Interface IPointListEdit

An interface to a collection class containing data that define the set of points to be displayed on the curve.

Inherited Members
System.ICloneable.Clone()
Namespace: ZedGraph
Assembly: ZedGraph.dll
Syntax
public interface IPointListEdit : IPointList, ICloneable
Remarks

This interface is designed to allow customized data abstraction. The default data collection class is PointPairList, however, you can define your own data collection class using the IPointList interface. This IPointListEdit interface adds the ability to remove and add points to the list, and so is used by the CurveItem class for the AddPoint(Double, Double), RemovePoint(Int32), and Clear() methods.

Properties

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Item[Int32]

Indexer to access a data point by its ordinal position in the collection.

Declaration
PointPair this[int index] { get; set; }
Parameters
Type Name Description
System.Int32 index

The ordinal position (zero-based) of the data point to be accessed.
Property Value
Type Description
PointPair

A PointPair object instance.
Remarks

This is the standard interface that ZedGraph uses to access the data. Although you must pass a PointPair here, your internal data storage format can be anything.

Methods

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Add(Double, Double)

Appends a point to the end of the list. The data are passed in as two System.Double types.

Declaration
void Add(double x, double y)
Parameters
Type Name Description
System.Double x

The System.Double value containing the X data to be added.
System.Double y

The System.Double value containing the Y data to be added.
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Add(PointPair)

Appends a point to the end of the list. The data are passed in as a PointPair object.

Declaration
void Add(PointPair point)
Parameters
Type Name Description
PointPair point

The PointPair object containing the data to be added.
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Clear()

Clears all data points from the list. After calling this method, Count will be zero.

Declaration
void Clear()
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RemoveAt(Int32)

Removes a single data point from the list at the specified ordinal location (zero based).

Declaration
void RemoveAt(int index)
Parameters
Type Name Description
System.Int32 index

See Also