Class HistoryList

HistoryList is LinearLinkedList containing HistoryEntries. Each HistoryEntry contains Command to execute

Inheritance
System.Object
HistoryList
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Syncfusion.Windows.Forms.Diagram
Assembly: Syncfusion.Diagram.Base.dll
Syntax
public class HistoryList

Constructors

HistoryList()

Declaration
public HistoryList()

Fields

m_bCanRedo

Declaration
protected bool m_bCanRedo
Field Value
Type Description
System.Boolean

m_bCanUndo

Declaration
protected bool m_bCanUndo
Field Value
Type Description
System.Boolean

m_nodeCurrent

Declaration
protected HistoryEntry m_nodeCurrent
Field Value
Type Description
HistoryEntry

Properties

CanRedo

Gets a value indicating whether there is HistoryEntry to Redo.

Declaration
public bool CanRedo { get; }
Property Value
Type Description
System.Boolean

CanUndo

Gets a value indicating whether there is HistoryEntry to Undo.

Declaration
public bool CanUndo { get; }
Property Value
Type Description
System.Boolean

Methods

AddEntry(ICommand)

Adds new HistoryEntry to Historylist.

Declaration
public void AddEntry(ICommand command)
Parameters
Type Name Description
ICommand command

The command.

CanMerge(ICommand)

Declaration
public bool CanMerge(ICommand cmdMerging)
Parameters
Type Name Description
ICommand cmdMerging
Returns
Type Description
System.Boolean

ClearHistory()

Clears HistoryList.

Declaration
public void ClearHistory()

GetRedoCmd()

Fetches for HistoryEntry to Redo.

Declaration
public ICommand GetRedoCmd()
Returns
Type Description
ICommand

The command.

GetRedoDescriptions(Int32, out String[])

Declaration
public int GetRedoDescriptions(int nDepth, out string[] strRedoDesciptions)
Parameters
Type Name Description
System.Int32 nDepth
System.String[] strRedoDesciptions
Returns
Type Description
System.Int32

GetUndoCmd()

Fetches HistoryEntry to Undo.

Declaration
public ICommand GetUndoCmd()
Returns
Type Description
ICommand

The command.

GetUndoDescriptions(Int32, out String[])

Declaration
public int GetUndoDescriptions(int nDepth, out string[] strUndoDesciptions)
Parameters
Type Name Description
System.Int32 nDepth
System.String[] strUndoDesciptions
Returns
Type Description
System.Int32

Merge(ICommand)

Declaration
public void Merge(ICommand cmdToMerge)
Parameters
Type Name Description
ICommand cmdToMerge

Extension Methods