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DataPointCollection Class

Represents a collection of DataPoint objects.

Namespace:  System.Windows.Forms.DataVisualization.Charting
Assembly:  System.Windows.Forms.DataVisualization (in System.Windows.Forms.DataVisualization.dll)

public class DataPointCollection : ChartElementCollection<DataPoint>

The DataPointCollection type exposes the following members.

  NameDescription
Public propertyCountGets the number of elements actually contained in the Collection<T>. (Inherited from Collection<T>.)
Public propertyItemGets or sets the element at the specified index. (Inherited from Collection<T>.)
Protected propertyItemsGets a IList<T> wrapper around the Collection<T>. (Inherited from Collection<T>.)
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  NameDescription
Public methodAdd(T)Adds an object to the end of the Collection<T>. (Inherited from Collection<T>.)
Public methodAdd(Double[])Adds a new DataPoint object to the collection and sets its Y value.
Public methodAddXY(Double, Double)Adds a DataPoint object to the end of the collection, with the specified X-value and Y-value.
Public methodAddXY(Object, Object[])Adds a DataPoint object to the end of the collection, with the specified X-value and Y-value(s).
Public methodAddY(Double)Adds a DataPoint object to the end of the collection, with the specified Y-value.
Public methodAddY(Object[])Adds a DataPoint object to the end of the collection, with the specified Y-value(s).
Public methodClearRemoves all elements from the Collection<T>. (Inherited from Collection<T>.)
Protected methodClearItemsRemoves all elements from the Collection<T>. (Overrides ChartElementCollection<T>.ClearItems().)
Public methodContainsDetermines whether an element is in the Collection<T>. (Inherited from Collection<T>.)
Public methodCopyToCopies the entire Collection<T> to a compatible one-dimensional Array, starting at the specified index of the target array. (Inherited from Collection<T>.)
Public methodDataBindData binds the X-value, Y-value(s) and property values of the data points, such as Tooltip or LabelStyle, to the data source.
Public methodDataBindXY(IEnumerable, IEnumerable[])Data binds the X-value and Y-values of the collection's data points to the first columns of the specified data source.
Public methodDataBindXY(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.
Public methodDataBindY(IEnumerable[])Data binds the Y-value(s) of the collection's data points to the first column of the specified data source(s).
Public methodDataBindY(IEnumerable, String)Data binds the Y-value(s) of the data points to the specified column(s) of the specified data source.
Public methodDispose()Releases the resources used by the ChartElementCollection<T>. (Inherited from ChartElementCollection<T>.)
Protected methodDispose(Boolean)Releases the unmanaged resources used by the ChartElementCollection<T> and optionally releases the managed resources. (Inherited from ChartElementCollection<T>.)
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodFindAllByValue(Double)Finds all the data points that are equal to the specified value.
Public methodFindAllByValue(Double, String)Finds all the data points that are equal to the specified value.
Public methodFindAllByValue(Double, String, Int32)Finds all the data points that are equal to the specified value, starting from the specified index location.
Public methodFindByValue(Double)Finds the first data point that is equal to the specified value.
Public methodFindByValue(Double, String)Finds the first data point that is equal to the specified value.
Public methodFindByValue(Double, String, Int32)Finds the first data point that is equal to the specified value, starting from the specified index location.
Public methodFindMaxByValue()Finds the data point with the maximum value.
Public methodFindMaxByValue(String)Finds the data point value with the maximum value.
Public methodFindMaxByValue(String, Int32)Finds the data point with the maximum value, starting from the specified index location.
Public methodFindMinByValue()Finds the data point with the minimum value.
Public methodFindMinByValue(String)Finds the data point with the minimum value.
Public methodFindMinByValue(String, Int32)Finds the data point with the minimum value, starting from the specified index location.
Public methodGetEnumeratorReturns an enumerator that iterates through the Collection<T>. (Inherited from Collection<T>.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodIndexOfSearches for the specified object and returns the zero-based index of the first occurrence within the entire Collection<T>. (Inherited from Collection<T>.)
Public methodInsertInserts an element into the Collection<T> at the specified index. (Inherited from Collection<T>.)
Protected methodInsertItemInserts an element into the Collection<T> at the specified index location. (Inherited from ChartElementCollection<T>.)
Public methodInsertXYInserts a data point with the specified X value and one or more specified Y values.
Public methodInsertYInserts a data point with one or more specified Y values.
Public methodInvalidateForces the invalidation of the parent chart element. (Inherited from ChartElementCollection<T>.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodRemoveRemoves the first occurrence of a specific object from the Collection<T>. (Inherited from Collection<T>.)
Public methodRemoveAtRemoves the element at the specified index of the Collection<T>. (Inherited from Collection<T>.)
Protected methodRemoveItemRemoves the element at the specified index location of the Collection<T>. (Inherited from ChartElementCollection<T>.)
Public methodResumeUpdatesResumes the invalidation of a chart element in the collection. (Inherited from ChartElementCollection<T>.)
Protected methodSetItemReplaces the element at the specified index location. (Inherited from ChartElementCollection<T>.)
Public methodSuspendUpdatesSuspends the invalidation of a chart element in the collection. (Inherited from ChartElementCollection<T>.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Explicit interface implemetationPrivate methodICollection.CopyToCopies the elements of the ICollection to an Array, starting at a particular Array index. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate propertyICollection<T>.IsReadOnlyGets a value indicating whether the ICollection<T> is read-only. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate propertyICollection.IsSynchronizedGets a value indicating whether access to the ICollection is synchronized (thread safe). (Inherited from Collection<T>.)
Explicit interface implemetationPrivate propertyICollection.SyncRootGets an object that can be used to synchronize access to the ICollection. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate methodIEnumerable.GetEnumeratorReturns an enumerator that iterates through a collection. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate methodIList.AddAdds an item to the IList. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate methodIList.ContainsDetermines whether the IList contains a specific value. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate methodIList.IndexOfDetermines the index of a specific item in the IList. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate methodIList.InsertInserts an item into the IList at the specified index. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate propertyIList.IsFixedSizeGets a value indicating whether the IList has a fixed size. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate propertyIList.IsReadOnlyGets a value indicating whether the IList is read-only. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate propertyIList.ItemGets or sets the element at the specified index. (Inherited from Collection<T>.)
Explicit interface implemetationPrivate methodIList.RemoveRemoves the first occurrence of a specific object from the IList. (Inherited from Collection<T>.)
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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.

.NET Framework

Supported in: 4.6, 4

.NET Framework Client Profile

Supported in: 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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