Class CollectionPlus

A collection base class containing basic extra functionality to be inherited by CurveList, IPointList, GraphObjList.

Inheritance
Object
CollectionBase
CollectionPlus
Inherited Members
System.Collections.CollectionBase.System.Collections.IList.get_Item(System.Int32)
System.Collections.CollectionBase.System.Collections.IList.set_Item(System.Int32, System.Object)
Namespace: ZedGraph
Assembly: ZedGraph.dll
Syntax
[Serializable]
public class CollectionPlus : CollectionBase, IList, ICollection, IEnumerable
Remarks

The methods in this collection operate on basic Object types. Therefore, in order to make sure that the derived classes remain strongly-typed, there are no Add() or Insert() methods here, and no methods that return an object. Only Remove(), Move(), IndexOf(), etc. methods are included.

Constructors

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CollectionPlus()

Default Constructor

Declaration
public CollectionPlus()

Methods

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IndexOf(Object)

Return the zero-based position index of the specified object in the collection.

Declaration
public int IndexOf(object item)
Parameters
Type Name Description
Object item

A reference to the object that is to be found.
Returns
Type Description
Int32

The zero-based index of the specified object, or -1 if the object is not in the list
See Also
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Move(Int32, Int32)

Move the position of the object at the specified index to the new relative position in the list.

Declaration
public int Move(int index, int relativePos)
Parameters
Type Name Description
Int32 index

The zero-based index of the object to be moved.
Int32 relativePos

The relative number of positions to move the object. A value of -1 will move the object one position earlier in the list, a value of 1 will move it one position later. To move an item to the beginning of the list, use a large negative value (such as -999). To move it to the end of the list, use a large positive value.
Returns
Type Description
Int32

The new position for the object, or -1 if the object was not found.
Remarks

For Graphic type objects, this method controls the Z-Order of the items. Objects at the beginning of the list appear in front of objects at the end of the list.

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Remove(Int32)

Remove an object from the collection at the specified ordinal location.

Declaration
public void Remove(int index)
Parameters
Type Name Description
Int32 index

An ordinal position in the list at which the object to be removed is located.
See Also
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Remove(Object)

Remove an object from the collection based on an object reference.

Declaration
public void Remove(object item)
Parameters
Type Name Description
Object item

A reference to the object that is to be removed.
See Also

Implements