly used to find the upper bound of the collection.
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.

